LightOJ1013-Love Calculator (dp) - 编程当前位置:& &&&LightOJ1013-Love Calculator (dp)LightOJ1013-Love Calculator (dp)&&网友分享于：&&浏览：0次LightOJ1013---Love Calculator (dp)Yes, you are developing a ‘Love calculator’. The software would be quite complex such that nobody could crack the exact behavior of the software.
So, given two names your software will generate the percentage of their ‘love’ according to their names. The software requires the following things:
The length of the shortest string that contains the names as subsequence.
Total number of unique shortest strings which contain the names as subsequence.
Now your task is to find these parts.
Input starts with an integer T (≤ 125), denoting the number of test cases.
Each of the test cases consists of two lines each containing a name. The names will contain no more than 30 capital letters.
For each of the test cases, you need to print one line of output. The output for each test case starts with the test case number, followed by the shortest length of the string and the number of unique strings that satisfies the given conditions.
You can assume that the number of unique strings will always be less than 263. Look at the sample output for the exact format.
Sample Input
Output for Sample Input
Case 1: 5 3
Case 2: 9 40
Case 3: 13 15
f[i][j]表示第一个串匹配到i,第二个串匹配到j需要的最短长度
dp[i][j]表示f[i][j]长度下的方案数
转移很简单
但是有一个地方要注意:
如果A[i]==B[j],那么方案数计算的时候,只能从f[i-1][j-1]处转移到, 如果从f[i-1][j]f[i][j-1]转移,会重复
#include &functional&
#include &algorithm&
#include &iostream&
#include &fstream&
#include &cstring&
#include &cstdio&
#include &cmath&
#include &cstdlib&
#include &queue&
#include &stack&
#include &map&
#include &bitset&
#include &set&
#include &vector&
using namespace std;
const double pi = acos(-1.0);
const int inf = 0x3f3f3f3f;
const double eps = 1e-15;
typedef long long LL;
typedef pair &int, int& PLL;
string A, B;
LL dp[50][50];
int f[50][50];
int main() {
int t, icase = 1;
scanf("%d", &t);
while (t--) {
cin && A && B;
int n = A.length();
int m = B.length();
memset(dp, 0, sizeof(dp));
dp[0][0] = 1;
memset(f, inf, sizeof(f));
f[0][0] = 0;
for (int i = 1; i &= ++i) {
dp[i][0] = 1;
for (int j = 1; j &= ++j) {
dp[0][j] = 1;
for (int i = 1; i &= ++i) {
for (int j = 1; j &= ++j) {
if (f[i][j] & f[i - 1][j] + 1) {
f[i][j] = f[i - 1][j] + 1;
if (f[i][j] & f[i][j - 1] + 1) {
f[i][j] = f[i][j - 1] + 1;
if (A[i - 1] == B[j - 1]) {
if (f[i][j] & f[i - 1][j - 1] + 1) {
f[i][j] = f[i - 1][j - 1] + 1;
if (f[i][j] == f[i - 1][j] + 1 && A[i - 1] != B[j - 1]) {
dp[i][j] += dp[i - 1][j];
if (f[i][j] == f[i][j - 1] + 1 && A[i - 1] != B[j - 1]) {
dp[i][j] += dp[i][j - 1];
if (A[i - 1] == B[j - 1] && f[i][j] == f[i - 1][j - 1] + 1) {
dp[i][j] += dp[i - 1][j - 1];
printf("Case %d: %d %lld\n", icase++, f[n][m], dp[n][m]);
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题目难度分析表
题目难度分析表
& 作者及来源： 泳裤王子 - 博客园 &
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摘要: UvaOj
题目难度分析表
题目难度分析表"：：
# id title solved by difficulty1 100 the 3n + 1 problem 26485 12 102 ecological bin packing 10608 23 10071 back to high school physics 9554 34 10055 hashmat the brave warrior 9432 35 272 tex quotes 8192 36 458 the decoder 7289 47 136 ugly numbers 6729 48 10038 jolly jumpers 6319 49 10035 primary arithmetic 6268 410 10018 reverse and add 6061 411 108 maximum sum 6022 412 113 power of cryptography 5804 513 494 kindergarten counting game 5784 514 299 train swapping 5752 515 10082 wertyu 5481 516 101 the blocks problem 5225 517 591 box of bricks 5113 518 10008 what's cryptanalysis? 4942 519 10300 ecological premium 4839 520 575 skew binary 4732 621 369 combinations 4543 622 151 power crisis 4470 623 382 perfection 4393 624 10370 above average 4377 625 160 factors and factorials 4314 626 10189 minesweeper 4303 627 579 clockhands 4293 628 264 count on cantor 4237 629 424 integer inquiry 4214 630 499 what's the frequency, kenneth? 4194 631 10110 light, more light 4189 632 541 error correction 4096 633 543 goldbach's conjecture 4021 734 10004 bicoloring 3939 735 10107 what is the median? 3891 736 374 big mod 3876 737 686 goldbach's conjecture (ii) 3852 738 105 the skyline problem 3839 739 495 fibonacci freeze 3827 740 483 word scramble 3793 741 10041 vito's family 3785 742 10019 funny encryption method 3773 743 256 quirksome squares 3713 744 138 street numbers 3661 745 10079 pizza cutting 3627 746 530 binomial showdown 3609 747 12 748 111 history grading 3533 749 10340 all in all 3501 850 10783 odd sum 3500 851 476 points in figures: rectangles 3481 852 344 roman digititis 3443 853 673 parentheses balance 3436 854 10346 peter's smoke 3367 855 120 stacks of flapjacks 3359 856 10469 to carry or not to carry 3338 857 10127 ones 3329 858 492 pig-latin 3265 859 438 the circumference of the circle 3252 860 10327 flip sort 3214 861 401 palindromes 3212 862 10050 hartals 3211 863 103 stacking boxes 3207 864 324 factorial frequencies 3191 865 146 id codes 3138 866 350 pseudo-random numbers 3115 967 10106 product 3083 968 10222 decode the mad man 3037 969 10006 carmichael numbers 3036 970 568 just the facts 3033 971 440 eeny meeny moo 3023 972 305 joseph 2986 973 10405 longest common subsequence 2954 974 583 prime factors 2952 975 484 the department of redundancy department 2947 976 10302 summation of polynomials 2934 977 477 points in figures: rectangles and circles 2933 978 412 pi 2898 979 446 kibbles ``n'' bits ``n'' bits ``n'' bits 2890 980 406 prime cuts 2885 981 10260 soundex 2848 982 640 self numbers 2846 983 572 oil deposits 2835 984 294 divisors 2832 985 118 mutant flatworld explorers 2816 986 107 the cat in the hat 2791 987 445 marvelous mazes 2775 1088 112 tree summing 2755 1089 694 the collatz sequence 2741 1090 706 lcd display 2736 1091 10013 super long sums 2702 1092 439 knight moves 2699 1093 443 humble numbers 2680 1094 674 coin change 2644 1095 10812 beat the spread! 2596 1096 371 ackermann functions 2573 1097 834 continued fractions 2565 1098 119 greedy gift givers 2552 1099 10220 i love big numbers ! 2532 10100 386 perfect cubes 2529 10101 167 the sultan's successors 2484 11102 444 encoder and decoder 2477 11103 713 adding reversed numbers 2471 11104 195 anagram 2464 11105 392 polynomial showdown 2458 11106 10424 love calculator 2453 11107 190 circle through three points 2430 11108 291 the house of santa claus 2425 11109 10161 ant on a chessboard 2410 11110 489 hangman judge 2373 11111 128 software crc 2359 11112 133 the dole queue 2334 11113 490 rotating sentences 2323 11114 10003 cutting sticks 2312 11115 573 the snail 2277 12116 10098 generating fast, sorted permutation 2266 12117 488 triangle wave 2252 12118 408 uniform generator 2243 12119 10324 zeros and ones 2225 12120 10235 simply emirp 2220 12121 441 lotto 2200 12122 106 fermat vs. pythagoras 2196 12123 414 machined surfaces 2181 12124 623 500! 2174 12125 10323 factorial! you must be kidding!!! 2141 12126 576 haiku review 2138 12127 200 rare order 2119 12128 10209 is this integration ? 2118 13129 10252 common permutation 2114 13130 10432 polygon inside a circle 2108 13131 10062 tell me the frequencies! 2101 13132 116 unidirectional tsp 2076 13133 536 tree recovery 2046 13134 10473 simple base conversion 2034 13135 10131 is bigger smarter? 2017 13136 847 a multiplication game 2012 13137 10699 count the factors 2010 13138 104 arbitrage 2005 13139 10924 prime words 2004 13140 417 word index 1992 13141 156 ananagrams 1986 13142 496 simply subsets 1982 13143 10409 die game 1982 13144 478 points in figures: rectangles, circles, triangles 1973 13145 10530 guessing game 1966 13146 10929 you can say 11 1963 13147 621 secret research 1960 14148 10195 the knights of the round table 1960 14149 10338 mischievous children 1954 14150 10066 the twin towers 1935 14151 130 roman roulette 1933 14152 352 the seasonal war 1929 14153 10921 find the telephone 1921 14154 400 unix ls 1914 14155 10579 fibonacci numbers 1849 14156 10192 vacation 1843 14157 10515 powers et al. 1829 14158 117 the postal worker rings once 1827 14159 10000 longest paths 1822 15160 147 dollars 1805 15161 846 steps 1804 15162 10550 combination lock 1803 15163 155 all squares 1797 15164 191 intersection 1796 15165 10104 euclid problem 1796 15166 10499 the land of justice 1762 15167 10591 happy number 1744 15168 10137 the trip 1733 15169 122 trees on the level 1729 15170 121 pipe fitters 1714 15171 10310 dog and gopher 1714 15172 10193 all you need is love 1691 16173 10305 ordering tasks 1689 16174 10034 freckles 1679 16175 357 let me count the ways 1653 16176 389 basically speaking 1652 16177 10334 ray through glasses 1637 16178 10931 parity 1634 16179 10010 where's waldorf? 