package leetcode.num3.java; public class Main { static void lengthOfLongestSubstring(String s) { char[] charArray = s.toCharArray(); int[] locArray = new int[charArray.length]; for(int i = 0; i < locArray.length; i++) { locArray[i] = i + 1; } for(int i = 0; i < charArray.length; i++) { for(int j = i - 1; j >= 0; j--) { if(charArray[i] == charArray[j]) { locArray[i] = i - j; break; } } } } }