list of classical problems


ID NAME QUALITY USERS ACC % DIFFICULTY C I
21135 Distinct Viewpoints   0 0.00
34357 Ludic Numbers (hard)   0 0.00
34379 Another Travelling Salesman Problem   0 0.00
3647 Moebius   0 0.00
4476 Playfair Cracker   0 0.00
19687 Symmetric matrix 2   0 0.00
20983 Hogwarts   0 0.00
22316 pK   0 0.00
32065 Save Lord Tachanka   1 0 0.00
34374 Samvel and Boxes   0 0.00
231 The Zebra Crossing   1 0.29
177 AB-words   13 1.22
25450 When Does The World End   1 1 1.37
34
50
9000 Bob and his new kite factory   2 1.47
1457 Help Blue Mary Please! (Act I)   12 1.53
34
17
9190 Perfect Maze   29 1.65
23876 Board Score   1 1.92
1484 Search in XML   10 2.01
2661 Illumination   4 2.29
5157 Game Simulator   2 2.33
1797 Cardsharper   2 2.53
42
42
10799 Happiness at the lowest cost   5 2.63
15270 A plus B   1 3 2.86
34
34
34127 Gray Code and Twos Complement   2 2.90
2009 Cryptography   75 2.90
26194 The wit of Tenali Raman   1 2.94
850 Soccer Choreography   3 2.99
10683 DRIVE   1 3.03
2000 Boxes (Hard)   1 15 3.10
17
34
12076 Longest Common Subsequence   3 39 3.10
50
50
944 Free Tour   16 3.57
34117 Just a Palindrome   1 3.70
10210 After Party Transfers   2 29 3.75
26
34
4189 Landing   3 3.85
3902 Fight with functions   15 3.95
9527 Department   2 4.00
15864 SUMMING   4 4.71
17
34
7490 Biology   6 4.71
2019 The Rolling Ball   2 4.76
16809 Estimation   2 51 4.86
30
17
22675 A conjecture of Paul ErdÅ‘s (hard)   2 3 5.00
34
34
16240 Easy Password   -1 40 5.07
17
17
22177 RajaRani   2 2 5.13
8542 Modern Pocket Calculator   30 5.22
28
6
12803 Graph   3 5.26
2946 Eclipse   1 15 5.38
50
50
5120 Minimal Possible String   1 52 5.43
34
34
18932 Sum of primes (reverse mode)   3 5.51
17
17
23806 Yossy, The King of IRYUDAT   3 41 5.59
28
39
8478 Ancient Pocket Calculator   5 5.69

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