Submission #1334639

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Source Code Expand

#include <bits/stdc++.h>
#define rep(i, n) for (int i = 0; i < (n); i++)
#define shosu(n) setprecision(n)
#define INF 1000000000;
using namespace std;
int main() {
  long long N, M;
  cin >> N >> M;
  if (2 * N >= M)
    cout << M / 2 << endl;
  if (2 * N < M)
    cout << N + (M - 2 * N) / 4 << endl;
  return 0;
}

Submission Info

Judge Result