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list of classical problems


ID NAME QUALITY USERS ACC % DIFFICULTY C I
1841 Prime Path   337 10467 57.96
19
18
7742 Onotole needs your help   138 10104 41.04
4
11
5449 Seinfeld   188 9526 40.05
8
11
206 Bitmap   246 9496 28.13
15
16
7733 Happy Numbers I   89 9372 53.37
8
8
10582 subarrays   215 9362 34.31
11
13
7406 Beehive Numbers   38 9192 58.89
5
9
328 Bishops   83 8952 32.00
14
7
9861 Hotels Along the Croatian Coast   211 8952 41.70
10
12
345 Mixtures   256 8929 36.30
17
21
31 Fast Multiplication   48 8916 20.80
15
12
4560 The Double HeLiX   147 8873 37.58
11
10
97 Party Schedule   251 8865 36.19
14
16
27 Sorting Bank Accounts   53 8820 40.34
11
6
740 Treats for the Cows   261 8543 42.64
13
14
1805 Largest Rectangle in a Histogram   228 8459 28.06
18
23
11515 I AM VERY BUSY   151 8446 45.19
9
11
2178 He is offside!   5 8405 50.12
3
4
1028 Hubulullu   61 8237 58.72
2
15
12323 Minimum Knight moves !!!   132 8165 42.36
15
11
39 Piggy-Bank   140 8147 35.44
14
16
8670 THE MAX LINES   29 8027 36.86
4
10
78 Marbles   68 8013 34.97
15
13
12471 DIE HARD   157 7929 38.88
12
13
4580 ABCDEF   218 7836 29.23
14
16
8061 Christmas Play   57 7751 48.28
6
4
8612 Penney Game   38 7708 67.21
4
3
14932 Lowest Common Ancestor   233 7638 29.14
15
15
9921 ABC Path   160 7618 21.78
15
12
15 The Shortest Path   157 7587 24.08
17
12
6470 Finding the Kth Prime   48 7575 27.24
19
14
4452 Simple Arithmetics II   55 7460 42.39
11
5
5699 The last digit re-visited   39 7450 31.69
9
9
6471 Printing some primes   70 7388 28.77
13
11
8869 Roti Prata   62 7139 39.56
15
17
9788 Friends of Friends   67 7129 63.27
7
5
4033 Phone List   151 7077 31.58
16
14
7718 Number of common divisors   86 7015 24.77
12
13
15965 PLAY WITH MATH   60 6873 46.45
4
5
8001 Fibonacci Sum   179 6868 27.76
19
19
2906 GCD2   60 6818 36.47
12
11
12150 Just Next !!!   74 6597 23.05
12
11
3693 Maximum Sum   58 6498 42.27
19
18
7169 Pizza   45 6420 29.97
10
8
9494 Just Add It   76 6307 47.79
11
10
2716 Maximal Quadrilateral Area   -1 6241 50.24
3
8
21357 Crucial Equation   80 6240 38.11
4
9
1688 A Very Easy Problem!   40 6163 49.21
12
11
10286 DOTA HEROES   44 6070 44.91
3
5
91 Two squares or not two squares   79 6043 24.61
11
14

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