Solved Maximizing XOR

max_xor/max_xor.py

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+#!/usr/bin/python3
+
+# https://www.hackerrank.com/challenges/maximizing-xor
+
+import sys
+
+def max_xor(L,R):
+	res = 1
+	n = L ^ R
+	while n > 0:
+		n >>=1
+		res <<= 1
+	return res - 1
+
+def main():
+	L = int(sys.stdin.readline())
+	R = int(sys.stdin.readline())
+	print(max_xor(L,R))
+
+if __name__ == '__main__':
+	main()