编辑代码

# coding:utf-8
#JSRUN引擎2.0，支持多达30种语言在线运行，全仿真在线交互输入输出。 
def addBinary(a: str, b: str)-> str:
     i = len(a) - 1
     j = len(b) - 1
     carry = 0
     result = []
     while i >= 0 or j>= 0 or carry > 0:
        a_bit = int(a[i]) if i >= 0 else 0
        b_bit = int(b[j]) if j >= 0 else 0
        total = a_bit + b_bit + carry
        result.append(str(total % 2))
        carry = total // 2
        i -= 1
        j -= 1
     return'' .join(reversed(result))
print(addBinary("1010","1011"))
print(addBinary("11","1"))