LeetCode 453. Minimum Moves to Equal Array Elements
题目描述:
Given a non-empty integer array of size n, find the minimum number of moves required to make all array elements equal, where a move is incrementing n - 1 elements by 1.
Example:
1
2
3
4
5
6
7
8
9
10 Input:
[1,2,3]
Output:
3
Explanation:
Only three moves are needed (remember each move increments two elements):
[1,2,3] => [2,3,3] => [3,4,3] => [4,4,4]
有很多种move的策略, 可以任意选择一种. 我的办法是:
- 找到当前的最小值与最大值
- 增加除了该最大值以外的其他元素, 直到最小值与最大值相等
- 如果没有全部相等则回到第一步, 否则结束
这样的话总的move次数应该为每个元素与最小元素之差的和.
1 | class Solution { |