list of classical problems


ID NAME QUALITY USERS ACC % DIFFICULTY C I
32949 Ada and Digits 2   5 71 37.53
30
30
34359 Triangle on Binary Tree   6 36 56.00
26
30
34557 Apoorv Loves Primes   9 46 42.49
26
30
34865 Scary Secret Diary   4 19 34.04
21
30
35552 Fibonacci Power Sum   4 24 35.16
17
30
37476 Personal LCM   4 34 11.69
21
30
1812 Longest Common Substring II   14 1811 17.71
29
29
2050 Strange Billboard   10 799 60.65
13
29
11695 A Summatory (HARD)   6 94 30.22
31
29
28599 Counting Magical Permutatitons   7 56 28.28
17
29
6488 Printing some primes (Hard)   11 151 15.16
35
29
9012 Maximum Self-Matching   31 649 45.82
24
29
33372 Lannister Army   12 338 20.66
19
29
5971 LCM Sum   81 3529 25.74
20
29
18167 SubXor   73 1644 30.39
25
29
30760 Ada and Travelling Salesman   18 173 26.72
23
29
104 Highways   2 740 19.92
23
28
115 Family   2 68 11.62
28
28
703 Mobile Service   6 892 21.36
24
28
861 Counting inversions   6 458 20.04
34
28
1693 Coconuts   13 921 29.80
21
28
1960 Rectangles   3 163 16.39
34
28
2175 Emoticons   3 327 21.95
23
28
3007 Oil Company   3 178 25.08
23
28
3008 Finding the Top RPS Player   1 176 68.54
23
28
3931 Maximum Triangle Area   2 279 29.16
5
28
4329 Counting K-Rectangle   4 386 29.99
20
28
4839 Ant   3 190 39.06
23
28
5120 Minimal Possible String   3 55 5.08
34
28
5152 Brute-force Algorithm EXTREME   2 94 22.03
17
28
5464 Counting triangles   3 202 28.75
6
28
6560 N DIV PHI_N (Hard)   4 164 21.04
17
28
6893 Power Sums   2 104 56.54
26
28
7022 Cow Patterns   3 112 24.56
28
28
7487 Flibonakki   15 849 29.57
21
28
7600 Milk Trading   5 181 30.18
1
28
8277 Number of Prime Strings   3 87 18.91
23
28
8720 Looks like Nim - but it is not   3 90 21.35
6
28
9547 Counting d-pairs   2 134 30.81
23
28
10050 Power Tower City   6 89 71.43
24
28
10114 Remoteland   3 128 56.36
34
28
10210 After Party Transfers   1 36 4.79
34
28
10464 Reverse Engineering   4 137 48.53
17
28
11580 A Famous Game   379 33.94
28
28
11844 Binary Sequence of Prime Number   5 220 21.55
34
28
12241 Classification from ErdÅ‘s and Selfridge   5 27 17.71
28
28
13044 Dyslexic Gollum   3 122 29.14
23
28
15073 Team Slide Treasure Hunt Race   2 87 37.46
17
28
15149 play with prime numbers (III)(hard )   6 28 50.53
34
28
15551 Do You Even Lift   2 18 38.35
23
28

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