随笔分类 - PAT
摘要：明天就要考PAT,为了应付期末已经好久没有刷题了啊啊啊啊,今天开了一道最短路,状态不是很好 1.没有读清题目要求,或者说没有读完题目,明天一定要注意 2.vis初始化的时候从1初始化到n,应该从0开始,以后初始化就从0到n即可 题目大意：给一张地图，两个结点中既有距离也有时间，有的单行有的双向，要求
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摘要：PAT 1030 最短路最小边权 堆优化dijkstra+DFS 1030 Travel Plan (30 分) A traveler's map gives the distances between cities along the highways, together with the cos
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摘要：1107 Social Clusters (30 分) When register on a social network, you are always asked to specify your hobbies in order to find some potential friends wi
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摘要：最近刷PAT老是碰到这种憨批题目,这种题目在算法面试中也是常客了,主要分为4类 已知前序 中序,求后序 已知前序 中序,求层次 已知后序 中序,求前序 已知前序 中序,求层次 而这四种题目如果要做出来的话, 通通不需要建树,因为建树也是按照一定的递归顺序来的,就算是层次遍历,也可以在递归途中保存一些
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摘要：A graph which is connected and acyclic can be considered a tree. The height of the tree depends on the selected root. Now you are supposed to find the
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摘要：A reversible prime in any number system is a prime whose "reverse" in that number system is also a prime. For example in the decimal system 73 is a re
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摘要：A Digital Library contains millions of books, stored according to their titles, authors, key words of their abstracts, publishers, and published years
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摘要：Suppose a bank has N windows open for service. There is a yellow line in front of the windows which devides the waiting area into two parts. The rules
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摘要：It is vitally important to have all the cities connected by highways in a war. If a city is occupied by the enemy, all the highways from/toward that c
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摘要：To evaluate the performance of our first year CS majored students, we consider their grades of three courses only: C Programming Language, Mathematics
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摘要：As an emergency rescue team leader of a city, you are given a special map of your country. The map shows several scattered cities connected by some ro
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摘要：Calculate a + b and output the sum in standard format that is, the digits must be separated into groups of three by commas (unless there are less than
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