1615 16180 271 simply syntax 1604 17181 10099 the tourist guide 1604 17182 300 maya calendar 1601 17183 10450 world cup noise 1591 17184 532 dungeon master 1590 17185 562 dividing coins 1585 17186 514 rails 1571 17187 498 polly the polynomial 1569 17188 612 dna sorting 1561 17189 10105 polynomial coefficients 1560 17190 534 frogger 1555 17191 10282 babelfish 1555 17192 594 one little, two little, three little endians 1549 17193 348 optimal array multiplication sequence 1546 17194 442 matrix chain multiplication 1539 17195 336 a node too far 1532 17196 10015 joseph's cousin 1521 17197 10789 prime frequency 1507 18198 10033 interpreter 1505 18199 10168 summation of four primes 1499 18200 340 master-mind hints 1496 18201 144 student grants 1482 18202 10042 smith numbers 1477 18203 154 recycling 1460 18204 10533 digit primes 1456 18205 10420 list of conquests 1455 18206 109 scud busters 1446 18207 740 baudot data communication code 1431 19208 10361 automatic poetry 1418 19209 10394 twin primes 1417 19210 216 getting in line 1413 19211 544 heavy cargo 1406 19212 10183 how many fibs? 1396 19213 378 intersecting lines 1395 19214 10286 trouble with a pentagon 1393 19215 624 cd 1383 19216 10074 take the land 1382 19217 11000 bee 1381 19218 661 blowing fuses 1374 19219 10922 2 the 9s 1374 19220 10116 robot motion 1371 19221 10608 friends 1369 19222 278 chess 1367 19223 10295 hay points 1365 19224 10336 rank the languages 1359 19225 537 artificial intelligence? 1353 20226 10221 satellites 1351 20227 642 word amalgamation 1349 20228 10191 longest nap 1339 20229 11172 relational operator 1334 20230 10276 hanoi tower troubles again! 1323 20231 587 there's treasure everywhere! 1321 20232 10970 big chocolate 1320 20233 524 prime ring problem 1316 20234 10219 find the ways ! 1316 20235 343 what base is this? 1311 20236 516 prime land 1311 20237 10152 shellsort 1300 20238 315 network 1294 20239 574 sum it up 1292 20240 567 risk 1289 21241 474 heads / tails probability 1287 21242 355 the bases are loaded 1285 21243 10049 self-describing sequence 1273 21244 10070 leap year or not leap year and ... 1272 21245 10182 bee maja 1267 21246 10223 how many nodes ? 1262 21247 636 squares (iii) 1250 21248 202 repeating decimals 1247 21249 10130 supersale 1245 21250 10196 check the check 1243 21251 10190 divide, but not quite conquer! 1241 21252 10198 counting 1241 21253 123 searching quickly 1239 21254 729 the hamming distance problem 1207 22255 10297 beavergnaw 1206 22256 10700 camel trading 1195 22257 320 border 1189 22258 465 overflow 1187 22259 497 strategic defense initiative 1187 22260 153 permalex 1186 22261 739 soundex indexing 1181 22262 637 booklet printing 1177 23263 10067 playing with wheels 1177 23264 124 following orders 1169 23265 409 excuses, excuses! 1169 23266 423 mpi maelstrom 1163 23267 422 word-search wonder 1156 23268 459 graph connectivity 1153 23269 486 english-number translator 1149 23270 10026 shoemaker's problem 1146 23271 10611 the playboy chimp 1140 23272 253 cube painting 1139 23273 10474 where is the marble? 1135 23274 10701 pre, in and post 1132 23275 10048 audiophobia 1128 23276 482 permutation arrays 1127 24277 555 bridge hands 1121 24278 10509 r u kidding mr. feynman! 1120 24279 10077 the stern-brocot number system 1118 24280 311 packets 1113 24281 10784 diagonal 1113 24282 10258 contest scoreboard 1111 24283 485 pascal's triangle of death 1109 24284 748 exponentiation 1105 24285 413 up and down sequences 1103 24286 531 compromise 1102 24287 558 wormholes 1102 24288 10573 geometry paradox 1102 24289 10945 mother bear 1102 24290 145 gondwanaland telecom 1094 24291 10407 simple division 1094 24292 10170 the hotel with infinite rooms 1086 24293 114 simulation wizardry 1080 25294 10025 the ? 1 ? 2 ? ... ? n = k problem 1078 25295 10242 fourth point !! 1078 25296 201 squares 1077 25297 10465 homer simpson 1076 25298 297 quadtrees 1073 25299 326 extrapolation using a difference table 1073 25300 10102 the path in the colored field 1071 25301 170 clock patience 1063 25302 10179 irreducable basic fractions 1062 25303 10162 last digit 1061 25304 161 traffic lights 1058 25305 140 bandwidth 1053 25306 10036 divisibility 1052 25307 10487 closest sums 1049 25308 356 square pegs and round holes 1045 25309 231 testing the catcher 1037 26310 10622 perfect p-th powers 1034 26311 10678 the grazing cow 1028 26312 784 maze exploration 1027 26313 10009 all roads lead where? 1023 26314 10285 longest run on a snowboard 1015 26315 10056 what is the probability ? 1010 26316 10139 factovisors 1010 26317 10347 medians 1009 26318 10489 boxes of chocolates 1009 26319 639 don't get rooked 1007 26320 615 is it a tree? 1006 26321 836 largest submatrix 1006 26322 10642 can you solve it? 1003 26323 539 the settlers of catan 1001 26324 701 the archeologists' dilemma 1001 26325 10684 the jackpot 1001 26326 10451 ancient village sports 994 27327 115 climbing trees 993 27328 10703 free spots 993 27329 10427 naughty sleepy boys 984 27330 10633 rare easy problem 981 27331 325 identifying legal pascal real constants 977 27332 166 making change 973 27333 455 periodic strings 973 27334 152 tree's a crowd 971 27335 275 expanding fractions 970 27336 507 jill rides again 968 27337 10408 farey sequences 967 27338 10502 counting rectangles 967 27339 10014 simple calculations 964 27340 384 slurpys 962 28341 10093 an easy problem! 961 28342 125 numbering paths 958 28343 141 the spot game 958 28344 10125 sumsets 958 28345 10229 modular fibonacci 957 28346 437 the tower of babylon 953 28347 333 recognizing good isbns 952 28348 10878 decode the tape 949 28349 10815 andy's first dictionary 944 28350 10188 automated judge script 940 28351 10267 graphical editor 940 28352 608 counterfeit dollar 934 28353 110 meta-loopless sorts 928 29354 193 graph coloring 924 29355 10299 relatives 919 29356 628 passwords 916 29357 10491 cows and cars 916 29358 10365 blocks 914 29359 10080 gopher ii 913 29360 580 critical mass 910 29361 337 interpreting control sequences 907 29362 10020 minimal coverage 902 29363 164 string computer 900 29364 10714 ants 900 29365 377 cowculations 899 29366 10583 ubiquitous religions 899 29367 700 date bugs 898 29368 10176 ocean deep ! - make it shallow !! 896 30369 450 little black book 890 30370 436 arbitrage (ii) 885 30371 10490 mr. azad and his son!!!!! 884 30372 10281 average speed 882 30373 280 vertex 879 30374 10007 count the trees 877 30375 10140 prime distance 873 30376 725 division 871 30377 793 network connections 871 30378 10298 power strings 869 30379 10452 marcus, help! 866 31380 10404 bachet's game 861 31381 10100 longest match 859 31382 11185 ternary 859 31383 619 numerically speaking 854 31384 10205 stack 'em up 853 31385 644 immediate decodability 849 31386 10508 word morphing 849 31387 542 france '98 848 31388 10673 play with floor and ceil 848 31389 127 ``accordian'' patience 844 31390 571 jugs 844 31391 332 rational numbers from repeating fractions 841 31392 10359 tiling 839 32393 10078 the art gallery 838 32394 10539 almost prime numbers 832 32395 696 how many knights 831 32396 10002 center of masses 830 32397 10948 the primary problem 830 32398 263 number chains 824 32399 353 pesky palindromes 821 32400 712 s-trees 819 32401 10656 maximum sum (ii) 812 33402 10400 game show math 810 33403 466 mirror, mirror 807 33404 10115 automatic editing 805 33405 727 equation 803 33406 129 krypton factor 799 33407 448 oops! 797 33408 10664 luggage 796 33409 232 crossword answers 794 33410 131 the psychic poker player 793 33411 10129 play on words 784 34412 10194 football (aka soccer) 784 34413 10081 tight words 783 34414 10142 australian voting 780 34415 10363 tic tac toe 780 34416 10303 how many trees? 