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list of classical problems


ID NAME QUALITY USERS ACC % DIFFICULTY C I
11814 Eko   171 15454 26.59
13
13
35276 Smallest on the Stack   21 891 15.12
11
13
12471 DIE HARD   157 7909 38.90
12
14
2852 Broken Keyboard   19 1197 31.57
14
14
5978 Frequent Prime Ranges   10 698 29.30
14
14
10500 Haybale stacking   22 3302 33.89
10
14
12260 Devlali Numbers   13 719 37.75
20
14
27320 Card Game   13 354 38.52
9
14
32 A Needle in the Haystack   194 11035 38.24
15
14
302 Count on Cantor   155 13010 61.30
13
14
27318 Primal Fear   30 1512 22.17
13
14
3878 Rectangles Perimeter   58 2690 49.81
12
14
11402 The Indian Connection   19 2287 36.20
8
14
14935 Cactus   5 164 19.31
16
14
16281 War   13 1097 48.04
8
14
23153 Equivalent Passwords   9 72 36.19
21
14
27487 Police Men   10 265 43.21
14
14
34502 ZERO TRIPLET   12 77 15.66
17
14
34670 TWISTED ARRAY   -1 197 41.88
2
14
16487 Update the array !   165 4913 38.62
9
14
10283 ALL IZZ WELL   69 3454 31.30
17
14
4164 A conjecture of Paul ErdÅ‘s   23 2246 44.04
16
14
31040 Namit In Trouble   21 776 23.42
14
14
91 Two squares or not two squares   79 6032 24.60
11
14
7150 Palindrome 2000   56 3211 27.27
15
14
26054 BMW   21 617 17.56
13
14
27225 Knight Move   12 448 29.62
15
14
381 106 miles to Chicago   50 3156 36.55
15
14
3033 Help the soldier   18 1243 29.03
12
14
20063 Large subsequence Problem   20 443 41.95
10
14
27381 Emoticon   27 814 50.17
8
14
4564 Chop Ahoy! Revisited!   55 2943 50.84
12
14
10394 Buying Apples!   72 5493 34.86
12
14
4033 Phone List   151 7011 31.56
16
14
56 Dyzio   8 1213 31.46
11
14
260 Containers   3 291 45.99
17
14
413 Word Puzzles   4 368 18.08
30
14
1296 4 values whose sum is 0   64 5067 24.87
18
14
1475 Play with Digit Seven   3 125 36.90
34
14
2127 Rain   3 433 40.34
17
14
3379 String Shuffle   7 394 65.92
17
14
3882 Cijevi   5 258 37.67
30
14
7132 Headshot   7 1393 37.21
8
14
8044 Fantastic Discovery   3 306 42.60
14
14
8917 How Many Plusses   7 176 31.94
11
14
9644 Imperialism   5 172 30.50
8
14
10643 The Nerd Factor   4 203 47.01
1
14
12244 Natalia Has Another Problem   6 110 46.60
17
14
12363 Red And Green   7 249 39.68
8
14
13117 White Hats   9 614 37.51
4
14

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