/* 3. Longest Substring without Repeating Characters
 * O(n) time, O(1) space - two iterations
 */

public class Solution {

}

@@ -116,12 +116,71 @@
 lution %7B
+%0A  public int lengthOfLongestSubstring(String s) %7B%0A    %0A  %7D
 %0A%0A%7D%0A

update 3