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list of classical problems


ID NAME QUALITY USERS ACC % DIFFICULTY C I
1841 Prime Path   338 10594 57.99
19
18
7742 Onotole needs your help   138 10152 41.10
4
11
206 Bitmap   247 9660 28.29
15
16
10582 subarrays   215 9569 34.36
11
13
5449 Seinfeld   189 9560 40.07
8
11
7733 Happy Numbers I   89 9403 53.36
8
8
345 Mixtures   256 9221 36.24
17
21
7406 Beehive Numbers   38 9215 58.91
5
9
9861 Hotels Along the Croatian Coast   211 9065 41.78
10
12
31 Fast Multiplication   49 9043 20.71
15
12
328 Bishops   83 8988 32.04
14
7
4560 The Double HeLiX   147 8980 37.55
11
10
27 Sorting Bank Accounts   53 8977 40.34
11
6
97 Party Schedule   251 8959 36.24
14
16
1805 Largest Rectangle in a Histogram   229 8758 28.41
18
23
12323 Minimum Knight moves !!!   133 8716 42.66
15
11
11515 I AM VERY BUSY   153 8646 45.08
9
11
740 Treats for the Cows   261 8630 42.74
13
14
2178 He is offside!   5 8447 50.13
3
4
1028 Hubulullu   61 8257 58.72
2
15
39 Piggy-Bank   140 8249 35.53
14
16
78 Marbles   68 8228 34.99
15
13
8670 THE MAX LINES   29 8045 36.87
4
10
12471 DIE HARD   157 7984 38.69
12
13
14932 Lowest Common Ancestor   234 7944 29.25
15
15
4580 ABCDEF   218 7923 29.36
14
16
9921 ABC Path   162 7892 21.89
15
12
6470 Finding the Kth Prime   48 7869 27.24
19
14
6471 Printing some primes   71 7827 28.92
13
11
8061 Christmas Play   57 7793 48.26
6
4
8612 Penney Game   38 7743 67.22
4
3
15 The Shortest Path   157 7721 24.06
17
12
4452 Simple Arithmetics II   55 7514 42.29
11
5
5699 The last digit re-visited   39 7471 31.71
9
9
8869 Roti Prata   63 7451 39.46
15
17
4033 Phone List   151 7335 31.82
16
14
7718 Number of common divisors   87 7296 24.44
11
13
9788 Friends of Friends   67 7149 63.27
7
5
8001 Fibonacci Sum   182 6995 27.96
19
19
15965 PLAY WITH MATH   60 6904 46.49
4
5
2906 GCD2   60 6869 36.48
12
11
12150 Just Next !!!   75 6668 23.12
12
11
3693 Maximum Sum   59 6625 42.45
19
18
9494 Just Add It   76 6464 46.85
11
10
7169 Pizza   45 6438 29.98
10
8
21357 Crucial Equation   80 6392 38.06
4
9
2716 Maximal Quadrilateral Area   -1 6255 50.22
3
8
1688 A Very Easy Problem!   40 6172 49.09
12
11
3266 K-query   248 6123 25.54
21
25
10286 DOTA HEROES   44 6107 44.90
3
5

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