list of classical problems


ID NAME QUALITY USERS ACC % DIFFICULTY C I
9032 Cube Free Numbers   66 4167 31.77
12
11
9034 Help Tohu   12 2317 45.36
5
23
9038 Chessboard Billiard   54 26.56
9040 Tug of War   12 623 25.80
9
21
9042 HQNP Incomputable   4 48 33.33
1
9
9046 Clock Hands   2 378 22.32
34
26
9050 Tohu again   2 865 29.24
17
12
9055 Most Frequent Value   31 823 23.65
15
21
9063 Shuffling cards   16 28.92
9066 Sum of Distinct Numbers   26 360 14.77
32
32
9070 Lightning Conductor   3 688 34.93
9
17
9076 Hablu and Bablu   1 160 18.76
12
17
9081 Snail family problems   2 85 23.48
34
17
9084 Journey to Mars   107 23.68
9086 Formula 3D   6 9.86
9096 Bob and magical scale   3 73 26.03
26
34
9097 Derangements HARD   1 120 50.00
1
17
9098 Long Common Subsequence   2 199 36.64
34
17
9103 Special Numbers   8 759 30.05
14
16
9104 Match the words   3 418 50.39
9
17
9117 Faculty Dividing Powers   11 375 22.55
17
17
9118 Genetic Fraud   152 29.47
9119 Indiana Jones and the lost Soccer Cup   8 378 29.07
11
13
9120 Magic Star   2 174 52.72
34
1
9121 Magical Crafting   58 46.94
9122 Diary   4 1066 35.71
12
3
9123 Security Zone   39 27.45
9124 Sightseeing   120 17.92
9125 Suiting Weavers   91 29.52
9126 Time to live   48 2058 37.70
12
15
9137 Pyramid Sums   96 35.60
34
17
9138 Pyramid Sums 2   2 114 33.61
23
34
9161 Legendre symbol   190 45.42
9
9
9185 TORNJEVI   10 224 33.41
26
26
9199 Circular Track   30 3351 40.29
7
14
9213 Mafia   2 53 23.93
17
26
9219 Nikhil Problem   2 225 45.88
17
17
9331 DCD   64 52.07
17
1
9334 Point in tetrahedron   2 141 57.59
9
17
9340 Arbitrage   37 1951 39.51
12
17
9367 Segment Flip   1 89 10.64
34
34
9378 Landfill   70 42.44
9382 Complan Carnival   41 34.62
9385 Strictly not a Prime   9 370 28.68
17
12
9386 Re-Arrange II   9 278 44.33
21
17
9387 Special String   11 1113 39.63
6
19
9430 The game of 31   165 39.30
13
17
9433 Buzzwords   1 87 32.21
26
26
9434 New Horizons   11 31.75
9440 To Add or to Multiply   19 16.26

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