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list of classical problems (unsolved)


ID NAME QUALITY USERS ACC % DIFFICULTY C I
32856 Ada and Contact   2 34 25.69
34
34
32940 Alien Language   2 74 40.77
28
34
33039 Amazing Factor Sequence (hard)   2 23 60.27
50
50
33062 LCM Pesticide   2 11 35.94
50
50
33906 Ada and Sets   2 49 52.63
17
17
33999 Ada and Primal Fear   2 31 27.22
26
26
34301 Map Exploration Cost   2 25 39.29
17
17
34314 Spaceships in Space   2 21 33.94
17
9
34357 Ludic Numbers (hard)   2 4 14.63
34379 Another Travelling Salesman Problem   2 12 12.28
50
42
34481 Galactic Division   2 9 6.67
34616 Taming the Dragon   2 102 32.64
12
17
34617 Palindrome Lover   2 179 25.25
3
3
34624 Longest palindrome with no adjacent duplicates   2 95 31.59
28
17
34719 Gift Arrangement   2 20 41.67
26
9
34910 Easy Math   2 620 18.42
2
4
34973 Yet Another Subset Sum Problem   2 4 2.56
26
34
35337 Faketorial Hashing   2 15 10.63
34
34
35381 VALENTINE   2 42 27.50
11
14
35675 Primes in GCD Table (Hard)   2 14 25.27
50
50
35988 Power Play   2 26 21.99
1
1
36123 Plant the potatoes   2 18 15.15
17
26
36144 The Cow Gathering   2 38 26.74
17
34
36342 Lasertag   2 11 33.93
34
17
36668 Not So Blind Escape   2 10 30.12
34
42
36704 Projectile Motion   2 9 5.73
34
26
36998 Superpowertree   2 27 29.25
17
17
37375 Kingdom of Equality   2 14 40.62
26
26
37389 Weird Construction   2 21 9.54
1
6
37446 Breaking Math   2 7 21.51
50
50
38365 Asacoco Prescription   2 46 19.71
17
26
40016 Robot World   2 72 11.84
34
34
40469 Watching over the Mines of Moria   2 25 46.25
23
23
40636 Stacks of boxes   2 54 29.96
26
34
41212 Bankomat   2 36 39.45
1
1
41213 Diamond Collector   2 29 45.71
6
12
41657 GCD Goodness   2 30 30.62
17
26
42049 Maximum Sum of the Array   2 117 8.85
1
3
42546 Hu-Gi-Oh   2 45 37.11
1
1
12 The Game of Master-Mind   1 793 44.12
17
17
19 The Bytelandian Cryptographer (Act III)   1 129 34.05
17
26
37 The Proper Key   1 143 13.99
17
17
49 Hares and Foxes   1 119 7.85
17
26
62 The Imp   1 300 31.14
17
23
73 Bacterial   1 76 18.66
50
17
77 New bricks disorder   1 290 37.79
17
17
83 Bundling   1 57 34.04
17
17
84 Shortcut   1 237 31.56
17
9
87 Football   1 67 19.23
17
1
88 Which is Next   1 132 19.44
34
34

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