Total Hamming Distance - Practice Coding | SlaveCode
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477. Total Hamming Distance
Medium
30 Points
Array
Math
Bit Manipulation
The Hamming distance between two integers is the number of positions at which the corresponding bits are different.
Given an integer array nums, return the sum of Hamming distances between all the pairs of the integers in nums.
Examples
Example 1
Input: nums = [4,14,2]
Output: 6
Explanation: In binary representation, the 4 is 0100, 14 is 1110, and 2 is 0010 (just
showing the four bits relevant in this case).
The answer will be:
HammingDistance(4, 14) + HammingDistance(4, 2) + HammingDistance(14, 2) = 2 + 2 + 2 = 6.
Example 2
Input: nums = [4,14,4]
Output: 4
Constraints
1 <= nums.length <= 104
0 <= nums[i] <= 109
The answer for the given input will fit in a 32-bit integer.
477. Total Hamming Distance
Medium
30 Points
Array
Math
Bit Manipulation
The Hamming distance between two integers is the number of positions at which the corresponding bits are different.
Given an integer array nums, return the sum of Hamming distances between all the pairs of the integers in nums.
Examples
Example 1
Input: nums = [4,14,2]
Output: 6
Explanation: In binary representation, the 4 is 0100, 14 is 1110, and 2 is 0010 (just
showing the four bits relevant in this case).
The answer will be:
HammingDistance(4, 14) + HammingDistance(4, 2) + HammingDistance(14, 2) = 2 + 2 + 2 = 6.
Example 2
Input: nums = [4,14,4]
Output: 4
Constraints
1 <= nums.length <= 104
0 <= nums[i] <= 109
The answer for the given input will fit in a 32-bit integer.