Codeforces 758A Holiday Of Equality

版权声明：本文为博主原创文章，未经博主允许不得转载。 https://blog.csdn.net/polanwind/article/details/84169751

#define _CRT_SECURE_NO_WARNINGS
#include <iostream>
#include <cstdio>
#include <math.h>
#include <string>

using namespace std;



int main() {
	int n;
	scanf("%d", &n);
	int ans = 0;
	int maxn = -1;
	for (int i = 1;i <= n;++i) {
		int a;
		scanf("%d", &a);
		ans += a;
		if (a > maxn) {
			maxn = a;
		}
	}
	printf("%d\n", (n - 1)*maxn - (ans - maxn));
	//system("pause");
	return 0;
}