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list of classical problems


ID NAME QUALITY USERS ACC % DIFFICULTY C I
137 Partition   17 780 36.67
17
20
136 Transformation   76 36.59
17
17
135 Men at work   1 258 37.99
24
26
134 Phony Primes   1 179 19.18
23
23
132 Help R2-D2!   12 758 29.52
19
16
131 Square dance   313 50.00
1
1
130 Rent your airplane and make money   88 3338 28.60
18
17
123 Paying in Byteland   2 475 46.73
6
17
122 Voracious Steve   1 264 29.48
17
17
121 Timetable   52 14.97
17
17
120 Solitaire   7 349 23.37
26
16
119 Servers   108 19.71
17
17
118 Rhombs   103 46.82
1
34
116 Intervals   5 895 22.50
21
24
115 Family   2 68 11.62
28
28
112 Horizontally Visible Segments   1 154 27.67
17
34
110 Fill the Cisterns   28 1400 31.31
21
20
109 Exchanges   1 123 45.14
34
108 Decoding Morse Sequences   7 807 24.00
24
17
107 Calendar of the Maya   5 130 44.93
21
17
106 Binary Stirling Numbers   3 2620 36.57
4
17
105 Alice and Bob   3 165 27.12
42
42
104 Highways   2 741 19.92
23
28
102 GX Light Pipeline Inc   75 30.85
101 Fishmonger   47 2290 38.08
17
20
100 Tower of Babylon   44 3055 50.54
19
21
99 Bus   181 21.87
34
17
98 Dance Floor   3 713 40.31
12
12
97 Party Schedule   250 8810 36.14
14
16
96 Shopping   46 3038 44.18
15
11
95 Street Parade   317 18130 29.00
14
11
94 Numeral System of the Maya   4 2574 40.50
10
6
92 Cutting off Squares   -1 248 42.40
1
1
91 Two squares or not two squares   79 6000 24.55
11
14
90 Minimizing maximizer   3 365 24.96
17
26
89 Hang or not to hang   1 61 19.26
17
17
88 Which is Next   1 127 20.80
34
34
87 Football   1 59 21.82
17
1
86 November Rain   4 292 17.48
21
21
85 Dice Contest   43 20.89
34
34
84 Shortcut   1 231 31.61
17
9
83 Bundling   1 48 38.41
17
17
82 Easy Problem   4 491 34.74
17
9
78 Marbles   67 7871 34.96
15
13
77 New bricks disorder   1 282 37.73
17
17
76 Editor Inverse   64 17.34
75 Editor   51 39.86
73 Bacterial   1 70 20.03
50
17
71 Tree   3 446 28.53
12
9
70 Relations   1 245 27.19
1
1

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