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list of classical problems


ID NAME QUALITY USERS ACC % DIFFICULTY C I
2022 Truth Or Lie   104 21.17
2019 The Rolling Ball   4 5.48
2009 Cryptography   1 142 4.79
1
34
2008 Dab of Backpack   17 674 23.80
21
17
2007 Another Very Easy Problem! WOW!!!   17 792 39.04
13
28
2006 Load Balancing   19 1910 47.55
11
19
2005 Minus Operation   8 307 33.47
30
30
2002 Random Number Generator   98 40.62
2000 Boxes (Hard)   2 17 2.95
26
34
1991 Another Continuous Fractions Problem   1 84 19.97
34
17
1966 Ski Valley   117 18.43
1965 Set Cover   2 25 10.92
1
17
1964 Tree cut   149 38.10
1963 Image Projections   109 34.26
1962 Circles   62 20.12
1961 Roman Roads   1 103 31.59
9
17
1960 Rectangles   4 173 16.61
34
28
1881 Instruction Decoder   2 668 50.81
17
17
1880 Hanoi Calls   205 54.44
1879 Game Time   1 101 22.17
34
34
1878 Farmers Cattle   1 57 36.89
34
34
1877 Enrich my purse   153 27.01
1876 Dragon Curves   2 176 50.23
1
17
1875 Cool Numbers   7 169 30.30
34
34
1874 Burrows Wheeler Precompression   1 426 34.07
17
26
1873 Accumulate Cargo   2 91 26.79
34
9
1871 Making A Budget   15 874 48.58
12
15
1870 Making Labels   -2 1700 59.54
2
10
1869 Making Mountains Out Of Molehills   1 17 17.05
34
17
1868 Making Money   6 801 36.83
8
4
1866 Making Pals   2 203 43.86
9
17
1865 Making Waves   -1 191 43.83
17
6
1847 No Change   37 1684 36.16
11
14
1846 Project File Dependencies   25 2150 41.10
14
15
1845 Mice and Maze   100 5568 35.93
10
10
1843 Leonardo Notebook   3 381 34.80
17
34
1842 Lineland Airport   37 18.84
1841 Prime Path   338 10594 57.99
19
18
1840 Printer Queue   26 2995 48.08
14
9
1839 The Bookcase   2 131 37.88
17
34
1838 Ticket to Ride   91 41.94
17
34
1837 Pie   60 4129 30.45
18
15
1835 The SetStack Computer   1 170 28.83
26
17
1833 Sudoku   1 54 30.66
17
17
1825 Free tour II   1 571 14.29
26
34
1815 Problems Collection (Volume X)   77 7.26
1812 Longest Common Substring II   16 2100 18.39
30
28
1811 Longest Common Substring   37 3529 22.38
20
19
1810 Nuclear Plants   22 11.90
17
17
1805 Largest Rectangle in a Histogram   229 8756 28.41
18
23

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