Submission #2399223

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Source Code Expand

#include <bits/stdc++.h>
using namespace std;
#define REP(i, n) for(int i = 0; i < n; i++)

int main(){
    long long n, m;
    cin >> n >> m;
    long long ans = 0;
    if(n >= m / 2){
        ans = m / 2;
    }else{
        ans = n;
        m -= n * 2;
        ans += m / 4;
    }
    cout << ans << endl;

    return 0;
}

Submission Info

Judge Result