Leetcode-Easy是Leecode难度为"Easy"的解法,由python编码实现。
class Solution(object):
def hammingDistance(self, x, y):
"""
:type x: int
:type y: int
:rtype: int
"""
result = 0
bx = bin(x)[2:][::-1]
by = bin(y)[2:][::-1]
if len(bx) <= len(by):
bx, by = by, bx
diff = len(bx) - len(by)
for i in range(diff):
by += '0'
for i in range(len(bx)):
if by[i] != bx[i]:
result += 1
return result
另一种方法就是通过x和y的异或运算,统计1的个数。
def hammingDistance(self, x, y):
"""
:type x: int
:type y: int
:rtype: int
"""
return bin(x^y).count('1')