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静态：static用法：是一个修饰符；用于修饰成员（成员变量和成员函数）当成员被静态修饰后，就多了一种调用方式，除了可以被对象调用外，还可以直接被类名调用格式：类名.静态成员静态的特点：1.随着类的加载而加载也就是，说静态会随着类的消失而消失，说明静态的生命周期最长2.优先于对象的存在明确一点：静态... 阅读全文
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Given an array of integers, find two numbers such that they add up to a specific target number.The function twoSum should return indices of the two nu... 阅读全文
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Given a 2D board and a word, find if the word exists in the grid.The word can be constructed from letters of sequentially adjacent cell, where "adjace... 阅读全文
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void temp(int *l,int i,int j){ int t=l[i]; l[i]=l[j]; l[j]=t; }int partition(int *l,int low,int high){ int privotkey=l[low]; whi... 阅读全文
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#include "stdafx.h"void temp(int *l,int i,int j){ l[i]=l[i]^l[j]; l[j]=l[i]^l[j]; l[i]=l[i]^l[j];}//使用异或有个问题，当i和j相等时，不能实现交换的目的void HeapSort_M... 阅读全文
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N个人围一圈报数，数到3 退出，最后一个是几号（1）自定义链表typedef struct Node{ int value; struct Node* next;}Node ,*Link;Link creat(int n){ Link node=new Node; node-... 阅读全文
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Sort a linked list inO(nlogn) time using constant space complexity./** * Definition for singly-linked list. * struct ListNode { * int val; * L... 阅读全文
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Implement strStr().Returns the index of the first occurrence of needle in haystack, or -1 if needle is not part of haystack.class Solution {public: ... 阅读全文
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Given a string, determine if it is a palindrome, considering only alphanumeric characters and ignoring cases.For example,"A man, a plan, a canal: Pana... 阅读全文
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Implementatoito convert a string to an integer.Hint:Carefully consider all possible input cases. If you want a challenge, please do not see below and ... 阅读全文