1A. Theatre Square - Codeforces Solution C++

  Problem Link : 1A. Theatre Square 


✅ C++ Solution :

 
#include<bits/stdc++.h>
using namespace std;

#define 
ll long long int
int main()
{	
    double n,m,a;	
    ll x,y;	
    cin>>n>>m>>a;	
    x=ceil(n/a);	
    y=ceil(m/a);	
    cout<<x*y<<"\n";
}

 

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