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list of classical problems


ID NAME QUALITY USERS ACC % DIFFICULTY C I
9494 Just Add It   76 6198 47.91
11
10
3381 Highways   77 4309 37.91
10
9
3871 GCD Extreme   78 2507 29.49
18
26
10509 Cards   78 13356 34.09
4
4
21524 Pattern Find   78 4412 38.13
10
13
91 Two squares or not two squares   79 5997 24.55
11
14
154 Sweet and Sour Rock   79 3402 51.44
14
17
21357 Crucial Equation   79 6002 38.16
4
9
3405 Almost Shortest Path   80 1660 31.57
22
21
5971 LCM Sum   81 3528 25.74
20
29
328 Bishops   82 8910 32.00
14
7
10232 Distinct Primes   83 5783 45.49
10
9
23776 K-Query Online   83 1867 40.58
20
24
1112 Number Steps   84 33686 43.24
4
4
7718 Number of common divisors   85 6732 25.03
11
13
10401 Aliens at the train   85 4356 29.25
13
10
5295 Adjacent Bit Counts   86 3539 65.91
14
18
7975 Tri graphs   86 4827 29.08
11
10
10380 prayatna PR   86 5220 43.37
6
6
2884 Martian Mining   87 2267 47.79
13
22
130 Rent your airplane and make money   88 3335 28.63
18
17
400 To and Fro   89 23230 55.53
14
7
3643 Traffic Network   89 2088 18.30
18
21
7733 Happy Numbers I   89 9335 53.37
8
8
694 Distinct Substrings   91 5493 26.37
21
24
7424 Girls and Boys   91 12215 46.94
4
10
63 Square Brackets   92 3835 56.89
14
18
3885 Coins Game   92 5141 46.07
10
13
6818 Capital City   92 2692 38.88
19
20
9493 Advanced Fruits   92 2222 37.49
19
16
2905 Not a Triangle   93 4976 38.64
11
11
2416 Distinct Subsequences   94 3688 36.21
12
22
9655 Elevator Trouble   95 4152 32.10
11
11
2123 Candy I   96 28433 44.20
4
5
38 Labyrinth   97 5282 25.76
17
16
64 Permutations   98 4269 51.96
12
20
181 Scuba diver   98 3782 25.94
18
18
368 Cobbled streets   98 5375 50.76
13
12
1845 Mice and Maze   99 5368 36.03
10
10
25 Pouring water   100 5331 24.12
19
22
7259 Light Switching   102 4274 32.81
16
15
42 Adding Reversed Numbers   103 75871 48.41
6
4
7676 Sum of Digits   103 4751 38.57
17
20
2157 Anti-Blot System   104 12913 45.25
10
5
14956 Submerging Islands   104 4396 39.60
13
13
1030 Triple Fat Ladies   106 19007 51.74
4
12
1684 Frequent values   111 3756 27.68
20
21
913 Query on a tree II   115 4366 20.68
24
21
1710 Two Ends   115 3756 41.99
18
17
1419 A Game with Numbers   118 11950 61.62
3
10

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