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list of classical problems


ID NAME QUALITY USERS ACC % DIFFICULTY C I
23776 K-Query Online   83 1866 40.61
20
24
328 Bishops   82 8906 32.03
14
7
3405 Almost Shortest Path   80 1660 31.57
22
21
5971 LCM Sum   80 3516 25.73
20
29
91 Two squares or not two squares   79 5997 24.55
11
14
154 Sweet and Sour Rock   79 3400 51.43
14
17
21357 Crucial Equation   79 5994 38.14
4
9
10509 Cards   78 13352 34.10
4
4
21524 Pattern Find   78 4396 38.14
10
13
3381 Highways   77 4309 37.93
10
9
3871 GCD Extreme   77 2495 29.44
18
26
5117 Wine trading in Gergovia   76 5295 34.00
9
12
339 Recursive Sequence   75 3605 50.08
20
17
2939 Query on a tree V   75 1716 27.78
29
30
9494 Just Add It   75 6195 47.90
11
10
247 Chocolate   74 5697 44.35
10
18
6294 Yodaness Level   74 3512 49.20
15
16
12150 Just Next !!!   74 6506 23.10
12
11
288 Prime or Not   73 4914 18.78
21
22
3749 Subset Sums   73 3997 26.28
17
20
18167 SubXor   73 1640 30.36
25
28
10394 Buying Apples!   72 5368 34.91
12
14
8611 Non-Decreasing Digits   71 3714 54.78
7
11
379 Ambiguous Permutations   70 12291 59.53
4
5
11404 Save Thy Toys   70 2809 30.18
12
15
22403 Divisors of factorial   70 1906 29.77
14
14
1724 Counting Triangles   69 13011 34.03
7
21
7588 Wise And Miser   69 5349 67.82
8
10
10283 ALL IZZ WELL   69 3420 31.24
17
14
1108 Card Trick   68 2172 50.39
21
24
3978 Distance Query   68 1651 31.94
24
21
6471 Printing some primes   68 6862 28.59
13
12
78 Marbles   67 7863 34.96
15
13
8238 N-Factorful   67 2465 26.39
17
16
11772 Negative Score   67 3367 34.29
10
11
9788 Friends of Friends   66 7106 63.23
7
5
138 Election Posters   65 2261 25.63
20
21
503 Prime Intervals   65 1727 15.78
21
19
9032 Cube Free Numbers   65 4117 31.68
12
11
1296 4 values whose sum is 0   63 5049 24.87
18
14
11516 VALIDATE THE MAZE   63 3034 32.05
11
8
21326 Akbar , The great   63 2374 15.75
21
18
10628 Count on a tree   62 2291 16.95
32
31
10707 Count on a tree II   62 2816 19.02
31
31
11372 Blueberries   62 2215 33.53
12
13
27307 Alternating Sequences   62 2086 32.41
8
9
7386 Activities   61 1415 25.46
16
19
9734 Hacking the random number generator   61 5726 38.83
8
6
13753 Amazing Prime Sequence   61 3300 29.75
11
12
22776 Balika Vadhu and Alok Nath   61 1183 33.31
14
18

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