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食物链 Time Limit: 1000MS Memory Limit: 10000K Total Submissions: 115341 Accepted: 35101 Description 动物王国中有三类动物A,B,C，这三类动物的食物链构成了有趣的环形。A吃B， B吃C，C吃A。 现有N个 阅读全文
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Cube Stacking Time Limit: 2000MS Memory Limit: 30000K Total Submissions: 31012 Accepted: 10904 Case Time Limit: 1000MS Description Farmer John and Bet 阅读全文
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A Bug's Life Time Limit: 10000MS Memory Limit: 65536K Total Submissions: 52818 Accepted: 16983 Description Background Professor Hopper is researching 阅读全文