hdu-2673-shǎ崽 OrOrOrOrz(水题)

注意输出格式

#include <iostream> 
#include <algorithm>
using namespace std;
int arr[10000+9];
int main() {
    int n;
    while (cin>>n) {
        for (int i=0; i<n; i++) cin>>arr[i];
        sort(arr, arr+n);
        cout<<arr[n-1];
        for (int i=0; i*2<n-1; i++) {
            if (n-i-2 == i){
                cout<<" "<<arr[i];
                continue;
            }
            cout<<" "<<arr[i]<<" "<<arr[n-i-2];
        }
        cout<<endl;
    } 
    return 0;
}