Submission #1117517

---

Source Code Expand

#include<iostream>
#include<string>
using namespace std;
int main(){
    int N,M;
    cin >> N >> M;
    if (M<2)
        cout << 0<< endl;
    else if (N*2 >= M)
        cout << int(M/2)<< endl;
    else
        cout << N+int((M-2*N)/4)<< endl;

        
    return 0;
}

Submission Info

Judge Result