add-binary.py

# -*- coding: utf-8 -*-
"""
Created on Thu Apr  9 02:28:42 2020

@author: johnoyegbite
"""
# SOLVED
"""
Problem:
    Given two binary strings, return their sum (also a binary string).

    The input strings are both non-empty and contains only characters 1 or 0.

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

Example 2:
    Input: a = "1010", b = "1011"
    Output: "10101"


Constraints:
    Each string consists only of '0' or '1' characters.
    1 <= a.length, b.length <= 10^4
    Each string is either "0" or doesn't contain any leading zero.
"""


def addBinary(a, b):
    """
    :type a: str
    :type b: str
    :rtype: str
    """
    return bin(int(a, 2) + int(b, 2))[2:]  # first two characters would be '0b'


if __name__ == "__main__":
    a = "11"
    b = "1"
    print(addBinary(a, b))