list of classical problems


ID NAME QUALITY USERS ACC % DIFFICULTY C I
134 Phony Primes   1 179 19.18
23
23
153 Balancing the Stone   2 324 32.92
17
23
188 Rectangles   2 181 12.80
17
23
967 Parking Bay   3 552 49.21
12
23
1696 Will Indiana Jones Get There   2 119 26.80
28
23
1707 Reliable Nets   4 340 31.57
28
23
1776 DNA Laboratory   3 108 11.19
34
23
2856 Help Bob   6 273 31.92
21
23
3105 Power Modulo Inverted   6 980 25.91
15
23
3111 Stabards   3 160 43.10
12
23
3389 The Knights of the Round Circle   3 441 67.25
6
23
3866 Finding Palindromes   7 241 19.29
19
23
3982 String problem   7 604 48.95
9
23
3999 FROGGER   3 97 27.01
28
23
4197 Dominoes   4 119 22.89
23
23
4483 Roads Repair   7 177 32.49
20
23
5969 Finding Maximum   3 103 30.45
13
23
6356 Rock-Paper-Scissors-Lizard-Spock   2 171 41.42
12
23
6956 IOI2009 Mecho   3 160 18.05
28
23
7188 Escape from Jail   12 618 30.90
18
23
7232 Inversion Sort   5 155 17.68
32
23
7866 Regular expressions (Hard)   1 96 24.95
28
23
8263 Big Pyramid   3 45 59.76
23
23
8407 Candies and Milestones   2 474 21.68
6
23
8591 Prime Permutations   5 104 31.01
28
23
8989 Funny programming contest   3 33 24.85
12
23
10711 VUK   5 178 52.63
20
23
10958 Vero Dominoes   3 416 45.01
1
23
11564 E 23 Stairs pattern   1 137 39.39
17
23
11574 A Famous Stone Collector   3 122 35.60
9
23
11789 Aliens at the subway   2 67 17.03
23
23
12001 Bit by Bit   2 139 36.43
17
23
12367 Designing T-Shirts   8 261 32.26
17
23
12746 Colorful Circle (EASY)   5 463 20.68
28
23
13048 Escape from the Mines   2 67 24.08
23
23
13738 Happy Valentine Day (Valentine Maze Game)   3 138 36.42
28
23
13789 Loving Power   4 113 40.00
12
23
13829 Tjandra 19th birthday present (HARD)   2 36 38.02
39
23
14664 Shared cathetus (easy)   3 98 46.27
17
23
14823 Advanced Battleships   5 49 13.42
23
23
14928 Pyramidal Constructions   -1 334 49.90
28
23
14943 Dynamically-Rooted Tree   21 314 30.92
21
23
15243 Primos Quest   1 171 39.93
23
23
15430 Alice in Amsterdam, I mean Wonderland   3 133 23.44
17
23
15733 Hall of Fountains   3 17 50.00
17
23
16279 Escaping from escaping   4 168 29.24
12
23
16557 HTML Formatting   3 29 19.44
17
23
17955 Lalith Dosa   8 347 25.77
12
23
18094 Robert Langdon & Florence   1 175 64.69
28
23
18425 Polynomial Multiplication   46 1523 39.27
19
23

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