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list of classical problems


ID NAME QUALITY USERS ACC % DIFFICULTY C I
27494 Happiness   1 9 14.78
50
50
27519 Zeros of the fundamental Fibonacci period   -1 13 21.50
50
50
30945 Non Coprime Sequences   2 22 20.43
50
50
31971 NEO   1 10 3.44
34
50
31975 Ada and Scarecrow   14 16.06
50
50
32028 Ada and Parties   4 1.24
50
50
33039 Amazing Factor Sequence (hard)   2 23 60.27
50
50
33048 Find Linear Recurrence   4 24 34.80
42
50
33062 LCM Pesticide   2 11 35.94
50
50
35675 Primes in GCD Table (Hard)   2 14 25.27
50
50
36789 Linear Diophantine Equation   3 12 16.57
50
50
37446 Breaking Math   2 7 21.51
50
50
40501 A Simple Sieve   3 7 8.70
45
50
16063 Hackers   6 61 21.64
48
48
37422 Recurrence Power Sum   4 29 19.25
45
46
12076 Longest Common Subsequence   6 153 4.71
45
45
18932 Sum of primes (reverse mode)   5 23 17.53
45
45
34096 Counting Divisors (general)   6 376 37.39
38
45
60 The Gordian Dance   3 238 39.74
12
45
1797 Cardsharper   2 7 22.06
34
45
7363 Tree Sum   5 187 36.46
42
45
14122 Inverse of Recurrence Problem With a Square Root   3 61 49.14
23
45
15250 Swap (Hard - Level 1000)   3 6 23.47
34
45
15257 Partition function (HARD)   7 3.18
50
45
19975 Amazing Prime Sequence (hard)   5 97 44.55
39
45
34112 The Sum of Unitary Divisors   1 91 31.09
17
45
35631 Moon Safari (Extreme)   3 10 33.70
45
45
36946 March Of The King   3 16 17.24
45
45
105 Alice and Bob   3 179 26.74
42
42
145 Aliens   2 436 30.02
34
42
1741 Tetris 3D   2 191 32.52
26
42
2023 One Instruction Computer Simulator   47 10.58
42
42
2189 Making Pairs   1 48 16.54
34
42
2322 Tree Game   2 325 43.37
26
42
2961 Triomino Game   2 240 28.24
26
42
3833 Tresnja   1 128 52.33
42
42
3896 Maximal Independent Set   2 61 25.19
34
42
4063 Sell Pigs   2 481 52.19
26
42
4157 Domino   4 56 49.80
42
42
4166 Four colors   2 104 22.01
42
42
4458 Rainbow   2 38 19.53
34
42
5703 Primes of Lambda   2 25 26.79
42
42
6044 Minimum Diameter Circle   1 449 27.84
34
42
8056 Regex Edit Distance   2 36 43.00
34
42
8991 Number Guessing Game 2   3 132 35.60
17
42
9888 Bird tree   1 305 65.36
34
42
10107 Cybercrime Donut Investigation   2 56 25.17
34
42
10376 String Factorization!   1 47 10.76
26
42
12352 HNumbers   2 202 27.56
23
42
15556 Count right angle triangles   3 53 24.70
34
42

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