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list of classical problems (unsolved)


ID NAME QUALITY USERS ACC % DIFFICULTY C I
376 A concrete simulation   15 1735 34.38
11
12
23861 Fingerprints   -4 269 34.41
6
3
735 Minimum Diameter Spanning Tree   1 199 34.41
17
30
17394 Bits Game   50 34.44
1
34
21061 Yet Another Subset Sum Problem   2 48 34.44
50
50
30893 Sabbir and Game   14 810 34.45
5
8
12236 Cloud Computing   39 34.46
19545 Black and White beads   1 248 34.47
26
26
9934 Alice and Bob   1 163 34.48
9
34
27303 Count Doubles   3 629 34.48
7
5
9587 The Prime conjecture   5 574 34.49
9
9
33263 Ada and Tomel   3 42 34.51
28
28
6408 Counting Triangles 2   -1 66 34.52
50
50
4311 Quasi-template   62 34.52
29431 Counting WOW-Substrings   12 149 34.56
10
17
5917 Factorial length   11 3478 34.57
5
17
25158 Star   15 314 34.60
12
19
9935 Break the Chocolate   16 1659 34.61
4
17
21615 Playing with GCD   21 1035 34.61
12
14
9382 Complan Carnival   41 34.62
598 Increasing Subsequences   148 34.62
34
34
8594 Tails all the way   293 34.63
82 Easy Problem   4 508 34.70
17
9
30735 Ada and Island   18 628 34.71
13
12
15961 MAXSET   1 48 34.74
17
17
16277 Little Red-Cap   4 225 34.75
24
24
10500 Haybale stacking   24 4041 34.76
9
14
4361 Connected Points   13 34.78
10571 Soccer Challenge   30 34.78
14839 Boxdropper   21 34.78
17
17
18521 Fortunate Wheels   7 34.78
10931 Online Bridge Searching   5 109 34.79
34
34
7100 Back To The Polygon   88 34.80
33048 Find Linear Recurrence   4 24 34.80
42
50
11521 Dominant Strings   78 34.81
7561 Lexicographic position   1 36 34.81
42
26
7212 Find String Roots   39 2181 34.82
12
15
16410 Organizator   80 34.82
14175 Power Factor Sum Sum (hard)   5 44 34.82
26
26
15506 Helping Igor   5 102 34.84
15
12
16211 Boring Factorials   34 1915 34.84
12
17
15557 Partition the sticks   4 110 34.84
23
17
1843 Leonardo Notebook   3 382 34.85
17
34
10394 Buying Apples!   73 5616 34.86
12
14
13046 The Glittering Caves of Aglarond   6 919 34.88
5
12
11580 A Famous Game   409 34.93
28
28
2883 Widget Factory   2 168 34.93
26
26
9070 Lightning Conductor   3 688 34.93
9
17
5163 Tower of Vientiane   105 34.94
382 Decorate the wall   216 34.95
1
17

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