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list of classical problems


ID NAME QUALITY USERS ACC % DIFFICULTY C I
7299 Multiples of 3   121 3779 23.63
20
17
2416 Distinct Subsequences   94 3783 36.34
12
22
1710 Two Ends   115 3789 41.58
18
17
30 Bytelandian Blingors Network   54 3791 39.26
14
10
339 Recursive Sequence   79 3835 50.32
20
17
18164 Atoms in the Lab   32 3844 25.79
8
5
11373 Coke madness   37 3879 35.07
5
8
17247 Digit Sum   54 3881 37.89
18
22
63 Square Brackets   92 3888 56.74
14
18
705 New Distinct Substrings   42 3894 26.82
26
25
181 Scuba diver   99 3909 26.08
18
18
10442 Candy Distribution   22 3931 37.55
2
4
3921 The Great Ball   60 3950 39.19
7
11
5971 LCM Sum   83 3955 26.31
20
29
1684 Frequent values   112 3996 27.67
20
21
6297 Decipher   -1 4008 44.70
8
6
10500 Haybale stacking   24 4035 34.74
9
14
10798 Wachovia Bank   59 4064 46.72
7
8
9722 Insertion Sort   28 4072 31.43
12
12
66 Cross-country   38 4115 64.54
11
12
1837 Pie   60 4129 30.45
18
15
1435 Vertex Cover   129 4157 34.36
15
18
9032 Cube Free Numbers   66 4167 31.77
12
11
1728 Common Permutation   26 4201 46.71
6
6
3749 Subset Sums   74 4224 26.66
17
20
9655 Elevator Trouble   96 4334 32.39
11
11
2713 Can you answer these queries IV   60 4380 17.74
21
21
1786 In Danger   49 4395 53.61
7
13
8319 GLJIVE   -85 4406 35.24
2
5
64 Permutations   98 4411 52.18
12
20
10401 Aliens at the train   85 4480 29.28
13
10
3381 Highways   77 4516 38.26
10
9
8 Complete the Sequence!   32 4519 36.74
16
18
370 Ones and zeros   152 4522 30.11
19
21
2738 Number Guessing Game   42 4631 62.51
8
13
7259 Light Switching   102 4694 34.32
16
15
18155 abs(a-b) I   61 4698 47.90
5
9
14956 Submerging Islands   107 4717 39.68
13
14
913 Query on a tree II   118 4784 20.96
23
21
423 Assignments   244 4838 33.69
18
22
7975 Tri graphs   87 4871 29.13
11
10
16487 Update the array !   165 5026 38.77
9
14
7676 Sum of Digits   106 5034 38.79
17
20
21524 Pattern Find   81 5051 38.70
10
13
2905 Not a Triangle   93 5052 38.67
11
11
10565 Alice Sieve   31 5079 53.39
2
7
1296 4 values whose sum is 0   64 5120 24.92
18
14
7804 Defense of a Kingdom   41 5227 25.17
10
12
16420 Even Numbers   40 5279 48.05
6
5
10380 prayatna PR   86 5303 43.08
6
6

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