774 34417 10397 connect the campus 773 34418 10935 throwing cards away i 773 34419 895 word problem 772 34420 10293 word length and frequency 767 35421 10301 rings and glue 764 35422 679 dropping balls 762 35423 641 do the untwist 760 35424 620 cellular structure 755 35425 10311 goldbach and euler 755 35426 383 shipping routes 751 35427 10790 how many points of intersection? 751 35428 10954 add all 746 36429 126 the errant physicist 743 36430 10800 not that kind of graph 743 36431 260 il gioco dell'x 741 36432 10415 eb alto saxophone player 740 36433 227 puzzle 739 36434 10443 rock, scissors, paper 739 36435 755 487--436 913 joana and the odd numbers 737 36437 602 what day is it? 734 36438 10940 throwing cards away ii 734 36439 681 convex hull finding 730 36440 301 transportation 729 36441 306 cipher 725 37442 10112 myacm triangles 719 37443 10341 solve it 717 37444 10494 if we were a child again 717 37445 585 triangles 716 37446 750 8 queens chess problem 713 37447 11044 searching for nessy 713 37448 850 crypt kicker ii 711 37449 10315 poker hands 705 38450 10852 less prime 705 38451 10279 mine sweeper 704 38452 394 mapmaker 702 38453 10496 collecting beepers 700 38454 10903 rock-paper-scissors tournament 700 38455 10283 the kissing circles 694 38456 900 brick wall patterns 691 38457 460 overlapping rectangles 690 38458 699 the falling leaves 687 39459 402 m*a*s*h 685 39460 10037 bridge 684 39461 10128 queue 684 39462 10101 bangla numbers 681 39463 10693 traffic volume 679 39464 825 walking on the safe side 677 39465 10057 a mid-summer night's dream. 675 39466 10063 knuth's permutation 672 39467 11059 maximum product 672 39468 10069 distinct subsequences 670 40469 213 message decoding 669 40470 481 what goes up 666 40471 785 grid colouring 665 40472 10344 23 out of 5 664 40473 10377 maze traversal 659 40474 10551 basic remains 658 40475 11192 group reverse 655 40476 10245 the closest pair problem 654 40477 10706 number sequence 654 40478 762 we ship cheap 651 41479 10141 request for proposal 650 41480 10600 acm contest and blackout 647 41481 159 word crosses 643 41482 10810 ultra-quicksort 642 41483 187 transaction processing 640 41484 397 equation elation 640 41485 808 bee breeding 640 41486 861 little bishops 640 41487 188 perfect hash 639 41488 331 mapping the swaps 639 41489 821 page hopping 635 42490 10392 factoring large numbers 633 42491 469 wetlands of florida 632 42492 839 not so mobile 631 42493 820
bandwidth 630 42494 11057 exact sum 629 42495 10054 the necklace 625 42496 884 factorial factors 618 43497 10375 choose and divide 618 43498 10976 fractions again?! 615 43499 10523 very easy !!! 613 43500 10589 area 612 43501 218 moth eradication 611 43502 10519 !! really strange !! 608 44503 10368 euclid's game 604 44504 10918 tri tiling 602 44505 10919 prerequisites? 601 44506 134 loglan-a logical language 597 44507 142 mouse clicks 596 44508 391 mark-up 594 45509 10719 quotient polynomial 594 45510 1/4)-d sqr/rects/cubes/boxes? 593 45511 10730 antiarithmetic? 592 45512 254 towers of hanoi 587 45513 10534 wavio sequence 585 45514 148 anagram checker 584 45515 651 deck 584 45516 626 ecosystem 583 45517 10683 the decadary watch 582 46518 435 block voting 581 46519 10943 how do you add? 581 46520 11121 base -2 581 46521 630 anagrams (ii) 580 46522 634 polygon 579 46523 10500 robot maps 579 46524 737 gleaming the cubes 577 46525 10360 rat attack 576 46526 10287 gifts in a hexagonal box 575 46527 711 dividing up 573 46528 183 bit maps 571 46529 362 18,000 seconds remaining 570 46530 10051 tower of cubes 570 46531 132 bumpy objects 569 47532 10165 stone game 568 47533 10213 how many pieces of land ? 564 47534 10369 arctic network 564 47535 10916 factstone benchmark 564 47536 10905 children's game 562 47537 416 led test 561 47538 10012 how big is it? 561 47539 10879 code refactoring 560 47540 540 team queue 559 47541 10566 crossed ladders 558 47542 10702 travelling salesman 556 48543 880 cantor fractions 554 48544 429 word transformation 553 48545 10596 morning walk 551 48546 10249 the grand dinner 550 48547 10422 knights in fen 550 48548 535 globetrotter 548 48549 10001 garden of eden 547 48550 10326 the polynomial equation 547 48551 703 triple ties: the organizer's nightmare 546 49552 184 laser lines 544 49553 10493 cats, with or without hats 544 49554 10393 the one-handed typist 542 49555 11005 cheapest base 539 49556 379 hi-q 538 49557 617 nonstop travel 537 49558 714 copying books 536 49559 10065 useless tile packers 536 49560 11063 b2-sequence 536 49561 10016 flip-flop the squarelotron 534 50562 10651 pebble solitaire 534 50563 10803 thunder mountain 534 50564 10364 square 532 50565 11069 a graph problem 532 50566 601 the path 530 50567 10813 traditional bingo 530 50568 434 matty's blocks 529 50569 10680 lcm 527 50570 10930 a-sequence 527 50571 10653 bombs! no they are mines!! 526 50572 10210 romeo and juliet ! 525 50573 10926 how many dependencies? 525 50574 11040 add bricks in the wall 525 50575 10199 tourist guide 523 51576 10908 largest square 523 51577 550 multiplying by rotation 521 51578 590 always on the run 516 51579 208 firetruck 515 51580 10374 election 514 52581 10667 largest block 514 52582 10200 prime time 513 52583 10330 power transmission 512 52584 10518 how many calls? 511 52585 10147 highways 510 52586 273 jack straws 508 52587 347 run, run, runaround numbers 508 52588 10910 marks distribution 508 52589 10061 how many zero's and how many digits ? 506 52590 10088 trees on my island 506 52591 855 lunch in grid city 505 52592 10849 move the bishop 505 52593 10507 waking up brain 502 53594 10946 you want what filled? 502 53595 165 stamps 501 53596 454 anagrams 501 53597 10306 e-coins 501 53598 327 evaluating simple c expressions 499 53599 10171 meeting prof. miguel... 498 53600 10791 minimum sum lcm 497 53601 10044 erdos numbers 496 53602 10763 foreign exchange 495 54603 688 mobile phone coverage 494 54604 10739 string to palindrome 493 54605 10880 colin and ryan 490 54606 10780 again prime? no time. 489 54607 10371 time zones 488 54608 843 crypt kicker 485 55609 10620 a flea on a chessboard 485 55610 318 domino effect 483 55611 471 magic numbers 482 55612 10602 editor nottobad 481 55613 11074 draw grid 481 55614
rendezvous 479 55615 186 trip routing 478 55616 10391 compound words 477 56617 10484 divisibility of factors 477 56618 381 making the grade 476 56619 677 all walks of length ``n'' from the first node 476 56620 10446 the marriage interview :-) 476 56621 10773 back to intermediate math 476 56622 255 correct move 475 56623 10527 persistent numbers 475 56624 10202 pairsumonious numbers 474 56625 10497 sweet child makes trouble 474 56626 457 linear cellular automata 473 56627 556 amazing 473 56628 741 burrows wheeler decoder 472 56629 796 critical links 472 56630 10304 optimal binary search tree 471 56631 743 the mtm machine 470 56632 10689 yet another number sequence 469 56633 526 string distance and transform process 467 57634 -bis 467 57635 10271 chopsticks 467 57636 162 beggar my neighbour 465 57637 10126 zipf's law 465 57638 627 the net 464 57639 584 bowling 462 57640 10705 the fun number system 462 57641 10522 height to area 460 58642 11001 necklace 460 58643 11150 cola 459 58644 10738 riemann vs mertens 458 58645 705 slash maze 457 58646 10820 send a table 457 58647 622 grammar evaluation 456 58648 10928 my dear neighbours 456 58649 245 uncompress 454 58650 314 robot 454 58651 10005 packing polygons 454 58652 10617 again palindrome 451 59653 638 finding rectangles 450 59654 704 colour hash 450 59655 10060 a hole to catch a man 450 59656 10669 three powers 450 59657 10920 spiral tap 449 59658 143 orchard trees 448 59659 538 balancing bank accounts 446 59660 10132 file fragmentation 444 60661 10650 determinate prime 444 60662 517 word 442 60663 551 nesting a bunch of brackets 442 60664 588 video surveillance 440 60665 10307 killing aliens in borg maze 440 60666 10309 turn the lights off 439 60667 586 instant complexity 438 60668 10801 lift hopping 438 60669 10090 marbles 437 61670 10354 avoiding your boss 436 61671 10925 krakovia 436 61672 168 theseus and the minotaur 435 61673 209 triangular vertices 435 61674 468 key to success 434 61675 547 ddf 433 61676 10022 delta-wave 432 61677 10721 bar codes 432 61678 10337 flight planner 431 61679 10460 find the permuted string 431 61680 10865 brownie points 431 61681 196 spreadsheet 428 62682 10233 dermuba triangle 428 62683 10226 hardwood species 427 62684 10871 primed subsequence 426 62685 11039 building designing 425 62686 222 budget travel 424 62687 10197 learning portuguese 422 63688 290 palindroms &---& smordnilap 420 63689 10120 gift?! 420 63690 756 biorhythms 419 63691 654 ratio 418 63692 833 water falls 418 63693 10178 count the faces. 