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list of classical problems


ID NAME QUALITY USERS ACC % DIFFICULTY C I
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 1030 18.10
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
5911 Square-free Integers Factorization   1 20 30.67
17
34
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 3956 26.32
20
29
5972 Maximum Sum Sequences   14 1160 20.64
15
18
5973 Selecting Teams   234 23.28
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   10 717 28.80
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
6042 Another Box Problem   10 847 49.90
6
17
6043 The Game   13 944 39.60
3
19
6044 Minimum Diameter Circle   1 449 27.84
34
42
6052 PBCGAME   85 27.45
6059 Another GCD problem   342 45.16
6072 Chocolate   161 21.61
17
34
6168 Building Bridges   27 1665 25.98
11
17
6169 Standing Sequence   2 122 28.60
34
39
6170 Homecoming   1 32 30.77
17
34
6171 Majority   35 5349 43.19
6
7
6172 OAE   7 1230 42.03
12
26
6187 Jane and Tarzan   7 219 24.61
15
22
6219 Edit distance   306 13252 33.14
12
18
6221 Increasing Powers of K   4 360 27.59
24
34

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