lina2014

摘要： Given an array of integers, every element appears three times except for one, which appears exactly once. Find that single one.Note:Your algorithm sho 阅读全文

摘要： Given an array of integers, every element appears twice except for one. Find that single one. 阅读全文

摘要： Given a list of non negative integers, arrange them such that they form the largest number.For example, given [3, 30, 34, 5, 9], the largest formed nu 阅读全文

摘要： 1、两个队列实现，始终保持一个队列为空即可 2、一个队列实现栈 阅读全文

摘要： 1 class MyQueue { 2 public: 3 /** Initialize your data structure here. */ 4 MyQueue() { 5 6 } 7 8 /** Push element x to the back of queue. */ 9 void push(in... 阅读全文

摘要： Given two words word1 and word2, find the minimum number of steps required to make word1 and word2 the same, where in each step you can delete one cha 阅读全文

摘要： 1、非递归解法 2、递归解法 阅读全文

摘要： 1 /** 2 * Definition for a binary tree node. 3 * struct TreeNode { 4 * int val; 5 * TreeNode *left; 6 * TreeNode *right; 7 * TreeNode(int x) : val(x), left(NULL), right(N... 阅读全文

摘要： Sort a linked list in O(n log n) time using constant space complexity. 单链表排序 快排 & 归并排序 （1）归并排序 （2）快速排序 ①.使第一个节点为中心点；②.创建2个指针(first，second)，first指向头结点， 阅读全文

摘要： Implement int sqrt(int x).Compute and return the square root of x.x is guaranteed to be a non-negative integer.Example 1:Input: 4Output: 2Example 2:In 阅读全文