417 64694 10503 the dominoes solitaire 417 64695 11137 ingenuous cubrency 417 64696 10541 stripe 415 64697 10154 weights and measures 414 64698 418 molecules 413 64699 632 compression (ii) 413 64700 10227 forests 412 64701 647 chutes and ladders 411 64702 462 bridge hand evaluator 410 65703 296 safebreaker 409 65704 380 call forwarding 409 65705 11219 how old are you? 409 65706 501 black box 408 65707 598 bundling newspapers 408 65708 10896 known plaintext attack 407 65709 270 lining up 403 66710 10201 adventures in moving - part iv 403 66711 10308 roads in the north 403 66712 10290 {sum+=i++} to reach n 402 66713 10356 rough roads 402 66714 321 the new villa 401 66715 10774 repeated josephus 400 66716 10994 simple addition 399 66717 177 paper folding 397 67718 403 postscript 397 67719 10554 calories from fat 395 67720 10092 the problem with the problem setter 393 67721 10325 the lottery 393 67722 616 coconuts, revisited 392 68723 763 fibinary numbers 390 68724 393 the doors 389 68725 10677 base equality 389 68726 10776 determine the combination 389 68727 815 flooded! 388 68728 220 othello 387 68729 11152 colourful flowers 387 68730 10254 the priest mathematician 386 69731 157 route finding 385 69732 10284 chessboard in fen 385 69733 10892 lcm cardinality 384 69734 139 telephone tangles 382 69735 10453 make palindrome 382 69736 10646 what is the card? 382 69737 10717 mint 382 69738 10585 center of symmetry 381 70739 10440 ferry loading ii 376 70740 11078 open credit system 374 71741 10113 exchange rates 373 71742 10312 expression bracketing 373 71743 172 calculator language 372 71744 11089 fi-binary number 370 72745 10029 edit step ladders 369 72746 10543 traveling politician 369 72747 10610 gopher and hawks 369 72748 313 intervals 367 72749 897 anagrammatic primes 365 73750 670 the dog task 364 73751 10959 the party, part i 363 73752 665 false coin 362 73753 10625 gnu = gnu'snotunix 362 73754 11105 semi-prime h-numbers 362 73755 702 the vindictive coach 361 73756 10150 doublets 359 74757 10856 recover factorial 359 74758 10387 billiard 358 74759 341 non-stop travel 357 74760 10603 fill 357 74761 10963 the swallowing ground 357 74762 812 trade on verweggistan 356 74763 10851 2d hieroglyphs decoder 356 74764 10894 save hridoy 355 75765 10174 couple-bachelor-spinster numbers. 354 75766 10313 pay the price 354 75767 11115 uncle jack 354 75768 137 polygons 353 75769 345 it's ir-resist-able! 353 75770 10181 15-puzzle problem 353 75771 10806 dijkstra, dijkstra. 353 75772 11220 decoding the message. 353 75773 11068 an easy task 352 75774 181 hearts 351 75775 10718 bit mask 351 75776 657 the die is cast 350 76777 10401 injured queen problem 350 76778 11076 add again 350 76779 11067 little red riding hood 348 76780 10891 game of sum 347 76781 614 mapping the route 345 77782 10637 coprimes 345 77783 10679 i love strings!! 345 77784 11173 grey codes 345 77785 493 rational spiral 342 77786 10986 sending email 342 77787 10912 simple minded hashing 341 78788 11056 formula 1 341 78789 545 heads 339 78790 10212 the last non-zero digit. 339 78791 10672 marbles on a tree 339 78792 10895 matrix transpose 339 78793 548 tree 338 78794 871 counting cells in a blob 338 78795 11085 back to the 8-queens 337 79796 427 flatland piano movers 336 79797 710 the game 336 79798 11003 boxes 336 79799 388 galactic import 335 79800 339 samegame simulation 334 79801 10586 polynomial remains 332 80802 10947 bear with me, again.. 332 80803 11151 longest palindrome 331 80804 11054 wine trading in gergovia 330 80805 10616 divisible group sums 328 81806 349 transferable voting (ii) 327 81807 10382 watering grass 327 81808 10576 y2k accounting bug 327 81809 10742 the new rule in euphomia 327 81810 10047 the monocycle 326 81811 10482 the candyman can 326 81812 776 monkeys in a regular forest 325 81813 10520 determine it 325 81814 10578 the game of 31 325 81815 668 parliament 324 82816 589 pushing boxes 323 82817 732 anagrams by stack 323 82818 10075 airlines 323 82819 150 double time 322 82820 135 no rectangles 320 83821 10528 major scales 320 83822 10830 a new function 320 83823 447 population explosion 319 83824 565 pizza anyone? 318 83825 11064 number theory 318 83826 10670 work reduction 317 84827 10978 let's play magic! 317 84828 557 burger 316 84829 10259 hippity hopscotch 316 84830 10406 cutting tabletops 316 84831 10842 traffic flow 316 84832 179 code breaking 315 84833 865 substitution cypher 314 84834 11042 complex, difficult and complicated 314 84835 11244 counting stars 313 85836 10911 forming quiz teams 311 85837 11012 cosmic cabbages 311 85838 302 john's trip 310 85839 892 finding words 310 85840 10532 combination! once again 310 85841 10536 game of euler 310 85842 10662 the wedding 310 85843 10720 graph construction 310 85844 467 synching signals 309 86845 10635 prince and princess 309 86846 10296 jogging trails 308 86847 10991 region 307 86848 520 append 306 87849 10574 counting rectangles 305 87850 11233 deli deli 305 87851 533 equation solver 304 87852 10058 jimmi's riddles 304 87853 10264 the most potent corner 304 87854 10333 the tower of ascii 304 87855 10821 constructing bst 304 87856 10017 the never ending towers of hanoi 303 87857 10261 ferry loading 302 88858 11062 andy's second dictionary 301 88859 11207 the easiest way 301 88860 633 a chess knight 300 88861 10250 the other two trees 300 88862 10681 teobaldo's trip 300 88863 993 product of digits 299 89864 10097 the color game 299 89865 10862 connect the cable wires 299 89866 11045 my t-shirt suits me 298 89867 10094 place the guards 297 89868 11223 o: dah dah dah! 297 89869 338 long multiplication 296 89870 521 gossiping 296 89871 10167 birthday cake 296 89872 10217 a dinner with schwarzenegger!!! 296 89873 10555 dead fraction 296 89874 10351 cutting diamonds 295 90875 10083 division 294 90876 10203 snow clearing 294 90877 171 car trialling 292 91878 10957 so doku checker 292 91879 276 egyptian multiplication 289 92880 10771 barbarian tribes 289 92881 242 stamps and envelope size 288 92882 10164 number game 288 92883 10785 the mad numerologist 288 92884 11222 only i did it! 288 92885 10410 tree reconstruction 287 92886 10466 how far? 287 92887 346 getting chorded 286 93888 529 addition chains 286 93889 10685 nature 285 93890 11086 composite prime 285 93891 185 roman numerals 284 93892 753 a plug for unix 284 93893 824 coast tracker 284 93894 10158 war 284 93895 10564 paths through the hourglass 283 94896 10480 sabotage 282 94897 428 swamp county roofs 280 95898 662 fast food 280 95899 718 skyscraper floors 280 95900 385 dna translation 279 95901 523 minimum transport cost 279 95902 10232 bit-wise sequence 279 95903 518 time 278 95904 10146 dictionary 278 95905 735 dart-a-mania 277 96906 10557 xyzzy 277 96907 10562 undraw the trees 277 96908 10759 dice throwing 276 96909 410 station balance 275 96910 10187 from dusk till dawn 275 96911 11058 encoding 275 96912 10043 chainsaw massacre 274 97913 10263 railway 274 97914 11093 just finish it up 274 97915 452 project scheduling 273 97916 10257 dick and jane 273 97917 10634 say no to memorization 273 97918 10716 evil straw warts live 273 97919 375 inscribed circles and isosceles triangles 272 97920 10787 modular equations 272 97921 10792 the laurel-hardy story 272 97922 10823 of circles and squares 272 97923 10510 cactus 271 98924 10328 coin toss 270 98925 603 parking lot 269 98926 10964 strange planet 269 98927 308 tin cutter 268 99928 604 the boggle game 267 99929 10668 expanding rods 267 99930 178 shuffling patience 266 100931 433 bank (not quite o.c.r.) 266 100932 10419 sum-up the primes 266 100933 10666 the eurocup is here! 266 100934 10733 the colored cubes 266 100935 10396 vampire numbers 265 100936 10855 rotated square 265 100937 211 the domino effect 264 100938 613 numbers that count 264 100939 10495 conic distance 264 100940 10626 buying coke 264 100941 10902 pick-up sticks 264 100942 11110 equidivisions 264 100943 198 peter's calculator 263 101944 10917 walk through the forest 263 101945 592 island of logic 262 101946 10814 simplifying fractions 262 101947 837 light and transparencies 261 101948 10111 find the winning move 261 101949 10428 the roots 261 101950 11029 leading and trailing 261 101951 11221 magic square palindromes. 