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list of classical problems (unsolved)


ID NAME QUALITY USERS ACC % DIFFICULTY C I
18966 Vacation Planning   3 142 25.94
17
17
19149 Virus Revisited   2 94 28.65
1
17
19152 Digo Goes Training   1 240 46.18
23
17
19291 Structures   4 137 28.38
11
17
19301 Operators (new ver)   3 47 6.88
38
17
19490 Pair and unpair weightest string   2 84 47.33
9
17
19795 Psycho34 (easy)   7 61 22.81
27
17
19899 Middle Earth   2 51 12.24
26
17
19976 HYPERCUBES   1 122 45.32
1
17
20038 Easiest Loop 1   3 379 48.58
6
17
20041 Hippo and Bloody Jungle   -1 43 21.74
28
17
20637 Ajob Subsequence   78 39.11
1
17
20951 Pebbles   1 74 60.14
1
17
20957 Alia and 3 Khans   1 77 31.54
34
17
20977 Car Game   7 51 33.80
15
17
20980 Chicken Joggers   1 19 41.27
17
17
20987 Sequence   2 31 24.85
9
17
21083 Lexicographically Smallest   14 250 33.20
16
17
21085 Palindrome Merge   1 35 28.24
17
17
21096 Word Counting 2   3 175 29.70
34
17
21170 Constellation of the parallelogram   1 92 26.64
17
17
21177 Distracted judges   6 324 44.91
13
17
21326 Akbar , The great   64 2732 16.05
21
17
21394 Ohani And The Series   4 605 42.18
17
17
21395 Ohani And Binary Search Tree   -1 130 36.05
50
17
21458 Satay Skewer   2 84 28.09
34
17
21525 Red John is Back   5 318 53.38
6
17
21636 Electric Car Rally   1 15 44.90
34
17
21672 Frustrated CR and His Class   3 43 27.69
17
17
21807 Path Finding In the Country   2 103 38.60
9
17
21965 Book Club   1 33 37.11
17
17
21971 The Big Painting   1 48 22.49
34
17
22086 Prime Power Test   2 16 13.55
42
17
22177 RajaRani   3 9 8.33
17
17
22253 Distributing sweets   4 109 21.13
21
17
22271 Periodic function, trip 3   13 52.07
34
17
22303 Mau-Mau   5 78 16.67
36
17
22315 Periodic function, trip 3 (easy)   16 25.71
17
17
22319 Polynomial Table   1 11 28.88
17
17
22343 Norma   2 268 29.01
34
17
22379 Mobile Company 2   3 73 30.70
17
17
22393 KATHTHI   58 2214 33.42
16
17
22532 Cool Problem   1 21 55.32
1
17
22534 Birthday Gift for SJ   4 151 55.45
7
17
22552 Flow on Tree   1 45 40.28
17
17
22784 Pythagorean Triple Counting   4 39 52.76
30
17
23134 Help Me Please!   33 26.90
1
17
23185 Pencil Game   1 24 28.44
17
17
23237 Feast Coins   11 105 41.93
19
17
23351 Hiccup And Lucky Dragons   19 11.65
26
17

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