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hamming distance

admin 11月 13, 2020 0

Hamming Distance

The Hamming distance between two integers is the number of positions at which the corresponding bits are different.
Given two integers x and y, calculate the Hamming distance.
Example:

Input: x = 1, y = 4
Output: 2
Explanation:
1   (0 0 0 1)
4   (0 1 0 0)
       ↑   ↑
The above arrows point to positions where the corresponding bits are different.

method

x=3
y=4
s1 = []
l1 = []
n =0
while x != 0 or y !=0 :
    s1.append(x % 2)
    l1.append(y % 2)
    x = x // 2
    y = y // 2
s2 = list(reversed(s1))
l2 = list(reversed(l1))
for i in range(0,len(s1)):
    if s2[i] == l2[i]:
        n=n
    else :
        n+=1
print(n)