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list of classical problems


ID NAME QUALITY USERS ACC % DIFFICULTY C I
2009 Cryptography   1 142 4.79
1
34
2019 The Rolling Ball   4 5.48
2022 Truth Or Lie   104 21.17
2023 One Instruction Computer Simulator   47 10.58
42
42
2031 Please help You-Know-Who   39 28.65
2038 Rectangle Tiling   2 116 41.61
1
1
2047 Stone Removing Game   -1 133 37.96
2050 Strange Billboard   10 805 60.55
13
29
2051 Cell Phone   4 161 31.43
28
36
2052 Hexagonal Parcels   76 28.93
2053 Key Task   37 1188 31.78
24
22
2054 Gates of Logic   1 37 22.91
17
17
2055 Weird Numbers   2 346 35.99
17
17
2056 Rectangular Polygon   1 136 48.14
1
17
2058 Reaux! Sham! Beaux!   4 664 32.90
23
6
2059 Robotic Sort   5 740 33.19
28
26
2060 Tough Water Level   36 18.21
2070 Minimum Distance   86 16.85
17
1
2123 Candy I   99 29123 44.23
4
5
2124 Last Non-Zero Digit of Factorials   4 488 25.49
26
34
2125 Number Labyrinth   2 64 25.55
17
17
2127 Rain   4 438 40.61
20
15
2128 K-In-A-Row   6 446 33.76
17
11
2129 Cake   70 21.59
2131 Get Back!   1 55 40.67
17
17
2132 Puzzle   89 32.68
2136 Candy II   2 613 46.00
17
17
2138 Pibonacci   3 48 14.11
26
39
2139 Gossipers   3 602 31.76
21
26
2140 (un)Fair Play   75 38.08
2141 Golden Garden   17 12.20
2142 Arranging Flowers   25 9.87
2143 Dependency Problems   4 521 38.96
17
13
2144 K Edge-disjoint Branchings   9 12.35
2147 Root of a Linear Equation   66 8.90
34
17
2148 Candy III   54 20557 25.33
9
5
2149 Biased Standings   21 3678 33.66
5
5
2150 Counting Subsequences   13 1031 29.42
9
13
2151 Digital Calculator   23 5.69
2152 Hilbert Curve   1 13 16.29
34
34
2153 Internet is Faulty   69 38.54
2154 Kruskal   85 14.03
2157 Anti-Blot System   104 12967 45.24
10
5
2159 Delicious Cake   30 14.64
2160 Here-There   30 24.76
2161 Pixel Shuffle   34 21.03
50
17
2162 Towers of Powers   26 13.87
2171 Ambiguous Codes   1 85 39.47
2172 Ballroom Lights   1 35 32.94
34
17
2173 Car Plates Competition   1 261 42.05
17
17

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