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list of classical problems


ID NAME QUALITY USERS ACC % DIFFICULTY C I
4060 A game with probability   210 22.15
4053 Card Sorting   26 696 43.66
22
27
4052 Game   75 29.27
4038 Counting The Way of Bracket Replacement   7 440 38.68
26
21
4036 Cuckoo Hashing   3 152 27.39
17
6
4035 NERED   2 395 57.76
9
13
4034 Pizza Delivery   53 16.51
4033 Phone List   151 7332 31.82
16
14
4031 Mass of Molecule   29 2611 48.18
12
9
4021 Bipalindrome   183 30.77
4010 Chặt cây   11 22.58
4008 Con Voi   9 57.69
4004 Exploding CPU   146 46.49
4003 Subway planning   43 18.68
4000 GALLUP   1 70 46.54
17
34
3999 FROGGER   3 104 26.72
28
23
3983 Right Triangle Counting   3 190 17.72
30
21
3982 String problem   7 608 48.82
9
23
3981 Shortest Regular Bracket   82 33.78
3980 Point Visible   1 48 27.40
34
50
3979 Whirligig number   8 1030 38.07
10
15
3978 Distance Query   71 1952 33.23
24
21
3977 Police Query   8 302 17.37
27
30
3975 Most Servings Meal   8 354 26.37
28
28
3974 Another Tree Problem   7 647 32.53
15
23
3973 0 0 Pairs   4 806 27.34
15
15
3972 Stargates   49 14.12
3970 Convert to Decimal Base System   56 37.34
17
17
3969 M&M Game   12 1319 42.34
4
17
3965 Minimax Triangulation   60 40.00
3964 Investment Money   15 627 25.73
16
17
3962 ELEVATOR II   2 101 43.31
9
26
3961 Journey with Pigs   133 41.31
3953 Paid Roads   8 261 27.57
19
26
3948 Polynomial Evaluation - Angry Teacher   -1 31 15.10
50
50
3946 K-th Number   243 5822 35.39
25
27
3944 Bee Walk   19 1434 56.39
12
15
3943 Nested Dolls   31 1239 23.66
20
27
3942 Cleaning Robot   34 65.28
3941 Kth Shortest Path   25 24.30
3940 Sum of Primes   3 237 63.91
9
9
3939 Search of Concatenated Strings   28 24.40
3937 Wooden Sticks   9 681 36.97
23
28
3936 Repair City Hall   4 248 50.82
5
1
3935 SHIFT Operator on Matrix   191 42.38
3934 Recaman’s Sequence   25 3536 53.87
9
6
3933 Minimum Permutation   6 187 38.34
12
17
3932 Point Connection Game in a Circle   3 768 35.47
13
21
3931 Maximum Triangle Area   2 283 29.27
5
28
3930 Group Partition   1 71 30.23
34
34

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