Submission #1116718

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Source Code Expand

#pragma comment(linker, "/STACK:1024000000,1024000000")
#include <iostream>
#include <cstdio>
#include <cstring>
#include <algorithm>
#include <cmath>
#include <vector>
#include <set>
#include <map>
#include <string>
using namespace std;
#define LL long long
const LL two=2;
int main()
{
  //  freopen("in.txt","r",stdin);freopen("out.txt","w",stdout);
    LL n,m,a,ans=0;
    cin>>n>>m;
    a=min(n,m/2);
    ans+=a;
    n-=a,m-=a*two;
    if (!n) ans+=m/4; 
    cout<<ans<<endl;
  //  system("pause");
    return 0;
}

Submission Info

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