leetcode453. Minimum Moves to Equal Array Elements

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:

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]

    public int minMoves(int[] nums) {
        int min = Integer.MAX_VALUE;
        int sum = 0;
        for(int num : nums) {
            min = Math.min(min, num);
            sum += num;
        }
        
        return sum - min * nums.length;
    }