简单题67.二进制求和 （java）20240919

题目描述：

Java：

class Solution {public String addBinary(String a, String b) {StringBuilder result = new StringBuilder();int i = a.length()-1;int j = b.length()-1;int carry = 0; //记录进位信息while(i>=0 || j>=0 || carry!=0){int sum = carry;if(i>=0){sum += a.charAt(i) - '0';i--;}if(j>=0){sum += b.charAt(j) - '0';j--;}// result.append(sum % 2);carry = sum / 2;}return result.reverse().toString();}
}