Submission #3433391

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Source Code Expand

#include <bits/stdc++.h>
using namespace std;
#define int lint
typedef long long lint;
typedef pair<int,int> P;
const int    INF=(int)1e9;
const int    MOD=(int)1e9+7;
const double EPS=(double)1e-10;
struct Accelerate_Cin{
    Accelerate_Cin(){
        cin.tie(0); ios::sync_with_stdio(0);cout<<fixed<<setprecision(20);
    };
};



signed main(){
  int N,M;cin>>N>>M;
  if(N>=(M/2)){
    cout<<(M/2)<<endl;
    return 0;
  }else{
    int ans=N;
    int temp=M-2*N;
    ans+=temp/4;
    cout<<ans<<endl;
  }

  return 0;
}

Submission Info

Judge Result