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DescriptionN (2 <= N <= 8,000) cows have unique brands in the range 1..N. In a spectacular display of poor judgment, they visited the neighborhood 'watering hole' and drank a few too many beers be

Problem E: Bulletin BoardSource file:bulletin.{c, cpp, java}Input file:bulletin.inThe ACM Student Chapter has just been given custody of a number of school bulletin

Problem DescriptionA binary tree is a finite set of vertices that is either empty or consists of a root r and two disjoint binary trees called the left and right subtrees. There are three most imp

Problem DescriptionNow is spring ! The sunshine is warm , the flowers is coming out . How lovely it is! So my classmates and I want to go out for a spring-outing.But we all select courses ours

Problem DescriptionAfter little Jim learned Fibonacci Number in the class , he was very interest in it.Now he is thinking about a new thing -- Fibonacci String .He defines : str[n] = str[n-1

Problem DescriptionNow you are asked to measure a dose of medicine with a balance and a number of weights. Certainly it is not always achievable. So you should find out the qualities which cannot

杭电ACM，HDU 1003 Max Sum 解题报告