list of classical problems


ID NAME QUALITY USERS ACC % DIFFICULTY C I
7866 Regular expressions (Hard)   1 96 25.05
28
23
8542 Modern Pocket Calculator   35 9.15
28
6
8591 Prime Permutations   5 105 30.95
28
23
11443 Davids Greed   3 249 26.55
28
19
11580 A Famous Game   382 34.08
28
28
12241 Classification from Erdős and Selfridge   5 27 17.59
28
28
12746 Colorful Circle (EASY)   5 463 20.68
28
23
13367 EVEN COUNT   8 347 22.99
28
19
13738 Happy Valentine Day (Valentine Maze Game)   3 139 36.27
28
23
14928 Pyramidal Constructions   -1 334 49.90
28
23
15190 MAXIMUM RARITY   6 84 33.74
28
34
15769 Enjoy Adding GP to Series   2 60 26.50
28
34
17711 Gopu and Create Collections Part Two   4 260 29.03
28
28
18094 Robert Langdon & Florence   1 175 64.69
28
23
18667 Product of factorials (hard)   3 42 26.61
28
34
19143 TRISQRS   169 38.02
28
34
19148 Kill them All   3 115 22.74
28
34
20041 Hippo and Bloody Jungle   -1 39 19.08
28
17
21642 Tsunami   3 139 40.46
28
23
21834 Sadde and His City   3 45 24.22
28
23
23806 Yossy, The King of IRYUDAT   3 43 5.48
28
39
25001 Red Blue Line Segments   2 260 17.81
28
26
25365 Hexagram   3 33 46.15
28
17
27378 Legend of Heta   2 62 18.33
28
28
31772 Boss Baby   2 8 15.19
28
17
32843 Ada and TicTacToe   3 47 22.63
28
23
32940 Alien Language   2 70 39.44
28
34
34380 Even Semiprime Runs   4 22 63.74
28
28
34549 Mysteriousness of a Logical Expression   7 61 10.49
28
23
34742 Help Robin!!   13 8.47
28
28
237 Sums in a Triangle   -13 3576 42.40
28
10
1702 Cleaning Robot   45 1559 34.19
28
20
4350 Giá trị lớn nhất 3   14 409 23.22
28
19
30755 Ada and GCD   20 436 21.75
28
15
11985 Gao on a tree   26 764 15.08
28
27
1329 Matrix   6 410 17.21
28
26
2059 Robotic Sort   5 658 32.25
28
26
3545 Najkraci   6 181 28.80
28
34
3975 Most Servings Meal   8 350 26.37
28
28
6517 Farmer Sepp   7 331 21.92
28
26
18336 Search Bit Sum   8 163 37.20
28
23
30906 Ada and Unique Vegetable   8 406 34.72
28
24
34975 Prime Friendly Numbers   10 41 19.59
28
26
23963 Easy Factorials   10 112 16.74
27
26
15648 Commando   26 738 32.23
27
34
347 Lazy Cows   4 264 28.55
27
21
1461 Greedy Hydra   3 193 33.50
27
30
2737 Perfect Rhyme   5 357 17.13
27
26
3977 Police Query   8 293 16.98
27
30
10802 Sum of Tetranacci numbers   4 270 38.85
27
21

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