English
67. Add Binary
Problem Statement
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
andb
consist only of'0'
or'1'
characters.- Each string does not contain leading zeros except for the zero itself.
Solution:
py
class Solution:
def addBinary(self, a: str, b: str) -> str:
sum = bin(int(a, 2) + int(b, 2))
return sum[2:] # remove 0b
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