//	 CS 207 Assignment 2
//       
//	 Filename: 	circle.cpp
// 	 
//	 Author: 	Nathan Lutz
//
//	 Instructor: 	Dr. Wang
//	 Due: 
// 	 Compile:	g++ circle.cpp -o circle.out
//	 Run:		./circle.out
//	 Goal: To display a circle of user defined length

#include <iostream>
#include <iomanip>
#include <cmath>
using namespace std;

int main()
{
	 char letter;
	 letter = 'o';
	 int length,b,x,a;
	 double z,y;
	 cout<<"Please enter how long you want the circle to be."<<endl;
	 cin>>length;
	 y=length/2;
	 z=length/2;
	 for(x=0;x<=length/2;x++)
	 {
		 a=int(y);
		 if (y<1)
		 break;
		 b=int(z);
		 cout<<setw(a)<<"";
		 cout<<letter;
  		 cout<<setw(b)<<"";	
		 cout<<letter;
	 	 cout<<endl;
		 y=y/1.3;
		 z=z+y;
	 }
	
	 for(x=length/2;x>=0;x--)
	 {
		 a=int(y);
		 if(y>length/2)
		 break;
		 b=int(z);
		 cout<<setw(a)<<"";
		 cout<<letter;
		 cout<<setw(b)<<"";
		 cout<<letter;
		 cout<<endl;
		 y=y*1.3;
		 z=z-y;
	 }

         getchar();
	 return 0;
}