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list of classical problems (unsolved)


ID NAME QUALITY USERS ACC % DIFFICULTY C I
3112 Strings   1 269 31.38
17
34
3390 Tribe Council   1 63 21.41
34
34
3415 Shrinking Polygons   1 237 19.53
17
34
3426 Ouroboros Snake   2 86 52.26
26
34
3488 The Top-Code   1 60 21.73
17
34
3545 Najkraci   6 188 28.92
28
34
3565 Choosing Gloves   3 89 23.25
17
34
3577 Parity   3 83 19.98
17
34
3578 Hashing   1 43 12.06
34
34
3581 Tree Similarity   1 26 37.66
34
34
3725 Taming a T-REX   1 151 44.34
34
3734 Periodni   2 667 39.10
26
34
3863 Area of circles   1 314 29.41
34
34
3872 Party At School   1 58 24.87
34
34
3897 Convex Polygons   2 124 30.86
17
34
3899 Finding Fractions   1 174 29.46
17
34
3902 Fight with functions   3 21 6.47
42
34
3912 Color a tree   1 298 31.76
17
34
3930 Group Partition   1 71 30.23
34
34
4000 GALLUP   1 70 46.54
17
34
4100 Sum of Vectors   -1 103 29.60
50
34
4155 OTOCI   2 512 45.42
26
34
4182 Candy (Again)   2 236 18.78
34
34
4195 GCD Determinant   1 273 45.30
1
34
4204 Showstopper   1 89 22.45
17
34
4305 Drilling   3 121 20.15
17
34
4306 The way to Bytemountain   1 35 41.49
34
34
4429 Spelling Lists   2 194 32.41
17
34
4456 Jumbo Airlines   2 76 36.79
34
34
4569 Let go to the movies   -3 161 18.26
50
34
4656 Cross Mountain Climb   1 72 31.44
17
34
4667 Gremlins   3 56 29.10
28
34
4871 Bridge   2 161 24.59
1
34
4881 Words on graphs   108 11.94
34
4948 Integer Factorization (29 digits)   8 124 14.80
40
34
4951 Bridges! More bridges!   1 47 16.63
1
34
5196 Monotonous numbers   6 635 48.16
4
34
5296 Air Combat   -1 71 15.71
34
5467 Finding password   6 187 17.06
26
34
5468 Going to school   9 330 36.17
17
34
5511 Heavy Sequences   -1 84 18.41
34
34
5649 Divide Polygon   3 48 22.95
9
34
5673 Fractions on Tree ( reloaded !)   2 248 38.33
26
34
5830 Alternating Permutations   1 65 39.22
34
34
5911 Square-free Integers Factorization   1 20 30.67
17
34
5975 Travelling Knight   2 54 32.69
34
34
6035 Dinner   4 164 27.30
9
34
6072 Chocolate   161 21.61
17
34
6170 Homecoming   1 32 30.77
17
34
6221 Increasing Powers of K   4 360 27.59
24
34

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