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list of classical problems


ID NAME QUALITY USERS ACC % DIFFICULTY C I
30961 Non Coprime Sequences(Hard)   4 16 7.64
34
34
49 Hares and Foxes   1 107 7.62
17
26
14700 Delta catheti II (Hard)   1 3 7.55
41374 Digit Shifts   12 7.49
34
17
3 Substring Check (Bug Funny)   8 1068 7.44
42
16
1815 Problems Collection (Volume X)   76 7.33
15164 primes triangle (I)   3 67 7.28
34
26
19216 Super Mario Revisited   6 21 7.23
20
23
11334 Lucifer Sort   7 7.17
34
2419 G-Line Grid   1 4 7.14
10443 Bridges   1 7.14
15270 A plus B   1 12 6.86
34
34
6230 Dictionary order   4 6.78
3902 Fight with functions   3 20 6.55
42
34
19301 Operators (new ver)   3 40 6.54
38
17
13369 Cut on a tree   9 6.53
1726 Exchange   18 6.52
6299 Move Marbles   1 21 6.37
17
34
41890 Anagrams and Divisibility   5 6.14
10572 Cheating on the contest   1 24 6.04
17
34
23435 Game Calculator   1 5.88
2151 Digital Calculator   22 5.81
7490 Biology   13 5.80
25450 When Does The World End   1 5 5.69
34
50
22675 A conjecture of Paul ErdÅ‘s (hard)   2 4 5.56
34
34
36704 Projectile Motion   2 8 5.51
34
26
23806 Yossy, The King of IRYUDAT   3 43 5.48
28
39
2019 The Rolling Ball   3 5.26
9527 Department   7 5.15
34
17
16240 Easy Password   41 5.09
17
26
5120 Minimal Possible String   3 55 5.08
34
28
8886 Guess number!   17 5.03
34
34
10799 Happiness at the lowest cost   12 4.84
2009 Cryptography   1 142 4.80
1
34
10210 After Party Transfers   1 36 4.79
34
28
5157 Game Simulator   1 17 4.57
50
17
8478 Ancient Pocket Calculator   7 4.44
22177 RajaRani   3 3 4.35
17
17
13882 THE WITTY BOY   1 4 4.32
34
17
12076 Longest Common Subsequence   5 123 4.21
50
50
9753 Tuple Division   17 4.10
850 Soccer Choreography   4 4.02
36441 Funny Prime Factorization   5 49 3.81
12
9
34973 Yet Another Subset Sum Problem   2 4 3.76
26
34
4189 Landing   4 3.64
31971 NEO   1 10 3.60
34
50
2661 Illumination   6 3.40
944 Free Tour   16 3.34
2000 Boxes (Hard)   2 17 3.07
26
34
15257 Partition function (HARD)   1 6 2.93
50
42

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