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xiaoxin juju needs helpTime Limit: 1000MS Memory Limit: 65536KB 64bit IO Format: %I64d & %I64uSubmit Status DescriptionAs we all known, xiaoxin is a b 阅读全文
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排列组合 Time Limit: 1000MS Memory Limit: 32768KB 64bit IO Format: %I64d & %I64u Submit Status Description 有n种物品,并且知道每种物品的数量。要求从中选出m件物品的排列数。例如有两种物品A,B,并且数 阅读全文
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Train Problem II Time Limit: 1000MS Memory Limit: 32768KB 64bit IO Format: %I64d & %I64u Submit Status Description As we all know the Train Problem I, 阅读全文
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找单词 Time Limit: 1000MS Memory Limit: 32768KB 64bit IO Format: %I64d & %I64u Submit Status Description 假设有x1个字母A, x2个字母B,..... x26个字母Z,同时假设字母A的价值为1,字母B 阅读全文