Hamming Distance @LeetCode
PROBLEM :
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.
Note:
0 = x, y < 2^31.
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.
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SIMPLE c++ IMPLEMENTATION :
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class Solution {
public:
int hammingDistance(int x, int y) {
int Xor=(x^y) ;
int diff=0 ;
while(Xor){
Xor=(Xor&(Xor-1)) ;
diff++ ;
}
return diff ;
}
};
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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.
Note:
0 = x, y < 2^31.
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.
--------------------------------------------------------------------------------
SIMPLE c++ IMPLEMENTATION :
--------------------------------------------------------------------------------
class Solution {
public:
int hammingDistance(int x, int y) {
int Xor=(x^y) ;
int diff=0 ;
while(Xor){
Xor=(Xor&(Xor-1)) ;
diff++ ;
}
return diff ;
}
};
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