list of classical problems


ID NAME QUALITY USERS ACC % DIFFICULTY C I
9012 Maximum Self-Matching   31 759 46.79
24
29
11676 Counting diff-pairs   14 210 21.52
24
26
26771 Almost Prime Numbers Again   17 332 19.57
24
20
4235 Wandering Queen   26 869 14.98
24
19
13868 Roads of NITT   43 625 29.39
24
24
287 Smart Network Administrator   3 458 23.71
23
28
2826 Round-Robin Scheduling   12 650 36.17
23
22
15561 Find Number Of Pair of Friends   11 469 32.15
23
21
30760 Ada and Travelling Salesman   18 188 27.13
23
29
31893 Fibonacci and Easy GCD   7 69 28.76
23
32
33019 Catering Contracts   7 93 34.31
23
27
40459 The triangle of Pascal modulo 2   9 43 52.87
23
21
28740 Try to complete   22 675 25.61
23
23
3937 Wooden Sticks   9 681 36.97
23
28
13447 Crayon   12 147 26.70
23
27
18945 Car with powers   11 308 29.73
23
20
22268 Euler Totient Function Sieve   29 408 19.54
23
21
28609 Boat Burglary   15 155 14.43
23
25
913 Query on a tree II   118 4786 20.97
23
21
11840 Sum of Squares with Segment Tree   55 2087 51.04
23
19
6898 Substring Problem   22 851 15.19
23
23
7258 Lexicographical Substring Search   32 2294 22.74
23
19
9942 Holiday Accommodation   30 1120 26.18
23
25
104 Highways   2 821 20.59
23
28
122 Voracious Steve   2 275 29.95
23
23
134 Phony Primes   1 183 19.22
23
23
291 Cube Root   1 255 16.67
23
15
703 Mobile Service   7 1175 23.16
23
23
707 Triple-Free Sets   2 211 39.21
23
34
1465 On the Way to Find Chris   2 62 15.35
23
23
1712 Permalex   -1 174 19.50
23
17
1771 Yet Another N-Queen Problem   2 326 24.55
23
28
2058 Reaux! Sham! Beaux!   4 664 32.90
23
6
2175 Emoticons   3 332 22.01
23
28
2526 Decoding   9 1041 36.51
23
15
2916 Can you answer these queries V   52 2890 26.70
23
24
3007 Oil Company   3 178 25.08
23
28
3008 Finding the Top RPS Player   1 183 65.90
23
28
3253 Electronic Document Security   3 156 61.07
23
6
3484 Crossbits   3 99 15.25
23
15
3752 JEDNAKOST   12 601 18.45
23
21
4197 Dominoes   4 125 23.08
23
23
4227 "Shortest" pair of paths   3 214 41.11
23
17
4413 Gem   3 99 40.00
23
12
4523 Binomial Coefficients   210 41.58
23
12
4839 Ant   3 194 38.89
23
28
5317 Tetravex Puzzle   2 284 46.25
23
6
6665 Easy Longest Common Substring   2 149 23.11
23
17
7250 Blocks for kids   2 102 40.56
23
23
7322 Prime Pattern   1 97 36.16
23
17

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