Maximizing XOR - Algorythms.py

from operator import xor


def maximizingXor(l, r):
    outpt = []
    for i in range(l, r + 1):
        for j in range(l, r + 1):
            outpt.append(i ^ j)
    return max(outpt)

    # As a one-liner:
    # return max([i ^ j for i in range(l, r + 1) for j in range(i, r + 1)])


if __name__ == '__main__':
    l = int(input())
    r = int(input())
    result = maximizingXor(l, r)
    print(result)

"""
11
100

Output: 127



https://www.hackerrank.com/challenges/maximizing-xor/problem?h_r=next-challenge&h_v=zen

Uitleg XOR: https://gathering.tweakers.net/forum/list_messages/389910
"""