Ccf-csp 201903-1 small, medium and large

Original link :CCF-CSP 201903-1 Small, medium and large

#include <bits/stdc++.h>
using namespace std;
const int N=2010;

int main()
{
    
    std::ios::sync_with_stdio(false);
    cin.tie(0);
    cout.tie(0);
    int n,a;
    cin>>n;
    vector<int> v;
    for(int i=0;i<n;i++)
    {
    
        cin>>a;
        v.push_back(a);
    }
    sort(v.begin(),v.end());
    cout<<v[n-1]<<" ";
    int mid;
    n/=2;
    if(n&1) mid=v[n]*2;
    else mid=v[n]+v[n-1];
    if(mid>v[0]*2)
    {
    
        if(mid&1)
        {
    
            double mid2=mid/2.0;
            cout<<setiosflags(ios::fixed)<<setprecision(1)<<mid2<<" ";
        }
        else cout<<mid/2<<" ";
        cout<<v[0];
    }
    else
    {
    
        cout<<v[0]<<" ";
        if(mid&1)
        {
    
            double mid2=mid/2.0;
            cout<<setiosflags(ios::fixed)<<setprecision(1)<<mid2;
        }
        else cout<<mid/2;
    }
	return 0;
}