67. Add Binary

难度: Easy

题目描述

Given two binary strings a and b, return their sum as a binary string.

 

Example 1:

Input: a = "11", b = "1"
Output: "100"

Example 2:

Input: a = "1010", b = "1011"
Output: "10101"

 

Constraints:

• 1 <= a.length, b.length <= 104
• a and b consist only of '0' or '1' characters.
• Each string does not contain leading zeros except for the zero itself.

解题思路

代码实现

解决方案

java

class Solution {
    public String addBinary(String a, String b) {
        
    }
}