Submission #3620001

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Source Code Expand

#include <bits/stdc++.h>

using namespace std;

using ll = long long;

int main() {
    cin.tie(0); ios::sync_with_stdio(false);

    ll n, m;
    cin >> n >> m;

    ll sum = 0;
    if (2 * n <= m) {
        sum += n;
        m -= 2 * n;
        sum += m / 4;
    }
    else sum = m / 2;

    cout << sum << endl;

    return 0;
}

Submission Info

Judge Result