codeforces 758 A

n 个数

找到最大的 

codeforces中文官网？使得每个数都和最大的相等 

花费求和

#include<stdio.h>
#include<algorithm>
#include<string.h>
#include<math.h>
#include<set>
#include<string>using namespace std;
typedef long long LL;#define inf  10000000000000
#define MAXN 100010int co[MAXN];int main()
{int n;while(scanf("%d",&n)!=EOF){int mx=-1;int ans=0;for(int i=0;i<n;i++){scanf("%d",&co[i]);mx=max(mx,co[i]);}for(int i=0;i<n;i++){ans=ans+mx-co[i];}printf("%d\n",ans);}return 0;
}