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全部文章 / PAT （共54篇）

PAT(散列)——1050. String Subtraction (20)

Given two strings S1 and S2, S = S1 – S2 is defined to be the remaining string after taking all the characters in S2 from S1. Your task is simply to c...

PAT

2019-01-30

0 410

PAT(散列)——1048 Find Coins （25 分）

Eva loves to collect coins from all over the universe, including some other planets like Mars. One day she visited a universal shopping mall which cou...

PAT

2019-01-30

0 374

PAT(dfs)——1103. Integer Factorization (30)

The K-P factorization of a positive integer N is to write N as the sum of the P-th power of K positive integers. You are supposed to write a program t...

2019-01-30

0 647

PAT(图)——1076. Forwards on Weibo (30)

Weibo is known as the Chinese version of Twitter. One user on Weibo may have many followers, and may follow many other users as well. Hence a social n...

PAT

2019-01-29

0 445

PAT(图)——1072 Gas Station （30 分）

1072 Gas Station （30 分） A gas station has to be built at such a location that the minimum distance between the station and any of the residential hous...

PAT

2019-01-29

0 804

PAT(图)——1034 Head of a Gang （30 分）

1034 Head of a Gang （30 分） One way that the police finds the head of a gang is to check people’s phone calls. If there is a phone call between A and B...

2019-01-23

0 370

PAT(树)——1115 Counting Nodes in a BST （30 分）

1115 Counting Nodes in a BST （30 分） A Binary Search Tree (BST) is recursively defined as a binary tree which has the following properties: The left s...

PAT

2019-01-21

0 579

PAT(树)——1106 Lowest Price in Supply Chain （25 分）

1106 Lowest Price in Supply Chain （25 分） A supply chain is a network of retailers（零售商）, distributors（经销商）, and suppliers（供应商）-- everyone involved in m...

2019-01-21

0 520

PAT(树)——1102 Invert a Binary Tree （25 分）

1102 Invert a Binary Tree （25 分） The following is from Max Howell @twitter: Google: 90% of our engineers use the software you wrote (Homebrew), but y...

PAT

2019-01-21

0 467

PAT(树)——1094 The Largest Generation （25 分）

1094 The Largest Generation （25 分） A family hierarchy is usually presented by a pedigree tree where all the nodes on the same level belong to the same...

PAT

2019-01-21

0 438