list of classical problems


ID NAME QUALITY USERS ACC % DIFFICULTY C I
328 Bishops   82 8890 32.02
14
7
23776 K-Query Online   82 1853 40.59
20
24
3405 Almost Shortest Path   80 1660 31.58
22
21
5971 LCM Sum   80 3482 25.63
20
29
21357 Crucial Equation   79 5982 38.16
4
9
91 Two squares or not two squares   78 5987 24.53
11
14
154 Sweet and Sour Rock   78 3389 51.35
14
17
10509 Cards   78 13341 34.12
4
4
3381 Highways   77 4291 37.88
10
9
3871 GCD Extreme   77 2461 29.44
18
26
21524 Pattern Find   77 4357 38.12
10
13
5117 Wine trading in Gergovia   76 5278 34.10
9
12
2939 Query on a tree V   75 1698 27.68
29
30
9494 Just Add It   75 6179 47.94
11
10
247 Chocolate   74 5686 44.46
10
18
339 Recursive Sequence   74 3594 50.06
20
17
6294 Yodaness Level   74 3512 49.20
15
16
12150 Just Next !!!   74 6500 23.10
12
11
288 Prime or Not   73 4895 18.78
21
22
3749 Subset Sums   73 3987 26.27
17
20
18167 SubXor   73 1632 30.38
25
28
8611 Non-Decreasing Digits   71 3712 54.79
7
11
10394 Buying Apples!   71 5333 34.85
12
14
379 Ambiguous Permutations   70 12285 59.54
4
5
11404 Save Thy Toys   70 2808 30.17
12
15
22403 Divisors of factorial   70 1903 29.89
14
14
1724 Counting Triangles   69 13002 34.02
7
21
7588 Wise And Miser   69 5337 67.86
8
10
10283 ALL IZZ WELL   69 3411 31.23
17
14
1108 Card Trick   68 2169 50.37
21
24
3978 Distance Query   68 1625 32.03
24
21
78 Marbles   67 7853 34.96
15
13
8238 N-Factorful   67 2458 26.43
17
16
11772 Negative Score   67 3364 34.32
10
11
6471 Printing some primes   66 6821 28.58
13
11
9788 Friends of Friends   66 7099 63.23
7
5
138 Election Posters   65 2257 25.64
20
21
9032 Cube Free Numbers   65 4116 31.68
12
11
503 Prime Intervals   64 1719 15.79
21
19
1296 4 values whose sum is 0   63 5046 24.87
18
14
11516 VALIDATE THE MAZE   63 3018 32.11
11
8
21326 Akbar , The great   63 2353 15.69
21
18
10707 Count on a tree II   62 2750 18.83
31
31
11372 Blueberries   62 2215 33.54
12
13
27307 Alternating Sequences   62 2084 32.40
8
9
7386 Activities   61 1415 25.48
16
19
9734 Hacking the random number generator   61 5718 38.83
8
6
10628 Count on a tree   61 2256 16.89
32
32
13753 Amazing Prime Sequence   61 3299 29.75
11
12
22776 Balika Vadhu and Alok Nath   61 1183 33.31
14
18

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