题目

题目列表

题号 标题 难度 题目来源 正确数 提交数
1850 Unimodal Palindromic Decompositions D0 Greater New York 2002 2 2
1851 Extended Lights Out D0 Greater New York 2002 4 4
1852 Radar Installation D0 Asia 2002, Beijing (Mainland China) 13 38
1853 Holedox Moving D0 Asia 2002, Beijing (Mainland China) 3 3
1854 Chocolate D0 Asia 2002, Beijing (Mainland China) 2 2
1855 Machine Schedule D0 Asia 2002, Beijing (Mainland China) 2 2
1856 BOAT D0 Southeast Europe 2002 0 2
1857 Grandpa D0 Asia 2002, Tehran (Iran), Preliminary 2 2
1858 Microfiches D0 Asia 2002, Tehran (Iran), Preliminary 0 0
1860 Decoding Morse Sequences D0 Central Europe 2001 2 3
1861 Exchanges D0 Central Europe 2001 0 3
1863 Polar Explorer D0 South Central USA 2002 2 2
1864 Door Man D0 South Central USA 2002 2 2
1866 Safecracker D0 Mid-Central USA 2002 2 4
1867 The Fun Number System D0 Asia 2002, Tehran (Iran), Iran Domestic 1 3
1868 Communication System D0 Asia 2002, Tehran (Iran), Iran Domestic 2 3
1869 Anniversary D0 Asia 2002, Tehran (Iran), Iran Domestic 3 3
1870 Cashier Employment D0 Asia 2000, Tehran (Iran) 2 2
1871 Painting A Board D0 Asia 1999, Tehran (Iran) 2 4
1872 Crossed Matchings D0 Asia 1999, Tehran (Iran) 2 2
1873 Asteroids! D0 South Central USA 2001 2 3
1874 Bone Sort D0 WishingBone's Contest #1 1 4
1875 Surround the Trees D0 Asia 1997, Shanghai (Mainland China) 3 3
1876 Schedule Problem D0 Asia 1996, Shanghai (Mainland China) 4 15
1877 Minimum Transport Cost D0 Asia 1996, Shanghai (Mainland China) 2 2
1878 String Distance and Transform Process D0 Asia 1996, Shanghai (Mainland China) 1 3
1879 Team Them Up! D0 Northeastern Europe 2001 1 8
1880 Cable Master D0 Northeastern Europe 2001 2 2
1881 Wall D0 Northeastern Europe 2001 2 5
1882 Ranklist D0 ZOJ Monthly, December 2002 1 3
1883 Dweep D0 ZOJ Monthly, January 2003 3 3
1884 Namenum D0 ZOJ Monthly, January 2003 2 3
1885 Color the Tree D0 ZOJ Monthly, February 2003 2 2
1886 Playing Cards D0 ZOJ Monthly, February 2003 1 3
1887 Maximum Clique D0 ZOJ Monthly, February 2003 2 3
1888 Best Fit D0 East Central North America 2002 1 4
1889 Increasing Sequences D0 East Central North America 2002 2 2
1890 Pre-Post-erous! D0 East Central North America 2002 2 2
1891 Knockout Tournament D0 East Central North America 2002 1 1
1892 Plugged In D0 East Central North America 2002 1 3
1893 Word Puzzles D0 Southwestern Europe 2002 1 3
1894 Water Treatment Plants D0 Southwestern Europe 2002 1 2
1895 Uncle Tom's Inherited Land D0 South America 2002, Practice 2 2
1896 Supermarket D0 South America 2002 2 3
1897 Air Raid D0 Asia 2002, Dhaka (Bengal) 2 6
1898 Lucky Ticket D0 3 11
1899 Labyrinth A D0 2 8
1900 Censored! D0 Northeastern Europe 2001, Northern Subregion 2 5

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