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list of classical problems


ID NAME QUALITY USERS ACC % DIFFICULTY C I
23776 K-Query Online   83 1867 40.58
20
24
328 Bishops   82 8908 32.00
14
7
5971 LCM Sum   81 3525 25.73
20
29
3405 Almost Shortest Path   80 1660 31.57
22
21
91 Two squares or not two squares   79 5997 24.55
11
14
154 Sweet and Sour Rock   79 3402 51.44
14
17
21357 Crucial Equation   79 6000 38.16
4
9
3871 GCD Extreme   78 2504 29.49
18
26
10509 Cards   78 13355 34.09
4
4
21524 Pattern Find   78 4409 38.15
10
13
3381 Highways   77 4309 37.91
10
9
5117 Wine trading in Gergovia   76 5296 33.99
9
12
9494 Just Add It   76 6198 47.91
11
10
339 Recursive Sequence   75 3607 50.06
20
17
2939 Query on a tree V   75 1718 27.77
29
30
247 Chocolate   74 5698 44.34
10
18
6294 Yodaness Level   74 3515 49.22
15
16
12150 Just Next !!!   74 6507 23.10
12
11
288 Prime or Not   73 4916 18.77
21
22
3749 Subset Sums   73 4003 26.29
17
20
18167 SubXor   73 1642 30.38
25
29
10394 Buying Apples!   72 5368 34.90
12
14
8611 Non-Decreasing Digits   71 3715 54.78
7
11
22403 Divisors of factorial   71 1908 29.75
14
14
379 Ambiguous Permutations   70 12291 59.53
4
5
11404 Save Thy Toys   70 2809 30.18
12
15
1724 Counting Triangles   69 13013 34.03
7
21
7588 Wise And Miser   69 5351 67.83
8
10
10283 ALL IZZ WELL   69 3426 31.26
17
14
1108 Card Trick   68 2175 50.37
21
24
3978 Distance Query   68 1653 31.97
24
21
6471 Printing some primes   68 6873 28.58
13
12
78 Marbles   67 7864 34.95
15
13
8238 N-Factorful   67 2465 26.40
17
16
11772 Negative Score   67 3369 34.30
10
11
9788 Friends of Friends   66 7106 63.23
7
5
138 Election Posters   65 2261 25.61
20
21
503 Prime Intervals   65 1728 15.78
21
19
9032 Cube Free Numbers   65 4117 31.68
12
11
1296 4 values whose sum is 0   63 5051 24.87
18
14
11516 VALIDATE THE MAZE   63 3036 32.09
11
8
21326 Akbar , The great   63 2379 15.73
21
18
7386 Activities   62 1416 25.48
16
19
10628 Count on a tree   62 2295 16.96
32
31
10707 Count on a tree II   62 2829 19.05
31
31
11372 Blueberries   62 2215 33.53
12
13
27307 Alternating Sequences   62 2088 32.43
8
9
9734 Hacking the random number generator   61 5727 38.83
8
6
13753 Amazing Prime Sequence   61 3303 29.76
11
12
18155 abs(a-b) I   61 4472 48.14
5
9

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