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list of classical problems


ID NAME QUALITY USERS ACC % DIFFICULTY C I
6450 PP numbers   10 884 41.90
10
6
18284 Petya and the Road Repairs   60 884 23.96
19
22
207 Three-coloring of binary trees   16 880 35.93
20
17
10570 Longest Common Substring   5 876 29.88
31
32
18598 Encode Message   13 874 63.59
11
5
108 Decoding Morse Sequences   7 872 24.19
24
17
1871 Making A Budget   15 872 48.51
13
15
3587 Prime Again   11 868 16.36
20
15
7487 Flibonakki   16 865 29.55
21
28
16554 Linearian Colony   12 863 42.77
11
12
9050 Tohu again   2 860 29.16
17
12
9652 Robots on a grid   21 859 19.48
17
13
1787 Run Length Encoding   7 856 19.57
15
4
4354 Snowflakes   1 856 25.44
9
21
4235 Wandering Queen   25 854 14.96
23
19
1706 Queens, Knights and Pawns   4 848 32.99
17
9
8351 KOSARK   8 847 42.76
12
5
16030 Psycho   13 846 20.60
10
11
6042 Another Box Problem   10 845 49.95
6
17
8496 No Squares Numbers   18 842 35.06
19
15
899 Ws Cipher   6 840 38.38
14
15
27381 Emoticon   27 839 49.90
8
14
2277 Silly Sort   30 838 54.54
17
27
6898 Substring Problem   22 838 15.13
23
23
9569 Sum of Pairwise Products   7 838 31.43
6
13
279 Interesting number   26 837 24.16
19
24
15648 Commando   26 837 33.09
27
34
839 Optimal Marks   8 835 24.57
25
34
26193 Lost and survived   46 835 35.22
16
12
10069 Kompići   19 834 68.59
11
20
11985 Gao on a tree   26 833 14.99
28
27
18273 Encode Integer   15 833 25.43
8
7
28304 Ada and Teams   24 828 39.07
15
15
11102 SelfDescribingSequenceProblem   4 826 47.50
12
6
11180 369 Numbers   17 824 12.45
26
24
2371 Another Longest Increasing Subsequence Problem   17 822 13.57
29
33
31040 Namit In Trouble   21 818 23.65
14
14
10471 Aliens at the train, again!   28 814 44.91
16
16
7741 Sequence   7 810 30.31
11
23
3409 Electricity   2 809 47.65
5
1
3973 0 0 Pairs   4 806 27.34
15
15
6290 Robbery 2   7 806 32.90
17
13
15980 Ascending Fibonacci Numbers   23 806 17.33
17
13
2050 Strange Billboard   10 804 60.65
13
29
30893 Sabbir and Game   14 804 34.29
5
8
30738 Ada and Coins   57 801 31.13
14
22
104 Highways   2 799 20.31
23
28
1868 Making Money   6 799 36.88
8
4
4491 Primes in GCD Table   2 799 35.58
17
26
2817 Distinct Increasing Subsequences   9 793 24.56
22
26

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