ID 题目 显示标签 隐藏标签 AC / 尝试 难度
1977 P2936   [USACO09JAN] Total Flow S 0 / 0 5
1978 P2937   [USACO09JAN] Laserphones S 0 / 0 4
1979 P2938   [USACO09FEB] Stock Market G 0 / 0 4
1980 P2939   [USACO09FEB] Revamping Trails G 0 / 0 4
1981 P2940   [USACO09FEB] The Leprechaun S 0 / 0 5
1982 P2941   [USACO09FEB] Surround the Islands S 0 / 0 5
1983 P2942   [USACO09MAR] Moon Mooing G 0 / 0 3
1984 P2943   [USACO09MAR] Cleaning Up G 0 / 0 5
1985 P2944   [USACO09MAR] Earthquake Damage 2 G 0 / 0 6
1986 P2945   [USACO09MAR] Sand Castle S 0 / 0 2
1987 P2946   [USACO09MAR] Cow Frisbee Team S 0 / 0 3
1988 P2947   [USACO09MAR] Look Up S 0 / 0 3
1989 P2948   [USACO09OPEN] Ski Lessons G 0 / 0 5
1990 P2949   [USACO09OPEN] Work Scheduling G 0 / 0 4
1991 P2950   [USACO09OPEN] Bovine Embroidery G 0 / 0 5
1992 P2951   [USACO09OPEN] Hide and Seek S 0 / 0 3
1993 P2952   [USACO09OPEN] Cow Line S 0 / 0 2
1994 P2953   [USACO09OPEN] Cow Digit Game S 0 / 0 4
1995 P2954   [USACO09OPEN] Grazing2 S 0 / 0 4
1996 P2955   [USACO09OCT] Even? Odd? G 0 / 0 1