Given two binary strings, return their sum (also a binary string).

For example,

a = "11"

b = "1"

Return "100".

博主对于自己那冗长的代码真是累感不爱了～连注释都不用标了，特别清晰明了，捂脸逃走～只能安慰自己起码跑过了。。。

 

public class Solution {    public String addBinary(String a, String b) {  String n1=new StringBuilder(a).reverse().toString();         String n2=new StringBuilder(b).reverse().toString();         StringBuilder sb= new StringBuilder();         int l=Math.min(a.length(),b.length());         int carry=0;         int digit=0;         for(int i=0;i
     
      b.length()){           for(int i=l;i