Easy Arrays

#include "bits/stdc++.h"

#define faster ios_base::sync_with_stdio(false);cin.tie(NULL);cout.tie(NULL);

#define ll long long int

#define pb push_back

#define f(a) for(ll i = 0;i<a;i++)

#define ffor(i,a,b) for(ll i = a;i<b;i++)

#define rfor(i,a,b) for(ll i = a;i>b;i--)

#define T ll t; cin>>t; while(t--)

#define MOD 1000000007

using namespace std;

int main()

{

    faster

        ll n;

        cin>>n;

        ll maximum=-INF;

        ll minimum=INF;

        f(n)

        {
            ll x;

            cin>>x;

            minimum=min(x,minimum);

            maximum=max(x,maximum);

        }

        cout<<abs(minimum-maximum)<<"\n";

}