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list of classical problems


ID NAME QUALITY USERS ACC % DIFFICULTY C I
1841 Prime Path   336 10457 57.97
19
18
7742 Onotole needs your help   138 10095 41.03
4
11
5449 Seinfeld   188 9524 40.06
8
11
206 Bitmap   246 9484 28.11
15
16
7733 Happy Numbers I   89 9369 53.37
8
8
10582 subarrays   215 9351 34.30
11
13
7406 Beehive Numbers   38 9190 58.89
5
9
328 Bishops   83 8947 32.00
14
7
9861 Hotels Along the Croatian Coast   211 8941 41.68
10
12
345 Mixtures   256 8916 36.32
17
21
31 Fast Multiplication   48 8895 20.79
15
12
4560 The Double HeLiX   147 8860 37.57
12
10
97 Party Schedule   251 8859 36.19
14
16
27 Sorting Bank Accounts   53 8801 40.39
11
6
740 Treats for the Cows   261 8534 42.64
13
14
11515 I AM VERY BUSY   151 8432 45.19
9
11
2178 He is offside!   5 8399 50.12
3
4
1805 Largest Rectangle in a Histogram   228 8373 27.99
18
23
1028 Hubulullu   61 8235 58.73
2
15
39 Piggy-Bank   140 8134 35.45
14
16
12323 Minimum Knight moves !!!   132 8109 42.32
15
11
8670 THE MAX LINES   29 8023 36.86
4
10
78 Marbles   68 7999 34.96
15
13
12471 DIE HARD   157 7921 38.91
12
13
4580 ABCDEF   218 7832 29.23
14
16
8061 Christmas Play   57 7747 48.27
6
4
8612 Penney Game   38 7704 67.20
4
3
14932 Lowest Common Ancestor   233 7608 29.14
15
15
9921 ABC Path   160 7587 21.78
15
12
15 The Shortest Path   157 7574 24.07
17
12
6470 Finding the Kth Prime   48 7539 27.24
19
14
4452 Simple Arithmetics II   55 7459 42.38
11
5
5699 The last digit re-visited   39 7450 31.69
9
9
6471 Printing some primes   70 7330 28.73
13
11
9788 Friends of Friends   67 7128 63.26
7
5
8869 Roti Prata   62 7106 39.56
15
17
4033 Phone List   151 7060 31.58
16
14
7718 Number of common divisors   86 6992 24.80
12
13
15965 PLAY WITH MATH   60 6867 46.44
4
5
8001 Fibonacci Sum   179 6854 27.75
19
19
2906 GCD2   60 6815 36.47
12
11
12150 Just Next !!!   74 6584 23.06
12
11
3693 Maximum Sum   58 6483 42.25
19
18
7169 Pizza   45 6420 29.97
10
8
9494 Just Add It   76 6296 47.83
11
10
2716 Maximal Quadrilateral Area   -1 6237 50.24
3
8
21357 Crucial Equation   80 6216 38.09
4
9
1688 A Very Easy Problem!   40 6163 49.21
12
11
10286 DOTA HEROES   44 6063 44.94
3
5
91 Two squares or not two squares   79 6040 24.61
11
14

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