261 101952 10039 railroads 259 102953 158 calendar 258 103954 852 deciding victory in go 258 103955 10505 montesco vs capuleto 258 103956 10350 liftless eme 257 103957 10567 helping fill bates 257 103958 10816 travel in desert 257 103959 10827 maximum sum on a torus 257 103960 10318 security panel 256 103961 11100 the trip, 962 599 the forrest for the trees 255 104963 10439 temple of dune 254 104964 230 borrowers 253 105965 10804 gopher strategy 253 105966 10898 combo deal 253 105967 395 board silly 252 105968 671 spell checker 252 105969 11038 how many o's? 252 105970 11055 homogeneous squares 252 105971 745 numeric puzzles again! 251 106972 10874 segments 251 106973 948 fibonaccimal base 250 106974 10278 fire station 248 107975 10843 anne's game 248 107976 174 strategy 246 108977 257 palinwords 246 108978 561 jackpot 246 108979 845 gas station numbers 245 108980 10316 airline hub 245 108981 10506 the ouroboros problem 245 108982 487 boggle blitz 244 109983 10040 ouroboros snake 244 109984 303 pipe 243 109985 307 sticks 243 109986 10246 asterix and obelix 243 109987 974 kaprekar numbers 242 109988 10688 the poor giant 242 109989 563 crimewave 241 110990 10560 minimum weight 241 110991 11026 a grouping problem 241 110992 759 the return of the roman empire 240 110993 10504 hidden squares 240 110994 11133 eigensequence 240 110995 10980 lowest price in town 238 111996 405 message routing 237 112997 10317 equating equations 237 112998 10357 playball !!! 237 112999 10547 hidden truth in recurrence 237 112 robbery 236 112 let's dance !!! 235 113 folding my t-shirt 235 113 beverages 235 113 spreadsheet calculator 234 113 moscow time 234 113 airline comparison 234 113 the largest/smallest box ... 234 113 synchronous design 233 114 puzzle (ii) 233 114 nuts for nuts.. 232 114 towards zero 232 114 the orc attack 231 115 can of beans 231 115 test the rods 230 115 super lucky numbers 230 115 dominant strings 230 115 the sum equals the product 229 116 ferry loading iii 229 116 eight 228 116 square root 228 116 watching watches 228 116 subway 228 116 critical wave 228 116 so you want to be a 2n-aire? 228 116 war on weather 228 116 wff 'n proof 228 116 enigmatic encryption 227 117 antenna placement 227 117 kites 227 117 mobile destroyer 226 117 trouble of 13-dots 226 117 maximum sub-sequence product 225 118 rope crisis in ropeland! 225 118 coupons 225 118 contemplation - algebra 225 118 cat and mouse 224 118 fire! fire!! fire!!! 224 118 doing windows 222 119 basic wall maze 222 119 tautology 222 119 race tracks 220 120 enchanted forest 220 120 password search 219 121 the toll! revisited 219 121 chinese shuffle 219 121 string factoring 219 121 double trouble 218 121 gangsters 218 121 the most distant state 218 121 can you decide it for me? 218 121 cube in the labirint 217 122 bean counting 217 122 shooter 217 122 it's not a bug, it's a feature! 216 123 decode 216 123 combinatorial expression 216 123 is there a second way left? 216 123 russian dolls 216 123 peter takes a tramway 215 123 the hybrid knight 215 123 sunrise 214 124 modern art 214 124 yahtzee 214 124 cow trouble! help please!! 214 124 bonus bonds 213 124 automorphic numbers 213 124 traffic 213 124 the tree root 213 124 meeting with aliens 213 124 find the latitude 213 124 god! save me 213 124 number of paths 213 124 ferry loading iv 213 124 curling up the cube 212 125 can't be too greedy 212 125 another new function 212 125 jumping champion 211 126 flowers of a beautiful mind 211 126 automatic correction of misspellings 211 126 a puzzling problem 210 126 free candies 210 126 complex numbers 210 126 black and white painting 210 126 poker solitaire evaluator 209 127 duathlon 209 127 crime wave - the sequel 209 127 bounding box 208 127 travelling distance 208 127 berry picking 207 128 crosswords (ii) 206 129 boastin' red socks 206 129 make polygon 206 129 stats 205 129 a dicey problem 205 129 always late 205 129 wind of change! 205 129 pillars 205 129 how many solutions? 205 129 reaching the fix-point. 205 129 circles in triangle 204 130 the good old times 204 130 autofish 203 130 expressions 203 130 help the leaders 203 130 maximal quadrilateral 203 130 optimal programs 202 131 cheapest way 201 132 fractal 201 132 broken keyboard 201 132 sentence/phrase generator 200 132 citizen attention offices 200 132 expression again 200 132 changing roadmap 200 132 base64 decoding 199 133 swimming gopher 199 133 flea circus 199 133 end up with more teams 199 133 glass beads 198 134 big big real numbers 198 134 dna sequencing 197 134 loansome car buyer 197 134 billiard bounces 197 134 don't have a cow, dude 196 135 scheduling lectures 196 135 adventure of super mario 196 135 chemical reaction 196 135 triangle partitioning 196 135 bright lights 196 135 trees in a wood. 195 136 multi-peg towers of hanoi 195 136 football sort 195 136 unique factorization 195 136 complete tree labeling 194 137 volleyball 194 137 flipping colors 194 137 the treasure hunt 193 137 submarines 193 137 walking on a grid 193 137 continents 193 137 be efficient 193 137 smallest bounding rectangle 192 138 biometrics 192 138 forcal 191 139 servicing stations 191 139 the ghost of programmers 191 139 sphere 190 139 dropping water balloons 190 139 calling circles 189 140 cdvii 189 140 knights' nightmare 189 140 numbering the paths 189 140 many a little makes a mickle 189 140 triangles 189 140 place the guards 189 140 forests 188 141 contour painting 188 141 centipede collisions 187 142 invitation cards 187 142 a day in math-land 187 142 mayor's posters 187 142 super number 187 142 next same-factored 187 142 tug of war 186 142 expression 186 142 dumb bones 186 142 crabbles 186 142 generalized matrioshkas 186 142 least path cost 185 143 musical instruments 185 143 squares (ii) 184 144 gizilch 184 144 circular 184 144 lex smallest drive 184 144 chocolate chip cookies 183 145 the flyover construction 183 145 difference 182 146 language cardinality 181 146 monitoring the amazon 180 147 help! 180 147 intersecting line segments 179 148 the fibonacci primes 179 148 another counting problem 179 148 mbone 178 149 reflections 178 149 urn-ball probabilities ! 178 149 throw the dice 178 149 guess the number! 