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list of classical problems (unsolved)


ID NAME QUALITY USERS ACC % DIFFICULTY C I
15266 III Powers   4 131 63.12
20
22
28784 IIITM Student   6 98 53.29
13
15
2661 Illumination   10 4.44
904 Image Perimeters   3 335 59.38
17
17
1963 Image Projections   109 34.26
8849 Imitation   28 24.82
7426 Imperial Units   3 506 45.76
3
12
9644 Imperialism   5 174 30.69
8
14
16210 Impossible Boss   10 180 21.68
21
22
34886 Impress zing   6 111 23.88
26
22
19991 In case of failure   3 136 40.19
34
34
1786 In Danger   49 4395 53.61
7
13
34370 Incomplete hierarchy   21 11.59
1
17
27321 Increasing numbers   17 588 23.87
13
19
6221 Increasing Powers of K   4 360 27.59
24
34
21187 Increasing Shortest Path   2 34 20.25
26
34
598 Increasing Subsequences   148 34.62
34
34
2815 Increasing Subsequences   53 2184 28.16
15
22
2421 Incrementing The Integer   1 53 24.29
17
50
901 Index Generation   43 54.26
17
1
13815 India in Box   26 15.77
9119 Indiana Jones and the lost Soccer Cup   8 378 29.07
11
13
7109 Indicator of progression   2 325 23.89
17
17
9760 Indomie   3 112 47.90
26
26
25476 Induced favoritism   1 47 29.65
17
34
19150 Infinite Sequence   1 154 30.20
1
34
7763 Ingenious Metro   84 66.84
18187 Ingredients   10 295 31.69
21
23
27683 Inquire   12 764 54.72
6
4
28463 Insect invasion   1 21 9.90
34
34
9722 Insertion Sort   28 4082 31.43
12
12
1881 Instruction Decoder   2 668 50.81
17
17
4942 Integer Factorization (15 digits)   45 3695 32.76
11
11
4941 Integer Factorization (20 digits)   8 614 55.35
34
30
4948 Integer Factorization (29 digits)   8 124 14.80
40
34
7192 Integral Maximization   1 375 38.35
50
50
20848 Interesting Game   60 44.68
21418 Interesting Game with Polygons   1 36 28.02
17
34
279 Interesting number   26 846 24.20
19
24
20845 Interesting Numbers   4 221 24.19
13
5
20849 Interesting queries   3 46 34.12
34
34
20846 Interesting Selection   5 130 44.09
13
26
20654 Interesting Subset   5 97 23.84
11
14
11952 Intergalactic Highways   3 152 29.08
17
17
962 Intergalactic Map   2 569 23.41
19
28
2153 Internet is Faulty   69 38.54
40945 Internet Spamming   4 26 27.74
17
17
22331 Intersection Query   1 18 19.85
50
34
5298 Interval Challenge   4 143 16.92
24
27
116 Intervals   5 1200 24.29
21
24

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