题解 | 鸡兔同笼

#include <iostream>
using namespace std;

int main() {
    int n;
    while(cin>>n){
        int max,min;
        if(n%2==0) max=n/2;
        else if(n%2!=0){
            max=0;
            min=0;
            cout<<min<<" "<<max<<endl;
            continue;
        }
        if(n%4==0) min=n/4;
        else if(n%4==2) min=n/4+1;
        else{
            max=0;
            min=0;
            cout<<min<<" "<<max<<endl;
            continue;
        }
        cout<<min<<" "<<max<<endl;
    }
    return 0;
}