178 149 least squares 178 149 the hendrie sequence 177 150 number theory 177 150 the lost gift 177 150 find the permutations 177 150 eeny meeny 176 150 filling the gaps 176 150 gerg's cake 176 150 compression 175 151 count the ewords 175 151 river crossing 175 151 triangle 174 152 processing mx records 174 152k problem 174 152 beautiful points 174 152 abundance and perfect numbers 174 152 cutting up 173 153 street directions 173 153 faucet flow 173 153 bob laptop woolmer and eddie desktop barlow 172 154 the book-shelver's problem 172 154 dice from pennies 172 154 safe salutations 171 155 basic 171 155 divisibility testing 171 155 star not a tree? 170 156 software allocation 169 157 bishops 169 157 treasure map 169 157 bad code 169 157 the fortified forest 168 158 supermean 168 158 integral determinant 167 159 danger point 167 159 intersection is not that easy 167 159 annoying painting tool 167 159 humidex 167 159 bungee jumping 166 160 koerner's pub 166 160 sum of product 166 160 clock solitaire 165 161 test 165 161 flavius josephus reloaded 165 161 ktv 165 161 grocery store 165 161 network wars 164 161 trexpression 164 161 polylops 164 161 calculator 164 161 no tipping 163 162 catenyms 163 162 partitioning for fun and profit 163 162 the optimal super-highway 163 162 the finite state text processing machine 162 163 blocks 162 163 the least possible effort 162 163 antimonotonicity 162 163 another puzzling problem 161 165 big math 161 165 gears on a board 160 166 rearrange 160 166 make palindrome checker 160 166 identifying concurrent events 159 167 equations 159 167 combinatorial summation 159 167 xenosemantics 158 168 chocolate box 157 169 map 157 169 diceoids 157 169 consecutive integers 157 169 cut the legs 155 171 superman 155 171 hyper-drive 155 171 recurrences 155 171 antifloyd 155 171 the valentine's day 154 172 discrete logging 154 172 ascii labyrinth 154 172 the gossipy gossipers gossip gossips 154 172 blackbeard the pirate 154 172 table 153 173 freedom fighter 153 173 antimatter ray clearcutting 153 173 circular lock 153 173 moliu fractions 153 173 help my brother (ii) 153 173 swamp county supervisors 152 174 echo 152 174 the great divide 152 174 mall mania 152 174 urban elevations 151 175 triangle counting 151 175 dihedral groups 151 175 elegant permuted sum 151 175 cylinder 151 175 the vigen&re cipher 150 177 savage garden 150 177 first love !!! 150 177 crazy savages 150 177 opening doors 150 177 function overloading 150 177 cos(na) 150 177 file mapping 149 178 frequent substrings 149 178 nuts and bolts 149 178 little ali's little brother! 149 178 keywords 148 179 magic cube 148 179 planet of the rock, paper and scissors 148 179 movement of reading head 147 180 the brick stops here 147 180 not the best 147 180 troublemakers 147 180 open source 147 180 matching meetings 146 181 palindromic permutation 146 181 letter sequence analysis 145 183 fitting text into slides 145 183 2d-nim 145 183 yoyodyne 145 183 k-multiple free set 145 183 city directions 144 184 gone fishing 144 184 maze 144 184 the silver bullet. 144 184 tour de france 144 184 fifth bank of swamp county 143 185 commedia dell' arte 143 185 hoax or what 143 185 kupellakes bst 143 185 spreading the news 142 187 subway 142 187 lucky number 142 187 defragment 141 188 lost in space 141 188 arif in dhaka (first love part 2) 141 188 big big trees 141 188 entropy text analyzer 140 189 where can you hide? 140 189 the golden pentagon 140 189 babylonian roulette 140 189 pascal program lengths 139 191 cops and robbers 139 191 intersecting circles 139 191 advertisement 139 191 rigid circle packing 139 191 prim, prim. 139 191 sorting slides 138 192 boxes of chocolates again 138 192 tarot scores. 138 192 magic 137 193 cyborg genes 137 193 the strange research 137 193 points 137 193 city navigation 136 195 pattern matching prelims 136 195 hotter colder 136 195 leaps tall buildings (in a single bound) 136 195 dear god, pardon me 136 195 magic car 136 195 councilling 136 195 advanced causal measurements 136 195 nails 136 195 min-max cake 135 196 mountain village 135 196 find the right changes 135 196 genealogical research 135 196 probability|given 134 198 dreisam equations 133 199 manhattan 133 199 new to bangladesh? 133 199 road construction 133 199 warehouse 133 199 eat or not to eat? 132 201 products 132 201 tribles 132 201 triple-free binary strings 132 201 adam's genes 131 202 deciphering messages 131 202 gift exchanging 131 202 floor tiles 131 202 zeroes revisited 131 202 base i-1 131 202 majoring in scales 130 204 king 130 204 ordering 130 204 firemen barracks 130 204 halloween treats 130 204 sandorf's cipher 129 205 the bumpy robot 129 205 snap 129 205 facing problem with trees 129 205 bomb, divide and conquer 129 205 sala-ma-sond, a nice little pond 128 207 jack and jill 127 209 the same game 127 209 board wrapping 127 209 cat 127 209 income tax 127 209 tempus et mobilius. time and motion 126 210 caesar cypher 126 210 n group k 126 210 triangular square 126 210 an antiarithmetic permutation 126 210 power of matrix 126 210 square of primes 125 212 pousse 125 212 data flow 125 212 maximum subsequence 125 212 anagram and multiplication 125 212 seven seas 125 212 variable radix huffman encoding 124 214 taxicab numbers 124 214 repackaging 124 214 the scrooge co problem 124 214 walking around wisely 123 215 string partition 123 215 mirror maze 122 217 spam or not spam 122 217 robots(ii) 122 217 expressions 122 217 simply proportion 121 219 hamiltonian cycle 121 219 cubes 121 219 headmaster's headache 121 219 arrange some marbles 121 219 the broken pedometer 121 219 triangle war 120 221 the uxuhul voting system 120 221 lock manager 119 223 the unreal tournament 119 223 non-powerful subsets 119 223 huge mods 119 223 knights roaming 119 223 placing the ops 118 224 oops! they did it again... 118 224 concatenation of languages 118 224 rectilinear polygon 118 224 pendulum 117 226 tile topology 117 226 euro cup
cricket/football goes down 117 226 euler circuit 117 226 going in circles on alpha centauri 116 228 storage keepers 116 228 the integer all-time champ 116 228 treblecross 116 228 jack and jill 116 228 diatribe against pigeonholes 116 228 signed-digit numbers 116 228 bloques 116 228 frequent values 116 228 series-parallel networks 115 230 suffidromes 115 230 rooks 115 230 cheetah 115 230 romulan spelling 114 232 formatting text 114 232 the programmer's hex 114 232 references 114 232 demerit points 114 232 the lonesome cargo distributor 114 232 iiuc hexworld 114 232 thinking backward 113 234 fabled rooks 113 234 jury compromise 112 236 stamps (ii) 112 236 shark 112 236 liar or not liar that is the... 112 236 coco monkey 112 236 eventually periodic sequence 112 236 wimp 111 239 maze 111 239 the knight's tour 111 239 the gossiping system 111 239 parenthesizing palindromes 111 239 numerical methods! a satire 111 239 index 110 241 the mailbox manufacturers problem 110 241 su doku 110 241 envelopes 110 241 nice milk 110 241 stochastic digit generator 110 241 factors and multiples 110 241 spreadsheet tracking 109 243 test 109 243 the rock 109 243 tri tri 109 243 the partition of a cake 108 245 spiral of numbers 108 245 old wine into new bottles 108 245 the wall pushers 108 245 the eagle's nest 108 245 doves and bombs 108 245 send more money 108 245 treasure hunt 107 248 multinomial coefficients 107 248 a brief gerrymander 107 248 knight on the bee board 106 250 strange integration 106 250 ignoring digits 106 250 winterim backpacking trip 105 252 polygon intersection 105 252 aztec knights 105 252 sqf problems 105 252 rose windows 105 252 dynamic frog 105 252 supercomputer selection, the sequel 104 255 worm world 104 255 divisibility testing! wow! 103 257 the window property 102 260 a duckpin tournament 102 260 unique world 102 260 dora trip 102 260 sapitaur's labyrinth 102 260 single-player games 101 262 magic bitstrings 101 262 card hands 101 262 metal cutting 100 265 whoever-pick-the-last-one-lose 100 265 sum of powers 100 265 circles in hexagon :-) 100 265 snakes 100 265 the pawn chess 100 265 mysterious mountain 99 268 optimal house placement 99 268 rings'n'ropes 99 268 going in cycle!! 99 268 partial differential equations 98 270 substitution cipher 98 270 trains 98 270 the perspectographer 98 270 piotr's ants 98 270 the letter carrier's rounds 97 273 square 97 273 cube 96 276 deadlock detection 96 276 many paths, one destination 96 276 phylogenetic trees inherited 96 276 chessboard 96 276 cockroach escape networks 96 276 playing with coins 96 276 strings 96 276 head judge headache 95 279 up the ante 95 279 cabinets 94 282 the tajmahal of ++y2k 94 282 toroidal chess queens' problem 94 282 the deadly olympic returns!!! 94 282 regular polygon 94 282 how many triangles? 