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http://acm.hdu.edu.cn/showproblem.php?pid=2680Problem DescriptionOne day , Kiki wants to visit one of her ... 阅读全文
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http://codeforces.com/gym/102219/problem/EThe main hall of your residency is open for use by the local com... 阅读全文
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http://codeforces.com/gym/102219/problem/KNina works as an IT support in a software company and always bus... 阅读全文
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http://codeforces.com/gym/102219/problem/JYou are given 5 different sizes of kitchen plates. Each plate is... 阅读全文
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http://codeforces.com/gym/102219/problem/AMental rotation is a difficult thing to master. Mental rotation ... 阅读全文