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list of classical problems


ID NAME QUALITY USERS ACC % DIFFICULTY C I
6477 Bowling   3 518 28.50
8
11
6726 Goldbach graphs   3 30 56.76
17
17
6805 Counter attack   3 173 60.53
17
17
6956 IOI2009 Mecho   3 162 18.09
28
23
7022 Cow Patterns   3 113 24.53
28
28
7034 Crashing Robots   3 160 46.29
17
1
7239 Cells   3 74 44.93
17
9
7335 Spheres   3 129 9.55
17
39
7426 Imperial Units   3 498 45.86
3
12
7507 Wonderful Randomized Sum   3 370 40.39
1
1
7696 Encryption   3 974 36.05
17
17
7709 Jumping Zippy   3 64 55.34
26
34
7753 Happy Numbers II   3 647 15.91
23
17
7761 Jollo   3 394 40.05
17
9
7805 Kitchen Robot   3 88 31.90
9
9
7859 Upper Right King (Hard)   3 165 36.85
26
34
7881 Ljutnja   3 637 24.24
34
21
7969 A Knights’ Tale   3 76 23.33
17
17
8044 Fantastic Discovery   3 306 42.60
14
14
8075 Sequence   3 57 27.73
39
39
8105 Dot Product Maximization   3 71 17.33
17
17
8263 Big Pyramid   3 45 59.76
23
23
8277 Number of Prime Strings   3 87 18.91
23
28
8409 Favorite Sub Hair   3 95 41.55
26
26
8668 THE BLACK AND WHITE QUEENS   3 81 45.86
21
34
8720 Looks like Nim - but it is not   3 90 21.35
6
28
8757 Coing tossing   3 160 61.56
12
34
8820 Okret   3 40 19.42
39
34
8839 Longest Common Difference Subsequence   3 72 24.81
34
39
8842 Boring Homework   3 153 42.54
17
17
8895 Power Crisis   3 441 33.98
17
13
8930 Party!   3 61 18.55
17
34
8989 Funny programming contest   3 33 24.28
12
23
8991 Number Guessing Game 2   3 130 36.76
17
42
9070 Lightning Conductor   3 490 30.62
9
17
9096 Bob and magical scale   3 65 25.46
26
34
9104 Match the words   3 410 50.04
9
17
9255 Publication   3 38 61.63
23
17
9640 Equilibrium   3 249 28.16
9
9
9760 Indomie   3 108 47.02
26
26
10114 Remoteland   3 128 56.36
34
28
10328 TRIVIADOR   3 170 31.13
13
17
10346 Streets of distortion   3 108 37.50
6
12
10354 Count Strings   3 17 7.98
39
39
10416 Van Helsings gun   3 1419 54.06
6
13
10424 To Poland   3 266 30.76
17
6
10452 Caprica Cities   3 161 38.35
26
17
10519 K12-Bored of Suffixes and Prefixes   3 91 42.64
26
26
10612 Funny Areas   3 89 32.79
34
34
10725 String Subsequence   3 72 17.29
26
26

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