思路

排序之后输出开头和结尾即可

#include <bits/stdc++.h>

using namespace std ; 

const int N = 1e4 + 5 ;

int n ;

int main ( ) {

    while ( cin >> n ) {

        int s[N] ;
        for ( int i = 1 ; i <= n ; i ++ ) cin >> s[i] ;

        sort ( s + 1 , s + n + 1 ) ;

        cout << s[n] << ' ' << s[1] << endl ;

    }

    return 0 ;

}