minimum-moves-to-equal-array-elements

https://leetcode.com/problems/minimum-moves-to-equal-array-elements/

package com.company;

import java.util.*;

class Solution {
    public int minMoves(int[] nums) {
        // 关键是要想到方法
        // 先把第一个和第二个抹平,再把第二个第三个抹平,依次类推
        Arrays.sort(nums);
        int ret = 0;
        int acc = 0;
        for (int i=1; i<nums.length; i++) {
            acc += nums[i] - nums[i-1];
            ret += acc;
        }
        return ret;
    }
}

public class Main {

    public static void main(String[] args) throws InterruptedException {

        System.out.println("Hello!");
        Solution solution = new Solution();

        // Your Codec object will be instantiated and called as such:
        int[] nums = {1,2,3};
        int ret = solution.minMoves(nums);
        System.out.printf("ret:%d\n", ret);

        System.out.println();

    }

}