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Commita18ffd5

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add: 2 solutions
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‎README.md

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This is the solution collection of my LeetCode problems, most of them are programmed in JavaScript. All JavaScript codes are wrote in ECMAScript 6 standard, each solution file will contain a problem description in the beginning.
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**Progress:28/**
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**Progress:33/**
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| ID| Title| Solution| Difficulty|
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|---| -----| --------| ----------|
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|1|[Two Sum](https://leetcode.com/problems/two-sum/)|[JavaScript](./src/two-sum/res.js)|Easy|
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|2|[Add Two Numbers](https://leetcode.com/problems/add-two-numbers/)|[JavaScript](./src/add-two-numbers/res.js)|Medium|
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|3|[Longest Substring Without Repeating Characters](https://leetcode.com/problems/longest-substring-without-repeating-characters/)|[JavaScript](./src/longest-substring-without-repeating-characters/res.js)|Medium|
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|7|[Reverse Integer](https://leetcode.com/problems/reverse-integer/)|[JavaScript](./src/reverse-integer/res.js)|Easy|
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|11|[Container With Most Water](https://leetcode.com/problems/container-with-most-water/)|[JavaScript](./src/container-with-most-water/res.js)|Medium|
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|13|[Roman to Integer](https://leetcode.com/problems/roman-to-integer/)|[JavaScript](./src/roman-to-integer/res.js)|Easy|
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|17|[Letter Combinations of a Phone Number](https://leetcode.com/problems/letter-combinations-of-a-phone-number/)|[JavaScript](./src/letter-combinations-of-a-phone-number/res.js)|Medium|
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|19|[Remove Nth Node From End of List](https://leetcode.com/problems/remove-nth-node-from-end-of-list/)|[JavaScript](./src/remove-nth-node-from-end-of-list/res.js)|Medium|
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|22|[Generate Parentheses](https://leetcode.com/problems/generate-parentheses/)|[JavaScript](./src/generate-parentheses/res.js)|Medium|
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|26|[Remove Duplicates from Sorted Array](https://leetcode.com/problems/remove-duplicates-from-sorted-array/)|[JavaScript](./src/remove-duplicates-from-sorted-array/res.js)|Easy|

‎src/container-with-most-water/res.js

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/**
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* res.js
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*@authors Joe Jiang (hijiangtao@gmail.com)
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*@date 2017-02-27 21:00:54
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*@version $Id$
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*
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* Given n non-negative integers a1, a2, ..., an, where each represents a point at coordinate (i, ai). n vertical lines are drawn such that the two endpoints of line i is at (i, ai) and (i, 0). Find two lines, which together with x-axis forms a container, such that the container contains the most water.
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*
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* Note: You may not slant the container and n is at least 2.
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*
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* Solution Idea: https://discuss.leetcode.com/topic/503/anyone-who-has-a-o-n-algorithm/3
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*
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*@param {number[]} height
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*@return {number}
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*/
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letmaxArea=function(height){
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letsize=height.length,
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maxVal=0,
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left=0,
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right=size-1;
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while(left<right){
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letlVal=height[left],
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rVal=height[right],
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currentVal=minVal(lVal,rVal)*(right-left);
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if(maxVal<currentVal){
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maxVal=currentVal;
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}
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if(lVal>rVal){
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right-=1;
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}else{
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left+=1;
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}
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}
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returnmaxVal;
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};
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letminVal=function(a,b){
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if(a>b){
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returnb;
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}
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returna;
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};
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letmaxVal=function(a,b){
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if(a>b){
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returna;
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}
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returnb;
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};
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/**
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* res.js
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*@authors Joe Jiang (hijiangtao@gmail.com)
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*@date 2017-02-27 22:30:32
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*@version $Id$
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*
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* Given a digit string, return all possible letter combinations that the number could represent.
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*
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* A mapping of digit to letters (just like on the telephone buttons) is given below.
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*
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* Input:Digit string "23"
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*
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* Output: ["ad", "ae", "af", "bd", "be", "bf", "cd", "ce", "cf"].
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* Note:
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* Although the above answer is in lexicographical order, your answer could be in any order you want.
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*
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*@param {string} digits
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*@return {string[]}
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*/
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letletterCombinations=function(digits){
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letsize=digits.length,
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mapping=["","","abc","def","ghi","jkl","mno","pqrs","tuv","wxyz"],
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res=[''];
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for(leti=0;i<size;i++){
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letcurrentVal=digits[i]-'0';
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if(currentVal>1&&currentVal<10){
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lettmp=[],
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maplen=mapping[currentVal].length,
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reslen=res.length;
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for(letj=0;j<reslen;j++){
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tmp.push(res[j]);
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}
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res=[];
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for(letj=0;j<reslen;j++){
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for(letk=0;k<maplen;k++){
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res.push(tmp[j]+mapping[currentVal][k]);
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}
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}
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}
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}
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if(size<1||(res.length===1&&res[0]==='')){
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return[];
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}
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returnres;
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};

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