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Cleaning Shifts Farmer John is assigning some of his N (1 <= N <= 25,000) cows to do some cleaning chores around the barn. He always wants to have one 阅读全文
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B. New Skateboard time limit per test 1 second memory limit per test 256 megabytes input standard input output standard output Max wants to buy a new 阅读全文
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Protecting the Flowers Time Limit: 2000MS Memory Limit: 65536K Total Submissions: 7812 Accepted: 3151 Description Farmer John went to cut some wood an 阅读全文