list of classical problems


ID NAME QUALITY USERS ACC % DIFFICULTY C I
31099 Ada and CAPTCHA   9 172 17.05
20
16
32943 Ada and Unstable Sort   9 537 41.06
5
9
34557 Apoorv Loves Primes   9 46 42.49
26
30
36132 Rightful Distribution   9 151 39.92
9
9
36533 Gentleman s Wallet   9 53 40.87
12
16
37388 Balls and Queries   9 53 42.11
7
11
37474 Shuffling Problem   9 98 23.21
5
8
40379 Arithmetic Progression Query   9 84 29.40
15
15
40808 Crowded Music Festival   9 46 48.15
7
13
3 Substring Check (Bug Funny)   8 1065 7.54
42
16
17 The Bytelandian Cryptographer (Act I)   8 1353 41.76
15
26
56 Dyzio   8 1209 31.41
11
14
402 Hike on a Graph   8 763 40.24
15
19
839 Optimal Marks   8 821 24.47
28
34
1459 The Secret of an Aerolite   8 259 43.46
24
26
2005 Minus Operation   8 304 33.25
30
30
2414 Calculate The Cost   8 336 22.26
28
17
2450 Counting Rabbits   8 1215 34.01
10
12
2728 Breaking in   8 282 26.63
30
19
2817 Distinct Increasing Subsequences   8 783 24.52
19
26
3184 Game of Lines   8 1300 27.74
14
9
3724 Rainbow Ride   8 477 36.12
19
19
3937 Wooden Sticks   8 674 36.88
21
26
3953 Paid Roads   8 250 26.79
19
26
3975 Most Servings Meal   8 350 26.37
28
28
3977 Police Query   8 291 17.08
27
30
4454 Brackets II   8 412 35.93
26
24
4941 Integer Factorization (20 digits)   8 556 55.76
34
30
4948 Integer Factorization (29 digits)   8 100 15.64
40
34
4993 Traveling Salesman   8 1037 37.15
14
2
5151 Alice’s Cube   8 501 28.99
24
21
5468 Going to school   8 318 35.85
15
34
6236 Matches   8 449 21.93
26
7
6717 Two Paths   8 212 17.28
34
36
7586 Number of Palindromes   8 1303 46.13
13
14
7683 Powered and Squared   8 710 27.13
19
16
7734 Twist and whirl - want to cheat   8 229 45.06
24
17
8139 Chairs   8 546 37.70
12
20
8351 KOSARK   8 841 42.62
12
5
8456 PRIMITIVEROOTS   8 362 46.72
8
20
9103 Special Numbers   8 753 30.04
13
13
9119 Indiana Jones and the lost Soccer Cup   8 376 29.00
11
13
9576 Dynamic Graph Connectivity   8 289 37.31
41
38
9952 111…1 Squared   8 1755 46.66
5
10
10622 DIFERENCIJA   8 433 41.85
21
23
11066 AP - Complete The Series v2   8 1112 14.20
19
11
11470 To the moon   8 838 21.04
24
21
11848 Power with Combinatorics   8 431 20.26
25
37
12125 Fibonacci With a Square Root   8 148 33.31
30
30
12326 Dating Rishi   8 635 36.25
17
26

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