#include <iostream>
#include <cmath>

using namespace std;


void rysuj(char c, int x, int y,
 int tx, int ty, char** tab)
{
    tab[y+ty][x+tx] = c;
}

int main()
{
    int r;
    char** board;
    cout << "Podaj promien ";
    cin >> r;

    board = new char*[2*r+1];
    for (int i = 0; i < r*2+1; i++)
    {
        board[i] = new char[2*r+1];
        for (int j = 0; j < r*2+1; j++)
            board[i][j] = ' ';

    }

    int tx = r;
    int ty = r;
    double widthFactor = 0.5;

    for(int i = -r; i <= r; i++)
    {
           rysuj('#',i,widthFactor*round(sqrt(r*r-i*i)),
           tx,ty,board);
           rysuj('#',i,-widthFactor*round(sqrt(r*r-i*i)),
           tx,ty,board);
    }

    for (int i = 0; i < r*2+1;i++)
    {
           for (int j = 0; j < 2*r+1;j++)
           {
              cout << board[i][j];
           }
           cout << "\n";
    }

    for (int i = 0; i < r*2+1; i++)
        delete[] board[i];
    delete[] board;
}