list of classical problems


ID NAME QUALITY USERS ACC % DIFFICULTY C I
23776 K-Query Online   84 1900 40.32
20
24
328 Bishops   82 8928 31.99
14
7
5971 LCM Sum   81 3599 25.86
20
29
3405 Almost Shortest Path   80 1661 31.58
22
21
21357 Crucial Equation   80 6113 38.07
4
9
91 Two squares or not two squares   79 6017 24.58
11
14
154 Sweet and Sour Rock   79 3409 51.31
14
17
3871 GCD Extreme   79 2603 29.46
19
26
21524 Pattern Find   79 4538 38.06
10
13
10509 Cards   78 13436 34.02
4
4
3381 Highways   77 4345 37.95
10
9
5117 Wine trading in Gergovia   76 5338 33.91
9
12
9494 Just Add It   76 6237 47.82
11
10
339 Recursive Sequence   75 3656 50.24
20
17
2939 Query on a tree V   75 1756 27.88
29
30
247 Chocolate   74 5773 44.10
10
18
3749 Subset Sums   74 4035 26.34
17
20
6294 Yodaness Level   74 3524 49.20
15
16
12150 Just Next !!!   74 6549 23.05
12
11
18167 SubXor   74 1711 30.45
25
29
288 Prime or Not   73 4998 18.83
21
22
10394 Buying Apples!   72 5420 34.89
12
14
8611 Non-Decreasing Digits   71 3716 54.79
7
11
22403 Divisors of factorial   71 1919 29.69
14
14
379 Ambiguous Permutations   70 12322 59.56
4
5
11404 Save Thy Toys   70 2811 30.18
12
15
1724 Counting Triangles   69 13060 34.02
7
21
6471 Printing some primes   69 7059 28.57
13
11
7588 Wise And Miser   69 5389 67.78
8
10
10283 ALL IZZ WELL   69 3447 31.29
17
14
78 Marbles   68 7908 34.95
15
13
1108 Card Trick   68 2189 50.36
21
24
3978 Distance Query   68 1703 32.30
24
21
8238 N-Factorful   68 2564 26.39
17
16
9788 Friends of Friends   67 7114 63.23
7
5
11772 Negative Score   67 3383 34.24
10
11
138 Election Posters   65 2272 25.65
20
21
503 Prime Intervals   65 1739 15.80
21
19
9032 Cube Free Numbers   65 4119 31.65
12
11
1296 4 values whose sum is 0   64 5062 24.86
18
14
11516 VALIDATE THE MAZE   64 3065 32.06
11
8
35674 COLORFUL ARRAY   64 1574 41.36
20
21
10628 Count on a tree   63 2374 17.02
32
31
10707 Count on a tree II   63 2942 18.83
31
31
21326 Akbar , The great   63 2441 15.79
21
18
7386 Activities   62 1422 25.50
16
19
11372 Blueberries   62 2220 33.56
12
13
27307 Alternating Sequences   62 2095 32.45
8
9
1028 Hubulullu   61 8206 58.76
2
15
8869 Roti Prata   61 6927 39.65
15
17

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