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list of classical problems (unsolved)


ID NAME QUALITY USERS ACC % DIFFICULTY C I
12151 Pizzamania   28 2187 28.66
5
4
11560 A Summatory   14 1646 26.01
5
4
16248 Clones   6 588 44.15
3
4
16480 Decrypt the message !   3 1046 36.98
8
4
17804 Gopu And Palindromes   8 618 58.93
3
4
2178 He is offside!   5 8447 50.13
3
4
10442 Candy Distribution   22 3931 37.55
2
4
31052 PLAYGAME   6 717 42.82
3
4
1697 Ohgas' Fortune   4 715 64.53
9
4
1868 Making Money   6 801 36.83
8
4
17504 Run length encoding   12 1035 39.22
8
4
34909 Keyword Finder   105 29.60
6
4
42487 The 3n + 1 problem   1 70 27.44
8
4
10509 Cards   78 13539 34.03
4
4
13043 The Mirror of Galadriel   33 5980 64.50
2
3
1699 Numeral System   13 2248 67.37
6
3
1787 Run Length Encoding   7 861 19.62
13
3
8467 GRADE POINT AVERAGE   2 634 30.08
8
3
9122 Diary   4 1066 35.71
12
3
11383 Fast Sum of two to an exponent   1 1067 30.24
6
3
34617 Palindrome Lover   2 179 25.25
3
3
9756 Alaska   24 2939 35.87
5
3
34013 Seetha’s Unique Game   -1 322 59.15
1
3
42049 Maximum Sum of the Array   2 117 8.85
1
3
902 Hangover   57 17908 62.79
3
3
1 Life, the Universe, and Everything   304 223447 33.17
4
3
1025 Fashion Shows   30 27880 46.43
3
3
17110 Black Widow Rings   15 2727 52.18
3
3
8612 Penney Game   38 7743 67.22
4
3
23861 Fingerprints   -4 269 34.41
6
3
3375 Stamps   29 13789 41.72
5
3
4993 Traveling Salesman   8 1043 37.18
14
2
7108 Heptadecimal Numbers   9 1231 35.72
2
2
27561 Greatest Common Divisor Of Three Integers   12 1750 40.35
1
2
26179 Windy Cannon   8 295 36.07
5
2
15437 Tambourine   9 1497 49.95
6
2
7974 What’s Next   53 52000 35.42
2
2
15554 Niceness of the string   12 1170 36.63
7
2
7757 Flowers Flourish from France   12 3177 53.09
7
2
18 The Bytelandian Cryptographer (Act II)   4 666 28.32
25
1
87 Football   1 67 19.23
17
1
92 Cutting off Squares   -1 266 40.31
1
1
131 Square dance   353 50.10
1
1
180 How to pack containers   1 108 36.13
1
1
184 Automatic Teller Machines   1 212 34.19
1
1
204 Sleepwalker   96 26.01
1
1
209 The Map   248 40.22
1
1
210 The Altars   53 15.87
17
1
229 Sorting is easy   1 118 18.11
17
1
236 Converting number formats   154 40.00
1
1

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