Solution to 'Drawing Book' (HackerRank)

Hi all!

Here's, my solution to the problem 'Drawing Book' from HackerRank.

Question link: https://www.hackerrank.com/challenges/drawing-book/problem

#include <bits/stdc++.h>

#define int long long

#define pb push_back

#define fi first

#define se second

#define pii pair<int,int>

using namespace std;

int32_t main()

{

    ios_base::sync_with_stdio(false);

    cin.tie(NULL);

    cout.tie(NULL);

    int n,p;

    cin>>n;

    cin>>p;

    int ans1=p/2;

    if(n%2==0) n++;

    int ans2=(n-p)/2;

    int ans=min(ans1,ans2);

    cout<<ans;

    return 0;

}