标签：char examples == ati style abc and indexof logs
Given a string, find the length of the longest substring without repeating characters.
Examples:
Given "abcabcbb", the answer is "abc", which the length is 3.
Given "bbbbb", the answer is "b", with the length of 1.
Given "pwwkew", the answer is "wke", with the length of 3. Note that the answer must be a substring, "pwke" is a subsequence and not a substring.
1 /** 2 * @param {string} s 3 * @return {number} 4 */ 5 var lengthOfLongestSubstring = function(s) { 6 7 var len = s.length, 8 local =1; 9 max = 1, 10 start = 0; 11 12 //处理""; 13 if(!len){ 14 return 0; 15 } 16 17 18 for(var end = 1;end < len;end++){ 19 20 var c = s.charAt(end); 21 var pattern = s.substring(start,end); 22 var index = pattern.indexOf(c); 23 24 if(index !== -1){ 25 26 local = end - start - index; 27 start = start + index + 1; 28 }else{ 29 local += 1; 30 max = local > max ? local : max; 31 } 32 33 } 34 return max; 35 };
3. Longest Substring Without Repeating Characters
标签：char examples == ati style abc and indexof logs
原文地址：http://www.cnblogs.com/huenchao/p/7630381.html
