Z 433 Parliament Square Python Hacker Rank Contest

Python Program For Parliament Square

#include <cmath>
#include <cstdio>
#include <vector>
#include <iostream>
#include <algorithm>
using namespace std;


int main() {
    long long int n,m,a,ans;
    cin>>n>>m>>a;
      if(a>n and a>m) cout<<"1"<<endl;
      else{
        if(n%a>0) n = (n/a)+1;
        else n = (n/a);
       if(m%a>0) m = (m/a)+1;
        else m = (m/a);
        ans = n*m;
        cout<<ans<<endl;
     } 
    return 0;
}