list of classical problems


ID NAME QUALITY USERS ACC % DIFFICULTY C I
15561 Find Number Of Pair of Friends   9 420 32.02
22
19
16793 Statistics Applied   2 205 21.45
22
17
17732 Salary Management   10 228 18.92
22
24
22337 Stick values   9 106 29.96
22
24
22412 Divisors of factorial (hard)   9 158 47.63
22
22
30394 Prime is fun   8 79 34.10
22
24
40459 The triangle of Pascal modulo 2   7 38 45.36
22
20
1754 Divisor Summation (Hard)   31 1125 15.51
22
21
3107 Odd Numbers of Divisors   27 1039 18.25
22
22
1442 Strange Food Chain   19 769 18.39
22
25
32745 Ada and Harvest   19 261 27.07
22
21
26 Build the Fence   37 2197 28.30
22
17
3405 Almost Shortest Path   80 1660 31.57
22
21
20 The Bytelandian Cryptographer (Act IV)   2 55 25.07
21
34
55 Jasiek   3 460 28.20
21
13
86 November Rain   4 291 17.44
21
21
397 I Conduit   3 190 15.40
21
21
479 Permutation generator   1 126 27.48
21
17
1108 Card Trick   68 2175 50.37
21
24
1434 Equation   5 415 33.18
21
26
2139 Gossipers   3 590 31.74
21
26
3576 Boy Scouts   3 142 28.57
21
30
3870 Military Story   3 277 29.38
21
12
5271 A Coin Game   4 502 30.46
21
30
5465 Deliver pizza   5 403 22.81
21
15
5652 Snow White and the N dwarfs   31 829 21.20
21
31
6479 The Very Greatest Common Divisor   4 93 10.23
21
13
6826 Hacking   6 126 13.87
21
26
7296 Trees Again   5 166 50.53
21
30
8349 BRODOVI   6 607 43.97
21
17
8550 Longest Square Factor   4 67 19.29
21
34
8668 THE BLACK AND WHITE QUEENS   3 81 45.86
21
34
10522 K12-OE Numbers   7 227 49.14
21
21
10622 DIFERENCIJA   8 413 40.83
21
23
10968 LUCIFER Number   41 1395 64.85
21
21
11909 C You and Me   4 86 45.38
21
21
12324 Tiles   3 95 21.48
21
30
12357 Subset and upset (HARD)   4 127 42.07
21
21
12399 Johnny Hates Climbing   3 111 23.21
21
13
12810 Yet Another Multiple Problem   9 261 21.21
21
23
12916 MMM   3 79 18.31
21
26
13091 Snakes and Ladders   2 101 16.86
21
9
14891 Good Debugging   4 57 43.50
21
17
15439 Zombie Outbreak   5 68 25.37
21
21
15571 Difference   2 64 24.23
21
28
16758 Divisible by 6 and 9   -1 122 37.97
21
13
17150 Palin Square   6 109 31.53
21
30
17539 Cows Language   3 32 40.54
21
26
18187 Ingredients   10 266 32.34
21
23
20979 Good   4 71 42.65
21
30

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