94 282 inventory maintenance 93 285 parallelepiped walk 93 285 equidistance 93 285 working with specific gravity 93 285 kupellakes 93 285 efficient solutions 93 285 cousins 93 285 stars 92 288 intersecting rectangles 92 288 hyper toy soldiers 92 288 garbage heap 92 288 travel 91 291 the curse of barbosa 91 291 prime suspect 91 291 radar scopes 90 294 keeps going and going and ... 90 294 safari holiday 90 294 optimus prime 90 294 don giovanni's last dinner 90 294 medals 90 294 del command 89 298 horse step maze 89 298 unscrambling images 89 298 according to bartjens 89 298 trains 89 298 infinite race 89 298 planarity 89 298 matrix decompressing 89 298 transportation system. 89 298 the problem of the crazy linguist 88 301 blocks on blocks 87 304 circum triangle 87 304-wheeler caravans (aka semigroups) 86 308 right words 86 308 hexagon 85 312 polygonal puzzle 85 312 fmt 85 312 siege 85 312 land surveyor's job 85 312 close relatives 85 312 lakes 84 315 a logical problem 84 315 tv game 84 315 matrix world 84 315 matrix reloaded 84 315 traffic! 84 315 arithmetic operations with large integers 83 319 trial of the millennium 83 319 napoleon's grumble 83 319 colour circles 83 319 integer sequences from addition of terms 83 319 intelligent cats 83 319 financial risk 82 323 the optimal coffee shop!! 82 323 the n-dimensional cities 82 323 midi preprocessing 81 327 quantiser 81 327 computer dialogue 81 327 pit stop strategy 81 327 dreadful vectors 81 327 buy one, get the rest free 81 327 independent attacking zones 81 327 kingdom division 81 327 stand in a line 81 327 l--system 80 331 spatial structures 80 331 tango tango insurrection 80 331 another n-queen problem 80 331 more triangles ... the ambiguous case 79 335 number maze 79 335 audubon's stormy arctic trip 79 335 bigger square please... 79 335 playing with fraction 79 335 menu 79 335 looking for a subset 79 335 zeroes iii 79 335 eternal truths 78 340 a different task 78 340 get straight 78 340 economic phone calls 78 340-20-30 77 344 a major problem 76 348 sunny mountains 76 348 fans and gems 76 348 the absent minded professor 76 348 normal distribution 76 348 series of pi 76 348 mystical matrix 76 348 hot or cold? 76 348 lift hopping in the real world 76 348 joyful ride 76 348 intellectual property 74 358 collectors problem 74 358 fast and easy data compressor 74 358 power signs 74 358 star 73 363 fantastic sequence 73 363 scanner 72 368 of(f) course! 72 368 but we need a diagram 72 368 shogi tournament 72 368 planes around the world 72 368 splat, inc. 72 368 educational journey 72 368 matrix matcher 72 368 tabriz city 72 368 abbott's revenge 71 373 stars 71 373 continuously growing fractions 71 373 titans in danger 70 378 shifted coefficient number system 70 378 barcelona's trams 70 378 qualify for the champions league 70 378 polynomial gcd 70 378 double np-hard 70 378 game 69 384 treequivalence 69 384 be wary of roses 69 384 anagram division 69 384 little quilt 69 384 dead or not -- that is the question 68 389 system dependencies 68 389 localized summing for blurring 68 389 factory robot 68 389 string morphing 68 389 going together 68 389 concurrency simulator 67 395 compress 67 395 numerical summation of a series 67 395 translation or rotation 67 395 make a crystal 67 395 anti-arithmetic-sequence 67 395 coin collector 67 395 meals on wheels routing system 66 401 ransom note 66 401 tic-tac-tough 66 401 babel towers 66 401 switching channels 65 407 polygon puzzler 65 407 points, polygons and containers 65 407 saving the planet 65 407 how many knight placing? 65 407 jill's bike 64 414 domino game 64 414 adventures in moving - part v 64 414 sum-up the primes (ii) 64 414 mushroom misery 64 414 stitching 64 414 a research problem 64 414 structural equivalence 64 414 cutting chains 63 420 fastest vs cheapest 63 420 forr& party 63 420 let's swim! 63 420 game 63 420 ddr king 62 427 matrix 62 427 simplified shisen-sho 62 427 matrix 62 427 pyramid 62 427 euler's totient function 62 427 symbolic numerical system 61 434 constrained exchange sort 61 434 escape from tut's tomb 61 434 gray code 61 434 billiard again 61 434 playing war 61 434 welfare reform 60 441 bingo 60 441 microzoft calendar 60 441 bulk mailing 60 441 chinese checkers 60 441 cricket ranking 60 441 parse tree 60 441 bangladesh sequences 60 441 paper folding 60 441 tangents 60 441 placing lampposts 60 441 standard deviation 60 441 art gallery 60 441 predator ii 60 441 poor my problem! :-( 60 441 innoumerous bowling games 60 441 solving systems of linear equations 59 449 the four in one stadium 59 449 count the numbers 59 449 pablito nailed a nail 59 449 prisoners, boxes and pieces of paper 59 449 continuous fractions 58 457 airport 58 457 dancing digits 58 457 fence 57 465 queuing at the doctors 57 465 great circle 57 465 words adjustment 57 465 troubles for modern days problemsetters 57 465 museums 57 465 numerical maze 56 473d representations 56 473 overlapping rectangles 56 473 normals 56 473 go 56 473 coloring the map, but not anyhow 56 473 improved tic-tac-toe. 56 473 the trip ii 55 482 the story of two coins 55 482 the maximum term 55 482 odd root sum 55 482 setting problems 55 482 inviting politicians 54 490 barisal stadium 54 490 practice 54 490 cutting a polygon 54 490 brownie points ii 54 490 the party, part ii 54 490 khepel's problem 54 490 texas trip 54 490 html syntax checking 53 500 another game of tetris 53 500 the gift wrappers of hollywood 53 500 mars buggy 53 500 morley's theorem 53 500 repetitive multiple 53 500 gaston 52 509 document validator 52 509 permutation representation 52 509 counting trapizoid 52 509 popes 51 519 martin the gardener 51 519 chasing after don giovanni 51 519 bishops 51 519 follow the folding dot 50 530 re-connecting computer sites 50 530 how many? 50 530 meta editor 50 530 very funny mr. feynman 50 530 ray inside a polygon 49 541 basic tautologies 49 541 square counting 49 541 coin changing again 49 541 ascii mandelbrot 48 552 horizon line 48 552 return of the jedi 48 552 happiness 48 552 rinse 48 552 weird fence 48 552 organising the organisation 47 564 ants, aphids and a ladybug 47 564 galactic travel 47 564 buddy memory allocator 46 576 dvd subtitles 46 576 loan (ii) 46 576 gaussian primes 46 576 the predator 46 576 series of powers 46 576 raucous rockers 45 589 schedule of taiwan baseball league 45 589 hole cutter 45 589 surveying 45 589 a square and equilateral triangles 45 589 peaceful sharing 45 589 halting factor replacement systems 44 602 parallel deadlock 44 602 lead or gold 44 602 travelling in another dimension 44 602 maze statistics 44 602 life forms 44 602 faulty computer 44 602 s.o.s. 44 602 word search wonder 43 616 crossword puzzles 43 616 happy numbers 43 616 back to kernighan-ritchie 43 616 persephone 43 616 wheel good 43 616 winning streak 43 616 code generation 42 631 circuit nets 42 631 round and round maze 42 631 legendary pokemon 42 631 semi-triangular and also square 42 631 triangle covering 42 631 text formalization 42 631 aragorn 42 631 rename 41 646 pentominos 41 646 snake 41 646 the falling pillars 41 646 find the point 41 646 distant jumping 41 646 a greener world 41 646 from d to e and back 41 646 fractal 41 646 mohr's circle 40 662 automobile travelling 40 662 relaxed golf 40 662 monkeys in the emei mountain 40 662 dining diplomats 39 679 image recognizer 39 679 bridge building 39 679 right hand rule 39 679 continuous drawing 39 679 monitoring wheelchair patients 38 697 character decoding 38 697 triangular museum 38 697 queue and a 38 697 a pile of boxes 38 697 master mind helper 38 697 help my brother 38 697 counting patterns 37 716 horse shoe scoring 37 716 grid soccer 37 716 petri net simulation 37 716 offset polygons 37 716 diving for gold 37 716 show the sequence 37 716 grid points 37 716 creating sudoku puzzles 37 716 the great escape 37 716 a gentlemen's agreement 37 716 water crisis 37 716 theseus and the minotaur (ii) 36 736 logic 36 736 scrabble 36 736 rotating tetris pieces 36 736 super divisible numbers 36 736 saskatchewan 36 736 necklace 36 736 transferable voting 35 757 grid speed 35 757 journey 35 757 rational resistors 35 757 lunar forest 35 757 kids in a grid 35 757 teen girl squad 35 757 bullet hole 34 779 gifts large and small 34 779 karpovich blocks 34 779 the mosquito killer mosquitos 34 779 farewell, my friend 34 779 dueue's quiz 34 779 mr. and mrs. hamilton 34 779 chinese mahjong 34 779 crosswords 33 803 a very nasty text formatter 33 803 no more prerequisites, please! 