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list of classical problems (unsolved)


ID NAME QUALITY USERS ACC % DIFFICULTY C I
36577 K-transfer journey   4 27 39.00
21
26
201 The Game of Polygons   1 256 39.01
1
17
9734 Hacking the random number generator   62 5882 39.02
8
6
286 Selfish Cities   1 711 39.03
31
31
4141 Euler Totient Function   147 12037 39.03
8
11
2007 Another Very Easy Problem! WOW!!!   17 792 39.04
13
28
35582 Fibonacci Power Sum (hard)   3 21 39.05
34
42
13093 Mosque   1 49 39.05
6
12
3734 Periodni   2 666 39.07
26
34
27484 Zeros in Fibonacci period   2 14 39.08
1
50
3865 Reljef   3 94 39.09
26
17
35552 Fibonacci Power Sum   5 39 39.10
17
30
8845 Entertainment   1 52 39.11
34
20637 Ajob Subsequence   78 39.11
1
17
27102 Swap Space   1 132 39.11
1
17
13382 Kindergarten Painting Competition   40 39.13
17945 Mickey Mouse Magic Trick v5   28 39.13
3921 The Great Ball   60 3950 39.19
7
11
2130 Trolls   29 39.19
18183 Drunk Game   3 41 39.19
26
26
707 Triple-Free Sets   2 211 39.21
23
34
10239 Between the Mountains   36 5822 39.21
7
7
13707 SHAHBAG   9 1469 39.21
4
5
17504 Run length encoding   12 1035 39.22
8
4
5830 Alternating Permutations   1 65 39.22
34
34
8329 Road trip   1 82 39.22
26
26
7693 Environmental Engineering   38 39.23
3901 Black and White Nim   55 39.23
30 Bytelandian Blingors Network   54 3791 39.26
14
10
12240 Multinomial numbers   1 19 39.29
34
17
26132 Sum the Decimal-part II   3 56 39.29
17
9
34301 Map Exploration Cost   2 25 39.29
17
17
9430 The game of 31   165 39.30
13
17
277 City Game   16 1334 39.33
20
21
1677 Halloween treats   10 1010 39.33
14
22
9515 Dwarven Sniper´s Hunting   18 39.34
1700 Traveling by Stagecoach   9 476 39.35
17
16
5091 Feline Olympics - Mouseball   7 600 39.35
7
15
34865 Scary Secret Diary   5 23 39.36
21
30
14629 Play with Binary Numbers   4 509 39.37
8
9
31938 SLIS   2 145 39.39
34
34
18425 Polynomial Multiplication   47 1752 39.40
19
22
26308 Get higher and higher   7 145 39.44
13
24
8409 Favorite Sub Hair   3 99 39.44
26
26
41212 Bankomat   2 36 39.45
1
1
4062 Rob Mini-Safe   114 39.46
8869 Roti Prata   63 7451 39.46
15
17
2171 Ambiguous Codes   1 85 39.47
14949 HELPER   13 39.47
41128 Pierwiastkowanie   4 40 39.50
5
13

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