list of classical problems


ID NAME QUALITY USERS ACC % DIFFICULTY C I
912 Submatrix of submatrix   1 169 26.50
34
17
913 Query on a tree II   117 4653 20.83
23
21
944 Free Tour   16 3.19
962 Intergalactic Map   2 566 23.40
19
28
964 Entrapment   6 339 23.97
17
24
967 Parking Bay   3 562 48.85
12
23
972 Birthday   121 18.47
17
17
987 Mobile   70 15.35
17
17
996 Continuous Fractions   1 278 37.45
9
9
999 Generalized Matrioshkas   417 32.59
1000 Equidivisions   -1 650 23.47
13
13
1001 Babylonian Roulette   1 666 50.40
13
13
1002 Uncle Jack   13 2969 39.67
9
8
1003 Little Quilt   3 170 40.00
21
11
1004 Polygon Encoder   60 10.75
17
1
1021 Aibohphobia   310 10687 36.21
12
17
1022 Angels and Devils   6 671 31.10
26
25
1024 Complete Chess Boards   2 535 54.96
17
20
1025 Fashion Shows   30 27800 46.40
3
3
1026 Favorite Dice   42 5440 63.75
4
21
1027 Fool the Police   25 1647 27.04
18
23
1028 Hubulullu   61 8247 58.73
2
15
1029 Matrix Summation   53 3508 20.08
15
18
1030 Triple Fat Ladies   106 19178 51.78
4
12
1031 Up Subsequence   2 729 32.58
15
10
1043 Can you answer these queries I   567 14099 18.92
25
24
1108 Card Trick   68 2222 50.39
21
24
1110 Sudoku   4 513 39.36
34
1
1112 Number Steps   84 34084 43.04
4
4
1161 Tic-Tac-Toe ( I )   20 3351 22.85
12
11
1162 Tic-Tac-Toe ( II )   8 2389 30.36
17
10
1163 Java vs C ++   17 5520 22.87
14
5
1166 Dead Fraction   320 23.26
12
17
1167 Move To Invert   13 2454 31.79
8
16
1182 Sorted bit squence   293 42.05
17
1
1183 Accomodate the palace   4 553 52.68
17
34
1267 Origin of Life   37 24.12
34
1
1268 CN Tower (Easy)   3 1115 30.67
8
6
1269 CN Tower (Hard)   23 10.98
34
34
1270 Paint By Numbers   22 21.30
1285 Continuous Fractions Again   5 375 41.86
15
10
1296 4 values whose sum is 0   64 5106 24.90
18
14
1325 Partial Sums   2 225 24.92
9
1
1326 A Chase In WonderLand   2 407 13.51
6
1
1329 Matrix   6 411 17.19
28
26
1335 Maze   64 17.71
17
17
1391 Summing to a Square Prime   16 1422 54.00
12
17
1418 The Cats and the Mouse   55 2980 33.72
10
12
1419 A Game with Numbers   118 12065 61.54
3
10
1420 Geometry and a Square   1 271 33.90
9
17

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