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list of classical problems


ID NAME QUALITY USERS ACC % DIFFICULTY C I
5451 Not So Flat After All   9 1128 42.94
11
10
5452 Hop Do not Walk   2 148 35.23
17
17
5453 Air Strike   2 178 23.78
17
17
5462 Art Plagiarism   13 21.84
5463 Bird or not bird   2 119 38.48
1
17
5464 Counting triangles   3 213 29.16
6
28
5465 Deliver pizza   5 408 22.98
21
15
5466 Electronic queue   5 166 38.11
13
21
5467 Finding password   6 187 17.06
26
34
5468 Going to school   9 330 36.17
17
34
5469 Houses   1 46 25.56
34
26
5511 Heavy Sequences   -1 84 18.41
34
34
5522 Buy Your House   17 39.62
5523 Highway Patrol   19 43.01
5531 Kutevi Hard   90 43.40
5541 Sequoiadendron   1 66 44.25
17
17
5542 Counting pairs   4 135 26.54
39
36
5566 Math with Bases   15 10.78
5609 Knight Moves   6 107 40.69
9
20
5637 LL and ErBao   5 41.43
5638 Mobile Service Hard   1 91 22.09
50
50
5640 Fractions on Tree   6 930 61.30
14
21
5649 Divide Polygon   3 48 22.95
9
34
5652 Snow White and the N dwarfs   32 1031 18.12
21
31
5672 Captain Selection   -1 10 26.42
5673 Fractions on Tree ( reloaded !)   2 248 38.33
26
34
5699 The last digit re-visited   39 7471 31.71
9
9
5703 Primes of Lambda   2 25 26.79
42
42
5725 123 Sequence   2 124 24.09
1
1
5732 Paradox   43 1241 27.87
16
19
5830 Alternating Permutations   1 65 39.22
34
34
5831 Permutation Jumping   137 59.48
5832 AND Rounds   51 1702 24.89
17
20
5833 XOR Rounds   2 360 30.83
9
13
5885 Troops of Sand Monsters   2 114 17.47
17
17
5902 Tri   1 79 20.26
34
50
5917 Factorial length   11 3478 34.57
5
17
5969 Finding Maximum   3 109 30.31
13
23
5970 Finding Primes   22 1345 27.95
16
15
5971 LCM Sum   83 3960 26.33
20
29
5972 Maximum Sum Sequences   14 1160 20.64
15
18
5973 Selecting Teams   235 23.33
5975 Travelling Knight   2 54 32.69
34
34
5976 Traversing Grid   30 3721 58.56
6
10
5977 Weird Function   33 1155 18.97
18
16
5978 Frequent Prime Ranges   10 718 28.82
14
14
5979 Yet Another Permutations Problem   5 1358 49.53
7
15
5980 Matrix Game   14 968 29.10
8
20
6035 Dinner   4 164 27.30
9
34
6041 Mountain Walking   3 481 42.72
9
1

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