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list of classical problems


ID NAME QUALITY USERS ACC % DIFFICULTY C I
23776 K-Query Online   83 1882 40.41
20
24
328 Bishops   82 8914 31.99
14
7
5971 LCM Sum   81 3536 25.76
20
29
3405 Almost Shortest Path   80 1661 31.58
22
21
91 Two squares or not two squares   79 5998 24.55
11
14
154 Sweet and Sour Rock   79 3402 51.42
14
17
21357 Crucial Equation   79 6010 38.17
4
9
21524 Pattern Find   79 4443 38.15
10
13
3871 GCD Extreme   78 2524 29.52
18
26
10509 Cards   78 13365 34.09
4
4
3381 Highways   77 4328 37.92
10
9
5117 Wine trading in Gergovia   76 5305 33.97
9
12
9494 Just Add It   76 6210 47.91
11
10
339 Recursive Sequence   75 3626 50.09
20
17
2939 Query on a tree V   75 1722 27.79
29
30
247 Chocolate   74 5714 44.33
10
18
6294 Yodaness Level   74 3519 49.23
15
16
12150 Just Next !!!   74 6516 23.11
12
11
288 Prime or Not   73 4929 18.77
21
22
3749 Subset Sums   73 4007 26.29
17
20
18167 SubXor   73 1649 30.37
25
29
10394 Buying Apples!   72 5373 34.91
12
14
8611 Non-Decreasing Digits   71 3715 54.78
7
11
22403 Divisors of factorial   71 1910 29.69
14
14
379 Ambiguous Permutations   70 12294 59.53
4
5
11404 Save Thy Toys   70 2809 30.18
12
15
1724 Counting Triangles   69 13023 34.04
7
21
7588 Wise And Miser   69 5356 67.79
8
10
10283 ALL IZZ WELL   69 3431 31.27
17
14
1108 Card Trick   68 2176 50.38
21
24
3978 Distance Query   68 1665 32.03
24
21
6471 Printing some primes   68 6926 28.57
13
12
78 Marbles   67 7869 34.95
15
13
8238 N-Factorful   67 2472 26.41
17
16
11772 Negative Score   67 3374 34.31
10
11
9788 Friends of Friends   66 7106 63.23
7
5
138 Election Posters   65 2264 25.61
20
21
503 Prime Intervals   65 1731 15.79
21
19
9032 Cube Free Numbers   65 4117 31.67
12
11
1296 4 values whose sum is 0   63 5054 24.88
18
14
11516 VALIDATE THE MAZE   63 3046 32.06
11
8
21326 Akbar , The great   63 2390 15.71
21
18
7386 Activities   62 1417 25.48
16
19
10628 Count on a tree   62 2313 17.00
32
31
10707 Count on a tree II   62 2856 18.80
31
31
11372 Blueberries   62 2215 33.53
12
13
27307 Alternating Sequences   62 2090 32.45
8
9
35674 COLORFUL ARRAY   62 1521 41.57
20
20
9734 Hacking the random number generator   61 5737 38.84
8
6
13753 Amazing Prime Sequence   61 3303 29.76
11
12

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