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使用ctypes在Python中调用C++动态库 入门操作 使用ctypes库可以直接调用C语言编写的动态库，而如果是调用C++编写的动态库，需要使用 关键字对动态库的函数进行声明： 编译得到动态库，在Python代码中调用： 运行上述代码，得到输出： 尝试传递字符串参数 Python代码调用： 查 阅读全文
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Longest Palindromic Subsequence 题解 题目来源：https://leetcode.com/problems/longest palindromic subsequence/description/ Description Given a string s, find 阅读全文
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Single Number 题解 题目来源：https://leetcode.com/problems/single number/description/ Description Given an array of integers, every element appears twice exc 阅读全文
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Trapping Rain Water 题解 题目来源：https://leetcode.com/problems/trapping-rain-water/description/ Description Given n non-negative integers representing an e 阅读全文
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Sum 系列题解 Two Sum题解 题目来源：https://leetcode.com/problems/two sum/description/ Description Given an array of integers, return indices of the two numbers s 阅读全文
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N Queens 系列题解 题目来源： "N Queens" "N Queens II" N Queens The n queens puzzle is the problem of placing n queens on an n×n chessboard such that no two que 阅读全文
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Set Matrix Zeroes 题解 题目来源：https://leetcode.com/problems/set matrix zeroes/description/ Description Given a m x n matrix, if an element is 0, set its e 阅读全文
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Search in Rotated Sorted Array 系列题解 题目来源： "Search in Rotated Sorted Array" "Search in Rotated Sorted Array II" 第一版 Suppose an array sorted in ascendin 阅读全文
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Recover Binary Search Tree 题解 题目来源：https://leetcode.com/problems/recover binary search tree/description/ Description Two elements of a binary search t 阅读全文
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Flatten Binary Tree to Linked List 题解 题目来源：https://leetcode.com/problems/ Description Given a binary tree, flatten it to a linked list in place. Examp 阅读全文
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Combinations 题解 题目来源：https://leetcode.com/problems/combinations/description/ Description Given two integers n and k, return all possible combinations 阅读全文
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Merge Sorted Array 题解 题目来源：https://leetcode.com/problems/merge sorted array/description/ Description Given two sorted integer arrays nums1 and nums2, 阅读全文
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Permutations II 题解 题目来源：https://leetcode.com/problems/permutations ii/description/ Description Given a collection of numbers that might contain duplic 阅读全文
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Rotate Image 题解 题目来源：https://leetcode.com/problems/rotate image/description/ Description You are given an n x n 2D matrix representing an image. Rotat 阅读全文
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Combination Sum 系列题解 题目来源：https://leetcode.com/problems/combination sum/description/ Description Given a set of candidate numbers ( C ) (without dupli 阅读全文
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Implement strStr() 题解 题目来源：https://leetcode.com/problems/implement strstr/description/ Description Implement "strStr()" . Return the index of the firs 阅读全文
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Plus One 题解 题目来源：https://leetcode.com/problems/plus one/description/ Description Given a non negative integer represented as a non empty array of digi 阅读全文
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Minimum Depth of Binary Tree 题解 题目来源：https://leetcode.com/problems/minimum depth of binary tree/description/ Description Given a binary tree, find its 阅读全文
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Permutations 题解 题目来源：https://leetcode.com/problems/permutations/description/ Description Given a collection of distinct numbers, return all possible p 阅读全文
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Search for a Range 题解 题目来源：https://leetcode.com/problems/search for a range/description/ Description Given an array of integers sorted in ascending or 阅读全文
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C++显式类型转换 （注：本文例程改编自《C++ Primer》） 关于类型转换，C++保留了C语言中的类型转换方式，并提供了4中新的类型转换方式。《Effective C++》鼓励我们使用新的转换方式： 第一，它们很容易在代码中被识别出来（不论是人工辨识或使用工具如grep），因而得以简化“找出类 阅读全文
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Path Sum 题解 题目来源：https://leetcode.com/problems/path sum/description/ Description Given a binary tree and a sum, determine if the tree has a root to le 阅读全文
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Convert Sorted List to Binary Search Tree 题解 题目来源：https://leetcode.com/problems/convert sorted list to binary search tree/description/ Description Giv 阅读全文
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Sqrt(x) 题解 题目来源：https://leetcode.com/problems/sqrtx/description/ Description Implement . Compute and return the square root of x. x is guaranteed to b 阅读全文
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Pow(x, n) 题解 题目来源：https://leetcode.com/problems/powx n/description/ Description Implement "pow(x, n)" . Example Example 1: Example 2: Solution 阅读全文
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Balanced Binary Tree 题解 题目来源：https://leetcode.com/problems/balanced binary tree/description/ Description Given a binary tree, determine if it is heigh 阅读全文
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Convert Sorted Array to Binary Search Tree 题解 题目来源：https://leetcode.com/problems/convert sorted array to binary search tree/description/ Description G 阅读全文
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Construct Binary Tree from Preorder and Inorder Traversal 题解 题目来源：https://leetcode.com/problems/construct binary tree from preorder and inorder traver 阅读全文
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Remove Element 题解 题目来源：https://leetcode.com/problems/remove element/description/ Description Given an array and a value, remove all instances of that 阅读全文
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Letter Combinations of a Phone Number 题解 题目来源：https://leetcode.com/problems/letter combinations of a phone number/description/ Description Given a dig 阅读全文
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Generate Parentheses 题解 题目来源：https://leetcode.com/problems/generate parentheses/description/ Description Given n pairs of parentheses, write a functio 阅读全文
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Valid Parentheses 题解 题目来源：https://leetcode.com/problems/ Description Given a string containing just the characters , , , , and , determine if the inpu 阅读全文
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Binary Tree Zigzag Level Order Traversal 题解 题目来源：https://leetcode.com/problems/binary tree zigzag level order traversal/description/ Description Given 阅读全文
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Binary Tree Level Order Traversal II 题解 题目来源：https://leetcode.com/problems/binary tree level order traversal ii/description/ Description Given a binar 阅读全文
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Partition List 题解 题目来源：https://leetcode.com/problems/partition list/description/ Description Given a linked list and a value x, partition it such that 阅读全文
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Container With Most Water 题解 题目来源：https://leetcode.com/problems/container with most water/description/ Description Given n non negative integers a1, a 阅读全文
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Longest Common Prefix 题解 题目来源：https://leetcode.com/problems/longest common prefix/description/ Description Write a function to find the longest common 阅读全文
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const与指针 当 限定符与指针结合的时候，经常会让人迷惑。本文根据《C++ Primer》上给出的一些解释谈谈自己的理解： 指向常量的指针（pointer to const） 先来看一则书上的示例： 上述示例中， 就是一个指向常量的指针，不能用于改变指向的对象的值。 而要存放一个常量的地址，只能 阅读全文
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Reverse Linked List II 题解 题目来源：https://leetcode.com/problems/reverse linked list ii/description/ Description Reverse a linked list from position m to 阅读全文
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Reverse Linked List 题解 题目来源：https://leetcode.com/problems/reverse linked list/description/ Description Reverse a singly linked list. Solution 解题描述 这道题 阅读全文