[leetcode][67] Add Binary
Given two binary strings, return their sum (also a binary string).
For example,
a = "11"
b = "1"
Return "100".
class Solution(object):
def addBinary(self, a, b):
"""
:type a: str
:type b: str
:rtype: str
"""
a_int = int(a,2)
b_int = int(b,2)
return bin(a_int+b_int)[2:]
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