list of classical problems


ID NAME QUALITY USERS ACC % DIFFICULTY C I
1112 Number Steps   84 34156 43.04
4
4
328 Bishops   83 8988 32.04
14
7
5971 LCM Sum   83 3959 26.33
20
29
3871 GCD Extreme   82 3106 29.39
19
26
21524 Pattern Find   81 5057 38.70
10
13
154 Sweet and Sour Rock   80 3450 51.16
14
17
21357 Crucial Equation   80 6392 38.06
4
9
91 Two squares or not two squares   79 6096 24.70
11
14
339 Recursive Sequence   79 3840 50.29
20
17
2939 Query on a tree V   79 1924 28.77
29
30
3405 Almost Shortest Path   79 1713 31.36
22
21
10509 Cards   78 13539 34.03
4
4
3381 Highways   77 4517 38.26
10
9
5117 Wine trading in Gergovia   76 5443 33.77
9
12
9494 Just Add It   76 6464 46.85
11
10
18167 SubXor   76 1903 30.82
25
29
12150 Just Next !!!   75 6668 23.12
12
11
247 Chocolate   74 5964 43.30
10
18
3749 Subset Sums   74 4224 26.66
17
20
6294 Yodaness Level   74 3574 49.30
15
16
288 Prime or Not   73 5477 19.32
21
22
10394 Buying Apples!   73 5616 34.86
12
14
8238 N-Factorful   72 2793 26.82
18
17
379 Ambiguous Permutations   71 12377 59.61
4
5
3978 Distance Query   71 1953 33.23
24
21
6471 Printing some primes   71 7827 28.92
13
11
8611 Non-Decreasing Digits   71 3733 54.84
7
11
22403 Divisors of factorial   71 1985 29.90
14
14
7588 Wise And Miser   70 5522 67.30
8
10
10283 ALL IZZ WELL   70 3493 31.36
17
14
10707 Count on a tree II   70 3555 19.61
31
30
11404 Save Thy Toys   70 2830 30.19
12
15
1724 Counting Triangles   69 13198 33.99
7
21
78 Marbles   68 8228 34.99
15
13
1108 Card Trick   68 2245 50.38
21
24
503 Prime Intervals   67 1826 16.13
21
19
9788 Friends of Friends   67 7149 63.27
7
5
11772 Negative Score   67 3451 34.17
10
11
9032 Cube Free Numbers   66 4167 31.77
12
11
138 Election Posters   65 2343 25.84
20
21
35674 COLORFUL ARRAY   65 1782 41.36
20
21
1296 4 values whose sum is 0   64 5121 24.92
18
14
11516 VALIDATE THE MAZE   64 3183 32.23
11
8
21326 Akbar , The great   64 2731 16.05
21
17
8869 Roti Prata   63 7451 39.46
15
17
10628 Count on a tree   63 2633 17.43
32
31
7386 Activities   62 1447 25.57
16
19
9734 Hacking the random number generator   62 5882 39.02
8
6
11372 Blueberries   62 2251 33.64
12
13
13753 Amazing Prime Sequence   62 3362 29.93
10
12

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