list of classical problems


ID NAME QUALITY USERS ACC % DIFFICULTY C I
503 Prime Intervals   67 1826 16.13
21
19
3266 K-query   248 6123 25.54
21
25
20 The Bytelandian Cryptographer (Act IV)   2 60 25.77
21
34
55 Jasiek   3 479 28.42
21
13
86 November Rain   4 301 17.60
21
21
397 I Conduit   3 196 15.57
21
21
479 Permutation generator   1 135 28.24
21
17
685 Partition the sequence   3 244 21.17
21
30
1108 Card Trick   68 2245 50.38
21
24
1434 Equation   5 421 33.46
21
26
2139 Gossipers   3 602 31.76
21
26
3576 Boy Scouts   3 145 28.31
21
30
3870 Military Story   3 286 28.81
21
12
5271 A Coin Game   4 554 31.99
21
30
5465 Deliver pizza   5 408 22.98
21
15
5652 Snow White and the N dwarfs   32 1031 18.12
21
31
6288 Treeramids   16 1096 51.97
21
19
6479 The Very Greatest Common Divisor   4 95 10.11
21
13
6826 Hacking   6 129 14.00
21
26
7296 Trees Again   5 168 47.65
21
30
7487 Flibonakki   16 867 29.53
21
29
8349 BRODOVI   6 620 43.77
21
17
8668 THE BLACK AND WHITE QUEENS   2 84 43.03
21
34
8786 The Longest Chain of Domino Tiles   5 297 31.93
21
21
10522 K12-OE Numbers   7 238 50.18
21
21
10622 DIFERENCIJA   8 605 46.41
21
23
11909 C You and Me   4 95 45.36
21
21
12324 Tiles   3 100 21.57
21
30
12357 Subset and upset (HARD)   4 128 40.98
21
21
12399 Johnny Hates Climbing   3 115 23.47
21
13
12810 Yet Another Multiple Problem   9 333 22.67
21
23
14891 Good Debugging   4 60 41.22
21
17
15439 Zombie Outbreak   5 75 22.86
21
21
15571 Difference   2 147 33.39
21
28
16758 Divisible by 6 and 9   -1 126 36.28
21
13
16793 Statistics Applied   3 214 22.15
21
17
17150 Palin Square   6 116 31.96
21
30
18187 Ingredients   10 295 31.69
21
23
20174 Counting Divisors (cube)   7 406 35.85
21
42
21104 Jarin Loves New Task   6 49 38.20
21
21
21671 Jumppy and the Grid   4 63 33.10
21
21
22253 Distributing sweets   4 109 21.13
21
17
22275 Collecting Candies   4 70 28.34
21
30
22528 Paths in a Tree   3 45 26.64
21
21
22535 String Play   5 46 42.62
21
21
22804 Knapsack   4 56 30.87
21
23
23153 Equivalent Passwords   9 77 36.16
21
14
23429 Grid Arithmetic   2 51 43.57
21
17
26301 Bits. Exponents and Gcd   4 160 31.67
21
26
26746 Gears   4 44 29.81
21
17

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