【LeetCode】462. Minimum Moves to Equal Array Elements II

Given a non-empty integer array, find the minimum number of moves required to make all array elements equal, where a move is incrementing a selected element by 1 or decrementing a selected element by 1.

You may assume the array's length is at most 10,000.

Example:

Input:
[1,2,3]

Output:
2

Explanation:
Only two moves are needed (remember each move increments or decrements one element):

[1,2,3]  =>  [2,2,3]  =>  [2,2,2]

题意：

用最小的操作使数组中所有的值相等。

思路：

排序，找出数组中所有的值和索引中间位的插值的绝对值的和

这个题是用Python写的，这次见识Python的高效了，

 class Solution(object):
     def minMoves2(self, nums):
         """
         :type nums: List[int]
         :rtype: int
         """
         nums.sort()
         mid=nums[len(nums)/2]
         return sum(abs(mid-num) for num in nums)