list of classical problems


ID NAME QUALITY USERS ACC % DIFFICULTY C I
6726 Goldbach graphs   3 33 56.10
17
17
6805 Counter attack   3 176 60.91
17
17
6956 IOI2009 Mecho   3 167 18.38
28
23
7022 Cow Patterns   3 125 25.71
28
28
7034 Crashing Robots   3 169 47.87
17
1
7239 Cells   3 80 46.73
17
9
7335 Spheres   3 129 9.54
17
39
7426 Imperial Units   3 505 45.68
3
12
7637 Road Map   3 79 54.90
20
20
7696 Encryption   3 998 35.93
17
17
7709 Jumping Zippy   3 66 53.62
26
34
7753 Happy Numbers II   3 650 15.93
23
17
7761 Jollo   3 396 40.19
17
9
7805 Kitchen Robot   3 89 32.07
9
9
7859 Upper Right King (Hard)   3 167 36.95
26
34
7881 Ljutnja   3 638 24.25
34
21
7882 Tabovi   3 333 49.63
34
34
7969 A Knights’ Tale   3 74 22.79
17
17
8044 Fantastic Discovery   3 311 42.59
14
14
8075 Sequence   3 59 26.91
39
39
8105 Dot Product Maximization   3 77 16.63
17
17
8263 Big Pyramid   3 46 60.24
23
23
8277 Number of Prime Strings   3 100 20.00
23
28
8409 Favorite Sub Hair   3 97 39.06
26
26
8720 Looks like Nim - but it is not   3 91 21.37
6
28
8757 Coing tossing   3 164 61.49
12
34
8839 Longest Common Difference Subsequence   3 73 24.75
34
39
8842 Boring Homework   3 153 42.64
17
17
8895 Power Crisis   3 441 33.86
17
13
8930 Party!   3 61 18.43
17
34
8989 Funny programming contest   3 36 21.63
12
23
8991 Number Guessing Game 2   3 131 36.46
17
42
9070 Lightning Conductor   3 651 34.56
9
17
9096 Bob and magical scale   3 71 25.71
26
34
9104 Match the words   3 415 50.17
9
17
9255 Publication   3 42 61.61
23
17
9503 Working in Beijing   3 642 49.03
6
6
9640 Equilibrium   3 253 28.40
9
9
9760 Indomie   3 112 47.90
26
26
10114 Remoteland   3 135 56.00
34
28
10328 TRIVIADOR   3 173 31.08
13
17
10354 Count Strings   3 27 4.26
39
39
10416 Van Helsings gun   3 1444 54.43
6
15
10424 To Poland   3 268 30.49
17
6
10452 Caprica Cities   3 164 38.26
26
17
10519 K12-Bored of Suffixes and Prefixes   3 95 43.61
26
26
10612 Funny Areas   3 94 32.47
34
34
10725 String Subsequence   3 73 17.36
26
26
10958 Vero Dominoes   3 418 45.29
1
23
11165 Magic Strawberries   3 177 22.45
5
13

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