list of classical problems


ID NAME QUALITY USERS ACC % DIFFICULTY C I
328 Bishops   76 7800 31.34
14
6
2178 He is offside!   3 7703 49.83
3
4
97 Party Schedule   230 7638 35.74
14
16
8670 THE MAX LINES   25 7596 36.85
3
9
740 Treats for the Cows   242 7506 43.57
13
14
3267 D-query   368 7504 32.81
19
23
32 A Needle in the Haystack   149 7431 38.15
14
13
9861 Hotels Along the Croatian Coast   191 7425 42.88
10
12
206 Bitmap   216 7356 27.37
15
16
10582 subarrays   195 7294 37.60
11
13
345 Mixtures   212 7278 38.91
16
20
1028 Hubulullu   56 7242 59.48
2
15
1716 Can you answer these queries III   200 7153 54.18
22
21
8612 Penney Game   32 7152 67.65
4
3
1841 Prime Path   281 7077 62.41
19
18
5699 The last digit re-visited   36 6980 31.81
9
9
4452 Simple Arithmetics II   52 6973 42.21
11
5
8061 Christmas Play   50 6951 48.52
6
4
27 Sorting Bank Accounts   46 6575 40.84
11
7
4580 ABCDEF   195 6545 29.19
13
16
11515 I AM VERY BUSY   135 6485 48.67
9
11
78 Marbles   61 6450 33.96
15
13
39 Piggy-Bank   126 6362 34.94
14
16
9788 Friends of Friends   60 6213 67.09
7
5
7169 Pizza   35 6102 29.79
10
8
1805 Largest Rectangle in a Histogram   191 6017 30.90
18
23
4560 The Double HeLiX   118 5973 40.81
11
10
1688 A Very Easy Problem!   38 5970 49.31
12
11
15965 PLAY WITH MATH   53 5835 49.01
4
5
2906 GCD2   49 5780 36.42
12
10
2716 Maximal Quadrilateral Area   5714 51.20
3
8
8001 Fibonacci Sum   154 5620 28.96
19
19
10286 DOTA HEROES   36 5615 45.76
3
5
3693 Maximum Sum   49 5470 45.35
20
19
7718 Number of common divisors   74 5469 28.31
11
13
12150 Just Next !!!   57 5312 23.99
11
11
10239 Between the Mountains   29 5279 39.19
6
7
91 Two squares or not two squares   69 5276 25.15
10
14
1163 Java vs C ++   16 5258 22.76
13
4
15 The Shortest Path   122 5229 23.38
17
12
9921 ABC Path   134 5206 23.35
14
11
4033 Phone List   135 5163 34.13
16
14
13043 The Mirror of Galadriel   30 4986 65.94
2
3
14932 Lowest Common Ancestor   178 4936 34.24
14
14
12471 DIE HARD   128 4926 44.10
11
13
368 Cobbled streets   94 4901 52.53
14
13
31 Fast Multiplication   43 4884 18.53
14
13
6171 Majority   34 4848 42.85
6
7
10232 Distinct Primes   71 4824 51.13
9
9
9734 Hacking the random number generator   56 4768 39.87
7
6

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