简单

上代码

#include<bits/stdc++.h>
using namespace std;
int main(){
	int minn=INT_MAX,maxx=INT_MIN,n;
	cin>>n;
	int a[n];
	for(int i=0;i<n;i++){
		cin>>a[i];
		if(a[i]>maxx)maxx=a[i];
		if(a[i]<minn)minn=a[i];
	}
	cout<<maxx-minn;
}