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list of classical problems


ID NAME QUALITY USERS ACC % DIFFICULTY C I
21332 Pigeonhole Tower   7 1750 35.71
4
6
10476 Fair bases   37 35.71
32271 KNIGHTS level testing   1 11 35.71
34
17
40084 Just Primes II   7 21 35.71
34
30
25311 Candies   9 1077 35.72
6
7
27234 Sums of 2 and 3   18 957 35.72
5
10
21964 Golf Bot   5 81 35.75
34
27
23516 One day with string   10 231 35.75
7
10
10399 Conga line   -1 356 35.75
9
9
4186 Break a New RSA system   1 137 35.76
10712 Easy Calculation   16 1362 35.76
10
14
36423 One Eight_Nine   2 191 35.76
3
10
7809 Cow Photographs   2 167 35.77
26
26
9382 Complan Carnival   34 35.77
17406 Cheating a Boolean Tree   5 111 35.78
23
15
12558 Collision Issue   69 35.80
17
1
21354 String Problem   4 25 35.80
26
26
9756 Alaska   24 2917 35.80
5
3
32199 Ada and Cherry   11 150 35.81
14
22
18247 Arrangement Validity   11 211 35.82
17
21
15569 Antisymmetry   2 307 35.84
17
34
3981 Shortest Regular Bracket   80 35.85
5468 Going to school   8 317 35.85
15
34
35284 Digit Root   12 102 35.85
14
19
300 Cable TV Network   2 634 35.86
24
30
26179 Windy Cannon   8 291 35.86
5
2
10405 Shooting the balloons!   11 326 35.88
23
27
9433 Buzzwords   1 76 35.89
26
26
5522 Buy Your House   12 35.90
15573 Keyboard   13 35.90
16244 Kusac   6 400 35.90
14
21
4454 Brackets II   8 411 35.91
26
24
4185 Cube   52 35.93
1456 The Secret of a Lost City   17 35.94
18662 Product of factorials (again)   3 75 35.94
11
24
9098 Long Common Subsequence   2 190 35.96
34
17
28600 One Punch Man   4 68 35.96
17
17
207 Three-coloring of binary trees   16 875 35.96
20
17
5450 Tiles of Tetris, Not!   15 3152 35.96
4
5
1839 The Bookcase   1 121 35.96
4201 Coder Ratings   26 1386 35.98
15
18
4156 PLAHTE   63 36.00
27491 Bidding Game   5 36.00
2735 Simplify the Railroad System   56 36.02
17
1
1845 Mice and Maze   99 5396 36.03
10
10
23153 Equivalent Passwords   9 71 36.04
21
14
15506 Helping Igor   5 97 36.04
15
12
33263 Ada and Tomel   2 35 36.07
26
26
7336 Mastermind   487 36.07
7696 Encryption   3 970 36.08
17
17

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