33 803 herding frosh 33 803 denki blocks 33 803 editing a book 33 803 wild thing 32 828 evaluating an equations board 32 828 scatter point plot 32 828 rational neighbor 32 828 powerful magic squares 32 828 working with small numbers 32 828 stamping out stamps 31 854 magic of david copperfield 31 854 stopper stumper 31 854 sokoban 31 854 mini cube 31 854 equations 31 854 postscript emulation 30 883 overlapping air traffic control zones 30 883 revenge of faucet flow 30 883 polygon encoder 30 883 sex assignments and breeding experiments 29 913 stack of cylinders 29 913 lemmings battle! 29 913 mines for diamonds 29 913 the difference engine 29 913 moonshine 29 913 guarding the chessboard 29 913 take me home (to the place i belong) 29 913 reliable network 29 913 golygons 28 946 bits 28 946 bowl 28 946 maze (ii) 28 946 quadrills 28 946 subway 28 946 revolc faelon 28 946 point of view in flatland 28 946 nondeterministic trellis automata 27 981 top dog 27 981 black & white 27 981 shovelling snow 27 981 construct the wall maze 27 981 getting there 26 1019 train time 26 1019 random number 26 1019 syntrax 26 1019 new horizons 26 1019 l-gap substrings 26 1019 sms 26 1019 fighting against a polygonal monster 26 1019 the hire-a-coder business model 26 1019 fatman 25 1059 the abominable triangleman 25 1059 numbers and operations 25 1059 lattice practices 24 1104 painting with cse 24 1104 deal or no deal 24 1104 bit stream 24 1104 birthday cake 24 1104 polygon visibility 23 1152 cube 23 1152 compare directories 23 1152 sweet dream 23 1152 geometry once again 23 1152 how many numbers? 23 1152 morse code generation 22 1204 particles 22 1204 hardnumbers 22 1204 be together again and forever 22 1204 new marketing plan 22 1204 codebreakers 21 1261 robot 21 1261 live from mars 21 1261 from g to h and back 21 1261 insurrection 21 1261 use of hospital facilities 20 1324 rating 20 1324 spaghetti 20 1324 green eggs and ham 20 1324 collage 20 1324 running lights visibility calculator 19 1394 flight planning 19 1394 tacos panchita 19 1394 the incredible pile machine 19 1394 x-express 19 1394 battle ii 19 1394 a simple pendulum 19 1394 stone grid 19 1394 ships 18 1471 two way traffic 18 1471 towers of powers 18 1471 worse code 18 1471 loan 18 1471 three pigs 18 1471 exponential function 18 1471 gopher that walks and swims 18 1471 fractions 18 1471 robot crash 17 1558 bang the drum slowly 17 1558 department 17 1558 straightest paths 17 1558 tile puzzle 17 1558 almost balanced trees 17 1558 origami 17 1558 multisets and sequences 17 1558 chemical attraction 17 1558 infinix 17 1558 pga tour prize money 16 1655 the rotating disk 16 1655 the gourmet club 16 1655 comment removal 16 1655 named extension dialing 16 1655 revolutionary calendar 16 1655 islands 16 1655 the richest man of the universe 16 1655 treasure castle 16 1655 reading time from a clock 16 1655 pattern transformations 16 1655 quarter-finals with brazil!? no!!! 16 1655 what's the time? 16 1655 minesweeper ii 16 1655 jaguar king 16 1655 classifying lots in a subdivision 15 1766 presentation error 15 1766 scheme pretty-printing 15 1766 the bitpack data compression problem 15 1766 a word puzzle in the sunny mountains 15 1766 rectangle by the ocean 15 1766 fold-up patterns 15 1766 stretching geometry 15 1766 sugar cubes 15 1766 package pricing 14 1892 hares and foxes 14 1892 counting quadrilaterals 14 1892 find the sequence 13 2037 truckin' 13 2037 counting rna sequences 13 2037 the sultan's problem 13 2037 typesetting 12 2207 rubik's cube 12 2207 pipeline scheduling 12 2207 triangle partition 12 2207 telephone directory alphabetization 12 2207 donkey 12 2207 getaway 12 2207 uno game 12 2207 tetravex solver 12 2207 car rallying 12 2207 systematic cyclic redundancy check codes 12 2207 maternity 12 2207 square puzzle 12 2207 cutting corners 11 2408 machine repair simulation 11 2408 radar tracking 11 2408 interpreting old maps 11 2408 customer service cost evaluation 11 2408 optimal mastermind strategy 11 2408 security by ambiguity 11 2408 radio direction finder 10 2649 spin 10 2649 milk bottle data 10 2649 tweedle numbers 10 2649 the minimum slot machine 10 2649 sail race 9 2943 crazy calculator 9 2943 working with relations 9 2943 one against many 9 2943 gutenberg clumsy helper 9 2943 easter eggs 9 2943 polynomial factorization 8 3311 euro 1 cutting polyominoes 8 3311 a homer's holiday 8 3311 finding haplotypes 8 3311 queen vs rook 8 3311 playfair cipher 8 3311 juggling trams 7 3784 custom language 7 3784 the guessing game 7 3784 mathemagicland 7 3784 multi-stage compressor 6 4414 avrenim 6 4414 an octal world 6 4414 equations in disguise 6 4414 department of redundancy department 5 5297 the pieces of the puzzle 5 5297 millennium ceremony 5 5297 subtitles 5 5297 digital racing circuit 4 6621 old west rumours 4 6621 prince frog ii 4 6621 the ridiculous game 4 6621 digital logic 4 6621 building construction 3 8828 flipull 3 8828 frequency hopping 3 8828 ambiguous or incomplete inductive definitions 2 13243 the hazard of cse department! 2 13243 interpreting sql 2 13243 3kp-bash project 2 13243 vtas - vessel traffic advisory service 1 26485 process scheduling 1 26485 board game 1 26485 global positioning system 1 26485 the crusades 1 26485 nested rectangles 1 26485 kissin' cousins 0 impossible resource allocation 0 impossible trucking 0 impossible text comparsion 0 impossible ``cheapest'' scores 0 impossible don't get hives from this one! 0 impossible approximate matches 0 impossible constitutional computing 0 impossible indexing web pages 0 impossible whatfix notation 0 impossible robotic stacker 0 impossible the reservation maker 0 impossible nasty virus 0 impossible simultaneous equations 0 impossible irrigation flow rates 0 impossible tempus fugit 0 impossible morse mismatches 0 impossible raid! 0 impossible optimal routing 0 impossible do you know the way to san jose? 0 impossible window frames 0 impossible schedule problem 0 impossible the problem of train setout 0 impossible randomly wired neural nets 0 impossible the incredible hull 0 impossible last name first, please 0 impossible you who? 0 impossible convex hull of the polygon 0 impossible calculating expressions on turing machine 0 impossible reverse 0 impossible transform those strings 0 impossible crossword 0 impossible puncher 0 impossible flying stars 0 impossible divide et unita 0 impossible the justapox language 0 impossible driving in city squares 0 impossible recording a tape 0 impossible wily hacker's problem 0 impossible sentence generator 0 impossible optimisation 0 impossible one day tours 0 impossible indexing 0 impossible term reductions 0 impossible program modules 0 impossible crystal clear 0 impossible page selection by keyword matching 0 impossible polygon intersections 0 impossible storing images in a sequence 0 impossible monopoly 0 impossible balanced expressions 0 impossible from databases to xml 0 impossible dividing land 0 impossible polynomial roots 0 impossible the probable n-ascendants 0 impossible checking the n-queens problem 0 impossible water flow 0 impossible overlapping areas 0 impossible smart strategy 0 impossible mars for sale 0 impossible kriss kross puzzle 0 impossible gilix 0 impossible genes 0 impossible autobiographical numbers 0 impossible permutations 0 impossible cyclic numbers 0 impossible number format translator 0 impossible loading a cargo ship 0 impossible spelling corrector 0 impossible police road blocks 0 impossible lost inheritances 0 impossible constellations 0 impossible alienalgebra 0 impossible towers 0 impossible pop 0 impossible dendogram 0 impossible book signatures 0 impossible a strange opera house 0 impossible airplane scheduling 0 impossible irrigation 0 impossible jewel magnetizer 0 impossible
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