UVa 12342 Tax Calculator Solution

#include<iostream>

using namespace std;

int main()
{
    long long int n,t,i=1;
    double k,m,r;
    cin>>t;

    while(t--)
    {
        cin>>k;

   if(k<=180000.0) r=0.0;
   else
    if(k>180000.0&&k<=480000.0)
     r=(k-180000.0)*0.1;

    else
      if(k>480000.0&&k<=880000.0)
        r=((k-480000.0)*0.15)+30000.0;

    else
      if(k>880000.0&&k<=1180000.0)
          r=((k-880000.0)*0.2)+90000.0;

    else
     if(k>1180000)
       r=((k-1180000.0)*0.25)+150000.0;


    if(r>0.0&&r<2000.0)r=2000.0;

      n=static_cast<int>(r);//cout<<n<<endl<<r<<endl;
         if(n<r)n++;

cout<<"Case "<<i++<<": "<<n<<endl;

    }

    return 0;
}