摘要：
Cleaning Shifts Time Limit: 1000MS Memory Limit: 65536K Total Submissions: 40751 Accepted: 9871 Description Farmer John is assigning some of his N (1 阅读全文
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Tian Ji -- The Horse Racing Time Limit: 5000MS Memory Limit: 65536K Total Submissions: 17699 Accepted: 5461 Description Here is a famous story in Chin 阅读全文
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Evil Straw Warts Live Time Limit: 2000MS Memory Limit: 65536K Total Submissions: 1799 Accepted: 523 Description A palindrome is a string of symbols th 阅读全文