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The basic task is simple: given N real numbers, you are supposed to calculate their average. But what makes it complicated is that some of the input n 阅读全文
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Formation is very important when taking a group photo. Given the rules of forming K rows with N people as the following: The number of people in each 阅读全文
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Given a tree, you are supposed to tell if it is a complete binary tree. Input Specification: Each input file contains one test case. For each case, th 阅读全文
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Input our current position and a destination, an online map can recommend several paths. Now your job is to recommend two paths to your user: one is t 阅读全文