list of classical problems


ID NAME QUALITY USERS ACC % DIFFICULTY C I
912 Submatrix of submatrix   1 168 26.35
34
17
913 Query on a tree II   117 4639 20.79
23
21
944 Free Tour   16 3.20
962 Intergalactic Map   2 565 23.38
19
28
964 Entrapment   6 338 23.94
17
24
967 Parking Bay   3 561 48.96
12
23
972 Birthday   120 19.26
17
17
987 Mobile   70 15.50
17
17
996 Continuous Fractions   1 277 37.45
9
9
999 Generalized Matrioshkas   416 32.51
1000 Equidivisions   -1 649 23.45
13
13
1001 Babylonian Roulette   1 665 50.36
13
13
1002 Uncle Jack   13 2968 39.67
9
8
1003 Little Quilt   3 169 39.89
21
11
1004 Polygon Encoder   59 10.71
17
1
1021 Aibohphobia   309 10677 36.20
12
17
1022 Angels and Devils   6 670 31.09
26
25
1024 Complete Chess Boards   2 532 54.81
17
20
1025 Fashion Shows   30 27796 46.40
3
3
1026 Favorite Dice   42 5431 63.79
4
21
1027 Fool the Police   25 1645 27.02
18
23
1028 Hubulullu   61 8245 58.73
2
15
1029 Matrix Summation   53 3507 20.08
15
18
1030 Triple Fat Ladies   106 19173 51.77
4
12
1031 Up Subsequence   2 728 32.60
15
10
1043 Can you answer these queries I   567 14068 18.91
25
24
1108 Card Trick   68 2220 50.38
21
24
1110 Sudoku   4 509 39.36
34
1
1112 Number Steps   84 34078 43.04
4
4
1161 Tic-Tac-Toe ( I )   20 3345 22.87
12
11
1162 Tic-Tac-Toe ( II )   8 2382 30.34
17
10
1163 Java vs C ++   17 5519 22.86
14
5
1166 Dead Fraction   318 23.20
12
17
1167 Move To Invert   13 2453 31.78
8
16
1182 Sorted bit squence   292 42.04
17
1
1183 Accomodate the palace   4 552 52.68
17
34
1267 Origin of Life   35 21.90
34
1
1268 CN Tower (Easy)   3 1113 30.69
8
6
1269 CN Tower (Hard)   23 11.54
34
34
1270 Paint By Numbers   22 21.30
1285 Continuous Fractions Again   5 374 41.81
15
10
1296 4 values whose sum is 0   64 5103 24.89
18
14
1325 Partial Sums   2 224 24.75
9
1
1326 A Chase In WonderLand   2 406 13.48
6
1
1329 Matrix   6 410 17.18
28
26
1335 Maze   64 17.74
17
17
1391 Summing to a Square Prime   16 1421 53.99
12
17
1418 The Cats and the Mouse   55 2977 33.70
10
12
1419 A Game with Numbers   118 12062 61.53
3
10
1420 Geometry and a Square   1 271 33.90
9
17

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