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list of classical problems


ID NAME QUALITY USERS ACC % DIFFICULTY C I
23776 K-Query Online   83 1884 40.35
20
24
328 Bishops   82 8917 32.00
14
7
5971 LCM Sum   81 3553 25.81
20
29
3405 Almost Shortest Path   80 1661 31.58
22
21
91 Two squares or not two squares   79 6001 24.55
11
14
154 Sweet and Sour Rock   79 3407 51.36
14
17
21357 Crucial Equation   79 6015 38.18
4
9
21524 Pattern Find   79 4458 38.14
10
13
3871 GCD Extreme   78 2545 29.59
18
26
10509 Cards   78 13369 34.09
4
4
3381 Highways   77 4328 37.92
10
9
5117 Wine trading in Gergovia   76 5309 33.96
9
12
9494 Just Add It   76 6214 47.86
11
10
339 Recursive Sequence   75 3630 50.10
20
17
2939 Query on a tree V   75 1724 27.83
29
30
247 Chocolate   74 5727 44.28
10
18
3749 Subset Sums   74 4016 26.30
17
20
6294 Yodaness Level   74 3519 49.23
15
16
12150 Just Next !!!   74 6536 23.08
12
11
288 Prime or Not   73 4942 18.79
21
22
18167 SubXor   73 1653 30.36
25
29
10394 Buying Apples!   72 5381 34.92
12
14
8611 Non-Decreasing Digits   71 3715 54.78
7
11
22403 Divisors of factorial   71 1910 29.71
14
14
379 Ambiguous Permutations   70 12299 59.54
4
5
11404 Save Thy Toys   70 2809 30.18
12
15
1724 Counting Triangles   69 13032 34.04
7
21
7588 Wise And Miser   69 5368 67.81
8
10
10283 ALL IZZ WELL   69 3439 31.29
17
14
1108 Card Trick   68 2183 50.36
21
24
3978 Distance Query   68 1667 32.04
24
21
6471 Printing some primes   68 6953 28.56
13
12
78 Marbles   67 7872 34.96
15
13
8238 N-Factorful   67 2512 26.39
17
16
11772 Negative Score   67 3374 34.31
10
11
9788 Friends of Friends   66 7109 63.23
7
5
138 Election Posters   65 2264 25.61
20
21
503 Prime Intervals   65 1734 15.80
21
19
9032 Cube Free Numbers   65 4117 31.66
12
11
1296 4 values whose sum is 0   64 5058 24.87
18
14
11516 VALIDATE THE MAZE   63 3048 32.04
11
8
21326 Akbar , The great   63 2396 15.72
21
18
35674 COLORFUL ARRAY   63 1536 41.51
20
20
7386 Activities   62 1418 25.49
16
19
10628 Count on a tree   62 2322 16.99
32
31
10707 Count on a tree II   62 2869 18.73
31
31
11372 Blueberries   62 2215 33.53
12
13
27307 Alternating Sequences   62 2092 32.46
8
9
8869 Roti Prata   61 6766 39.86
15
17
9734 Hacking the random number generator   61 5751 38.85
8
6

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