平均

#include<iostream>
#include<cstdio>
#include<algorithm>
#define N 1000005
#define inf 0x3f3f3f
using namespace std;

int a[N];

int main()
{
    int n;
    int max=-inf;
    scanf("%d",&n);
    for (int i=1;i<=n;i++)
    {
        scanf("%d",&a[i]);
        if (a[i]>max) max=a[i];
    }
    printf("%d",max);
}