题解 | #鸡兔同笼#

#include <iostream>
using namespace std;

int main() {
    int a;
    while (cin >> a ) { 
        if(a%2==1)cout<<"0 0"<<endl;
        else{
            int maxx=a/2;
            int minn=a/4;
            int remainder=a%4;
            minn+=(remainder/2);
            cout<<minn<<" "<<maxx<<endl;
        }
    }
}