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list of classical problems


ID NAME QUALITY USERS ACC % DIFFICULTY C I
2939 Query on a tree V   75 1779 28.02
29
30
18167 SubXor   75 1732 30.44
25
29
5117 Wine trading in Gergovia   76 5355 33.82
9
12
9494 Just Add It   76 6269 47.85
11
10
3381 Highways   77 4364 37.99
10
9
10509 Cards   78 13458 34.01
4
4
91 Two squares or not two squares   79 6032 24.60
11
14
3871 GCD Extreme   79 2694 29.52
19
26
21524 Pattern Find   79 4607 37.99
10
13
154 Sweet and Sour Rock   80 3411 51.26
14
17
3405 Almost Shortest Path   80 1665 31.58
22
21
21357 Crucial Equation   80 6170 38.07
4
9
5971 LCM Sum   81 3665 25.90
20
29
328 Bishops   82 8936 32.00
14
7
1112 Number Steps   84 33876 43.16
4
4
10232 Distinct Primes   84 5832 45.49
10
9
10401 Aliens at the train   85 4385 29.22
13
10
23776 K-Query Online   85 1917 40.25
20
23
5295 Adjacent Bit Counts   86 3619 65.30
14
18
7718 Number of common divisors   86 6932 24.80
12
13
10380 prayatna PR   86 5244 43.29
6
6
2884 Martian Mining   87 2287 47.69
13
22
7975 Tri graphs   87 4840 29.10
11
10
130 Rent your airplane and make money   88 3346 28.60
18
17
3643 Traffic Network   89 2098 18.27
18
21
7733 Happy Numbers I   89 9365 53.39
8
8
400 To and Fro   90 23323 55.54
14
7
694 Distinct Substrings   91 5594 26.48
21
24
7424 Girls and Boys   91 12274 46.93
4
10
63 Square Brackets   92 3854 56.84
14
18
3885 Coins Game   92 5255 45.73
10
13
6818 Capital City   92 2770 39.08
19
20
9493 Advanced Fruits   92 2237 37.53
19
16
2905 Not a Triangle   93 5001 38.65
11
11
2416 Distinct Subsequences   94 3714 36.26
12
22
9655 Elevator Trouble   96 4200 32.28
11
11
38 Labyrinth   97 5306 25.76
17
16
2123 Candy I   97 28676 44.23
4
5
64 Permutations   98 4321 51.97
12
20
181 Scuba diver   98 3809 25.97
18
18
368 Cobbled streets   98 5389 50.80
13
12
25 Pouring water   100 5412 24.24
19
22
1845 Mice and Maze   100 5440 36.06
10
10
7259 Light Switching   102 4412 33.31
16
15
42 Adding Reversed Numbers   103 78166 48.28
6
4
2157 Anti-Blot System   104 12934 45.25
10
5
7676 Sum of Digits   104 4821 38.58
17
20
14956 Submerging Islands   104 4506 39.71
13
13
1030 Triple Fat Ladies   106 19093 51.76
4
12
1684 Frequent values   111 3831 27.57
20
21

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