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list of classical problems


ID NAME QUALITY USERS ACC % DIFFICULTY C I
741 Steady Cow Assignment   5 462 30.86
20
31
8425 Coloring Trees   10 320 30.30
20
31
21643 Unhappy Numbers   6 45 36.75
31
31
30759 Ada and Species   8 92 25.35
26
31
5652 Snow White and the N dwarfs   31 832 21.22
21
31
34254 Huseyn and his game   14 109 29.05
6
31
10707 Count on a tree II   62 2837 19.07
31
31
3380 Tourist   28 1023 38.53
19
31
300 Cable TV Network   2 622 35.61
24
30
1461 Greedy Hydra   3 193 33.50
27
30
3977 Police Query   8 291 17.08
27
30
4941 Integer Factorization (20 digits)   8 550 55.87
34
30
7002 Buildings   5 75 37.35
21
30
8747 Substrings II   6 144 10.47
34
30
10264 Meteors   40 1259 27.53
26
30
12125 Fibonacci With a Square Root   8 148 33.31
30
30
12943 Counting   5 79 47.71
8
30
13529 Special Graph   4 79 12.21
37
30
18457 Very Friends   6 241 27.70
11
30
23969 Helping Jar Jar Binks   5 77 21.28
27
30
40084 Just Primes II   7 21 35.71
34
30
2005 Minus Operation   8 304 33.25
30
30
2939 Query on a tree V   75 1720 27.78
29
30
10477 GM plants   16 340 29.07
25
30
14923 King Graffs Defense   19 428 25.75
26
30
15086 Land Acquisition   37 1300 28.30
24
30
735 Minimum Diameter Spanning Tree   1 182 33.93
17
30
1785 Code   2 220 25.65
26
30
3576 Boy Scouts   3 142 28.57
21
30
3723 Snooker   4 442 50.00
12
30
4532 String reduction   2 166 16.62
17
30
5271 A Coin Game   4 502 30.46
21
30
7296 Trees Again   5 166 50.53
21
30
8073 The area of the union of circles   1 438 20.38
38
30
8910 Probablistic OR   2 172 58.36
17
30
10649 Mirror Number   5 162 20.91
13
30
10677 Joseph’s Problem   4 141 48.61
17
30
12324 Tiles   3 95 21.48
21
30
12981 Fences   3 31 24.28
26
30
14894 Good Celebration   3 24 21.39
26
30
15553 Hamsters   2 56 32.87
30
30
17150 Palin Square   6 109 31.53
21
30
20673 Count The Indexes   7 240 29.15
17
30
20979 Good   4 71 42.65
21
30
23492 One piece   4 95 34.07
17
30
26450 Palindromic Primes (Hard)   5 34 25.05
34
30
27493 Even Frequency   6 70 29.55
17
30
28079 Maximum Child Sum   5 97 22.78
30
30
32900 K-dominant array   3 294 30.65
30
30
32949 Ada and Digits 2   5 71 37.53
30
30

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