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list of classical problems


ID NAME QUALITY USERS ACC % DIFFICULTY C I
5541 Sequoiadendron   1 62 45.22
17
17
5542 Counting pairs   4 131 26.46
39
36
5566 Math with Bases   15 11.28
5609 Knight Moves   6 99 40.26
9
20
5637 LL and ErBao   5 50.88
5638 Mobile Service Hard   1 84 22.73
50
50
5640 Fractions on Tree   6 926 61.22
14
21
5649 Divide Polygon   3 33 21.14
9
34
5652 Snow White and the N dwarfs   32 939 22.44
21
31
5672 Captain Selection   5 36.36
5673 Fractions on Tree ( reloaded !)   2 244 38.22
26
34
5699 The last digit re-visited   39 7450 31.69
9
9
5703 Primes of Lambda   2 22 26.97
42
42
5725 123 Sequence   2 120 23.56
1
1
5732 Paradox   42 1223 27.93
16
19
5830 Alternating Permutations   1 57 38.46
34
34
5831 Permutation Jumping   135 58.71
5832 AND Rounds   51 1694 24.83
17
20
5833 XOR Rounds   2 356 30.69
9
13
5885 Troops of Sand Monsters   2 108 17.32
17
17
5902 Tri   1 77 20.54
34
50
5911 Square-free Integers Factorization   1 20 39.51
17
34
5917 Factorial length   11 3464 34.51
5
17
5969 Finding Maximum   3 103 30.45
13
23
5970 Finding Primes   22 1335 27.89
16
15
5971 LCM Sum   81 3701 25.89
20
29
5972 Maximum Sum Sequences   14 1147 20.62
15
18
5973 Selecting Teams   225 22.87
5975 Travelling Knight   2 50 33.70
34
34
5976 Traversing Grid   30 3710 58.49
6
10
5977 Weird Function   33 1140 18.86
18
16
5978 Frequent Prime Ranges   10 698 29.29
14
14
5979 Yet Another Permutations Problem   5 1353 49.46
7
15
5980 Matrix Game   14 953 29.09
8
20
6035 Dinner   4 155 27.03
9
34
6041 Mountain Walking   3 476 42.60
9
1
6042 Another Box Problem   10 838 49.93
6
17
6043 The Game   13 940 39.52
3
19
6044 Minimum Diameter Circle   1 438 27.47
34
42
6052 PBCGAME   81 26.99
6059 Another GCD problem   332 45.67
6072 Chocolate   157 21.37
17
34
6168 Building Bridges   27 1646 26.02
11
17
6169 Standing Sequence   2 118 28.49
34
39
6170 Homecoming   1 28 30.56
17
34
6171 Majority   35 5321 43.14
6
7
6172 OAE   7 1164 41.33
12
26
6187 Jane and Tarzan   6 213 24.46
17
26
6219 Edit distance   306 13147 33.11
12
18
6221 Increasing Powers of K   4 352 27.41
24
34

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