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list of classical problems


ID NAME QUALITY USERS ACC % DIFFICULTY C I
6171 Majority   35 5349 43.19
6
7
38 Labyrinth   98 5361 25.82
18
16
8785 Cut the Silver Bar   52 5381 54.43
5
16
5117 Wine trading in Gergovia   76 5440 33.77
9
12
368 Cobbled streets   98 5441 50.87
13
12
288 Prime or Not   73 5471 19.32
21
22
1026 Favorite Dice   42 5488 63.85
4
21
3885 Coins Game   92 5496 45.26
10
13
7588 Wise And Miser   70 5521 67.29
8
10
1163 Java vs C ++   17 5524 22.88
14
5
61 Brackets   178 5548 24.47
19
20
1845 Mice and Maze   100 5568 35.93
10
10
25 Pouring water   100 5578 24.41
19
22
10394 Buying Apples!   73 5615 34.86
12
14
23 Pyramids   -19 5734 36.68
9
15
694 Distinct Substrings   92 5780 26.61
21
24
3946 K-th Number   243 5820 35.38
25
27
10239 Between the Mountains   36 5822 39.21
7
7
9734 Hacking the random number generator   62 5882 39.02
8
6
375 Query on a tree   167 5890 17.60
33
27
10232 Distinct Primes   85 5930 45.48
10
9
247 Chocolate   74 5960 43.29
10
18
13043 The Mirror of Galadriel   33 5980 64.50
2
3
91 Two squares or not two squares   79 6096 24.70
11
14
10286 DOTA HEROES   44 6107 44.90
3
5
3266 K-query   248 6114 25.54
21
25
1688 A Very Easy Problem!   40 6171 49.09
12
11
2716 Maximal Quadrilateral Area   -1 6255 50.22
3
8
21357 Crucial Equation   80 6390 38.05
4
9
7169 Pizza   45 6438 29.98
10
8
9494 Just Add It   76 6464 46.85
11
10
3693 Maximum Sum   59 6621 42.45
19
18
12150 Just Next !!!   75 6667 23.12
12
11
2906 GCD2   60 6867 36.48
12
11
15965 PLAY WITH MATH   60 6904 46.49
4
5
8001 Fibonacci Sum   182 6994 27.96
19
19
9788 Friends of Friends   67 7149 63.27
7
5
7718 Number of common divisors   87 7293 24.45
11
13
4033 Phone List   151 7332 31.82
16
14
8869 Roti Prata   63 7446 39.48
15
17
5699 The last digit re-visited   39 7471 31.71
9
9
4452 Simple Arithmetics II   55 7512 42.28
11
5
15 The Shortest Path   157 7719 24.07
17
12
8612 Penney Game   38 7743 67.22
4
3
8061 Christmas Play   57 7792 48.26
6
4
6471 Printing some primes   71 7822 28.92
13
11
6470 Finding the Kth Prime   48 7868 27.24
19
14
9921 ABC Path   162 7888 21.88
15
12
4580 ABCDEF   218 7920 29.35
14
16
14932 Lowest Common Ancestor   234 7941 29.25
15
15

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