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Bad Hair DayTime Limit: 2000MSMemory Limit: 65536KTotal Submissions: 19167Accepted: 6522DescriptionSome of Farmer John's N cows (1 ≤ N ≤ 80,000) are having a bad hair day! Since each c

链接：https://www.nowcoder.com/acm/contest/106/I来源：牛客网It’s universally acknowledged that there’re innumerable trees in the campus of HUST. There is a row of trees along the East-9 Road which con...

Passing the MessageProblem DescriptionWhat a sunny day! Let’s go picnic and have barbecue! Today, all kids in “Sun Flower” kindergarten are prepared to have an excursion. Before kicking off, teacher L...