ID Problem Show tags Hide tags AC / Tried Difficulty
1820 P2790  ccj与zrz之积木问题 0 / 0 2
4325 P2791  幼儿园篮球题 0 / 0 7
2710 P2792  [JSOI2008] 小店购物 0 / 0 6
1815 P2793  Facer的工厂 0 / 0 3
1814 P2794  Facer和教官 0 / 0 6
1827 P2795  Facer爱游泳 0 / 0 5
1798 P2796  Facer的程序 0 / 0 3
1800 P2797  Facer的魔法 0 / 0 5
1852 P2798  爆弹虐场 0 / 0 5
1844 P2799  国王的魔镜 0 / 0 2
1845 P2800  又上锁妖塔 0 / 0 2
1723 P2801  教主的魔法 1 / 1 5
1849 P2802  回家 0 / 0 2
1853 P2803  学校选址 II 0 / 0 3
1856 P2804  神秘数字 0 / 0 4
1858 P2805  [NOI2009] 植物大战僵尸 0 / 0 6
1854 P2807  三角形计数 0 / 2 2
1859 P2808  小笼包 0 / 0 5
1860 P2809  hzwer 爱折纸 0 / 0 5
1868 P2810  Catch the theives 0 / 0 4
1869 P2811  Protect the school 0 / 0 5
1870 P2812  校园网络【[USACO] Network of Schools加强版】 0 / 0 5
1871 P2813  母舰 0 / 0 2
1872 P2814  家谱 1 / 1 2
1875 P2815  IPv6地址压缩 0 / 0 3
2436 P2816  宋荣子搭积木 0 / 0 4
2437 P2817  宋荣子的城堡 0 / 0 3
1874 P2818  天使的起誓 0 / 0 2
1876 P2819  图的 m 着色问题 0 / 0 2
1877 P2820  局域网 2 / 2 3
1878 P2821  变幻数 0 / 0 5
1881 P2822  [NOIP 2016 提高组] 组合数问题 2 / 3 3
1861 P2823  时间表 0 / 0 6
1884 P2824  [HEOI2016/TJOI2016] 排序 1 / 3 6
1885 P2825  [HEOI2016/TJOI2016] 游戏 0 / 0 6
1888 P2827  [NOIP 2016 提高组] 蚯蚓 1 / 1 5
1862 P2829  大逃离 0 / 0 6
1863 P2830  写程序 0 / 0 4
1873 P2831  [NOIP 2016 提高组] 愤怒的小鸟 0 / 0 5
1890 P2832  行路难【疑似 std 复杂度有误】 0 / 0 5
1895 P2833  等式 0 / 0 4
8337 P2834  纸币问题 3 0 / 0 2
1889 P2835  刻录光盘 4 / 15 4
1882 P2836  加油问题 0 / 0 5
1879 P2837  [USACO08FEB] Dining Cows B 0 / 0 2
1886 P2838  瓶子国的故事 0 / 0 7
1887 P2839  [国家集训队] middle 2 / 2 6
8336 P2840  纸币问题 2 0 / 0 2
1893 P2841  A*B Problem 0 / 0 5
8335 P2842  纸币问题 1 0 / 0 2
1892 P2843  暗杀 0 / 0 5
1796 P2845  [USACO15DEC] Switching on the Lights S 0 / 0 4
1883 P2846  [USACO08NOV] Light Switching G 1 / 1 4
1894 P2847  [USACO16DEC] Moocast G 0 / 0 3
1896 P2848  [USACO16DEC] Cow Checklist G 0 / 0 4
1891 P2849  [USACO14DEC] Marathon S 0 / 0 3
1897 P2850  [USACO06DEC] Wormholes G 1 / 1 4
1898 P2851  [USACO06DEC] The Fewest Coins G 1 / 1 5
1899 P2852  [USACO06DEC] Milk Patterns G 0 / 0 4
1900 P2853  [USACO06DEC] Cow Picnic S 1 / 1 3
1901 P2854  [USACO06DEC] Cow Roller Coaster S 0 / 0 4
1902 P2855  [USACO06DEC] River Hopscotch S 0 / 0 3
1903 P2856  [USACO06FEB] Cellphones G 0 / 0 4
1904 P2857  [USACO06FEB] Steady Cow Assignment G 0 / 0 6
1905 P2858  [USACO06FEB] Treats for the Cows G/S 3 / 3 3
1906 P2859  [USACO06FEB] Stall Reservations S 0 / 0 4
1907 P2860  [USACO06JAN] Redundant Paths G 0 / 0 5
1908 P2861  [USACO06JAN] Roping the Field G 0 / 0 5
1909 P2862  [USACO06JAN] Corral the Cows G 0 / 0 4
1910 P2863  [USACO06JAN] The Cow Prom S 5 / 5 4
1911 P2864  [USACO06JAN] The Grove S 0 / 0 5
1912 P2865  [USACO06NOV] Roadblocks G 2 / 2 5
1913 P2866  [USACO06NOV] Bad Hair Day S 7 / 16 3
1914 P2867  [USACO06NOV] Big Square S 0 / 0 4
1915 P2868  [USACO07DEC] Sightseeing Cows G 0 / 0 6
1916 P2869  [USACO07DEC] Gourmet Grazers G 0 / 0 5
1917 P2870  [USACO07DEC] Best Cow Line G 1 / 1 5
1918 P2871  [USACO07DEC] Charm Bracelet S 1 / 1 2
1919 P2872  [USACO07DEC] Building Roads S 0 / 0 3
1920 P2873  [USACO07DEC] Mud Puddles S 0 / 0 2
1921 P2874  [USACO07FEB] Building A New Barn G 0 / 0 5
1922 P2875  [USACO07FEB] The Cow Lexicon S 0 / 0 5
1923 P2876  [USACO07JAN] Problem Solving G 0 / 0 5
1924 P2877  [USACO07JAN] Cow School G 0 / 0 6
1925 P2878  [USACO07JAN] Protecting the Flowers S 0 / 0 3
1926 P2879  [USACO07JAN] Tallest Cow S 0 / 0 3
1927 P2880  [USACO07JAN] Balanced Lineup G 4 / 4 3
1928 P2881  [USACO07MAR] Ranking the Cows G 0 / 0 4
1929 P2882  [USACO07MAR] Face The Right Way G 0 / 0 4
1930 P2883  [USACO07MAR] Cow Traffic S 0 / 0 5
1931 P2884  [USACO07MAR] Monthly Expense S 0 / 0 3
1932 P2885  [USACO07NOV] Telephone Wire G 0 / 0 5
1933 P2886  [USACO07NOV] Cow Relays G 0 / 0 5
1934 P2887  [USACO07NOV] Sunscreen G 0 / 0 3
1935 P2888  [USACO07NOV] Cow Hurdles S 0 / 0 3
1936 P2889  [USACO07NOV] Milking Time S 0 / 0 3
1937 P2890  [USACO07OPEN] Cheapest Palindrome G 0 / 0 4
1938 P2891  [USACO07OPEN] Dining G 0 / 0 6
3003 P2892  [NOI2007] 追捕盗贼 0 / 0 7
1940 P2893  [USACO08FEB] Making the Grade G 1 / 1 5

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