CPP

fast i/o in c++

ios_base::sync_with_stdio(false);
    cin.tie(NULL);

c++ fast

#include <bits/stdc++.h>
using namespace std;
#define fast ios_base::sync_with_stdio(false);cin.tie(NULL);cout.tie(NULL)
int main()
{
    fast;
    return 0;
}

fast i/o in c++

//fast i/o in c++
ios_base::sync_with_stdio(false);
cin.tie(NULL);