list of classical problems


ID NAME QUALITY USERS ACC % DIFFICULTY C I
912 Submatrix of submatrix   1 166 26.16
34
17
913 Query on a tree II   117 4518 20.66
23
21
944 Free Tour   16 3.23
962 Intergalactic Map   2 564 23.38
19
28
964 Entrapment   6 337 23.90
17
24
967 Parking Bay   3 560 48.99
12
23
972 Birthday   120 19.34
17
17
987 Mobile   70 15.53
17
17
996 Continuous Fractions   1 276 37.43
9
9
999 Generalized Matrioshkas   414 32.46
1000 Equidivisions   -1 646 23.42
13
13
1001 Babylonian Roulette   1 657 50.10
13
13
1002 Uncle Jack   13 2964 39.66
9
8
1003 Little Quilt   3 169 39.89
21
11
1004 Polygon Encoder   55 9.34
17
1
1021 Aibohphobia   309 10646 36.19
12
17
1022 Angels and Devils   6 668 31.09
26
25
1024 Complete Chess Boards   2 530 54.75
17
20
1025 Fashion Shows   30 27717 46.36
3
3
1026 Favorite Dice   42 5375 63.73
4
21
1027 Fool the Police   25 1639 26.97
18
23
1028 Hubulullu   61 8235 58.73
2
15
1029 Matrix Summation   53 3461 20.01
15
18
1030 Triple Fat Ladies   106 19119 51.77
4
12
1031 Up Subsequence   2 727 32.58
15
10
1043 Can you answer these queries I   567 13799 18.77
25
24
1108 Card Trick   68 2198 50.37
21
24
1110 Sudoku   4 481 39.19
34
1
1112 Number Steps   84 33908 43.14
4
4
1161 Tic-Tac-Toe ( I )   20 3309 22.86
12
10
1162 Tic-Tac-Toe ( II )   7 2359 30.34
17
9
1163 Java vs C ++   17 5512 22.85
14
5
1166 Dead Fraction   317 23.27
12
17
1167 Move To Invert   13 2448 31.77
8
16
1182 Sorted bit squence   292 42.04
17
1
1183 Accomodate the palace   4 548 52.46
17
34
1267 Origin of Life   35 22.18
34
1
1268 CN Tower (Easy)   3 1108 30.66
8
6
1269 CN Tower (Hard)   23 11.74
34
34
1270 Paint By Numbers   21 20.96
1285 Continuous Fractions Again   5 371 41.71
15
10
1296 4 values whose sum is 0   64 5075 24.89
18
14
1325 Partial Sums   2 223 24.78
9
1
1326 A Chase In WonderLand   2 405 13.49
6
1
1329 Matrix   6 410 17.17
28
26
1335 Maze   64 17.74
17
17
1391 Summing to a Square Prime   16 1417 54.07
12
17
1418 The Cats and the Mouse   55 2971 33.70
10
12
1419 A Game with Numbers   118 12028 61.56
3
10
1420 Geometry and a Square   1 269 33.87
9
17

Most popular tags