Program to print circle pattern
Given a positive integer n i.e, radius of the circle, print a circle using stars.
Examples :
Input : n = 3
Output :
***
* *
* *
* *
* *
* *
***
Input : n = 6
Output :
*****
** **
** **
* *
* *
* *
* *
* *
* *
* *
** **
** **
*****
CPP
// C++ implementation to print circle pattern #include <bits/stdc++.h> using namespace std; // function to print circle pattern void printPattern(int radius) { // dist represents distance to the center float dist; // for horizontal movement for (int i = 0; i <= 2 * radius; i++) { // for vertical movement for (int j = 0; j <= 2 * radius; j++) { dist = sqrt((i - radius) * (i - radius) + (j - radius) * (j - radius)); // dist should be in the range (radius - 0.5) // and (radius + 0.5) to print stars(*) if (dist > radius - 0.5 && dist < radius + 0.5) cout << "*"; else cout << " "; } cout << "\n"; } } // Driver Code int main() { int radius = 6; printPattern(radius); return 0; } |
Java
// Java implementation to print circle pattern class GFG { // function to print circle pattern static void printPattern(int radius) { // dist represents distance to the center double dist; // for horizontal movement for (int i = 0; i <= 2 * radius; i++) { // for vertical movement for (int j = 0; j <= 2 * radius; j++) { dist = Math.sqrt((i - radius) * (i - radius) + (j - radius) * (j - radius)); // dist should be in the range (radius - 0.5) // and (radius + 0.5) to print stars(*) if (dist > radius - 0.5 && dist < radius + 0.5) System.out.print("*"); else System.out.print(" "); } System.out.print("\n"); } } // Driver code public static void main(String[] args) { int radius = 6; printPattern(radius); } } // This code is contributed by Anant Agarwal. |
Python3
# Python implementation # to print circle pattern import math # function to print circle pattern def printPattern(radius): # dist represents distance to the center # for horizontal movement for i in range((2 * radius)+1): # for vertical movement for j in range((2 * radius)+1): dist = math.sqrt((i - radius) * (i - radius) + (j - radius) * (j - radius)) # dist should be in the # range (radius - 0.5) # and (radius + 0.5) to print stars(*) if (dist > radius - 0.5 and dist < radius + 0.5): print("*",end="") else: print(" ",end="") print() # Driver code radius = 6printPattern(radius) # This code is contributed # by Anant Agarwal. |
C#
// C# implementation to print circle pattern using System; class GFG { // function to print circle pattern static void printPattern(int radius) { // dist represents distance to the center double dist; // for horizontal movement for (int i = 0; i <= 2 * radius; i++) { // for vertical movement for (int j = 0; j <= 2 * radius; j++) { dist = Math.Sqrt((i - radius) * (i - radius) + (j - radius) * (j - radius)); // dist should be in the range // (radius - 0.5) and (radius + 0.5) // to print stars(*) if (dist > radius - 0.5 && dist < radius + 0.5) Console.Write("*"); else Console.Write(" "); } Console.WriteLine(""); } } // Driver code public static void Main() { int radius = 6; printPattern(radius); } } // This code is contributed by vt_m. |
PHP
<?php // PHP implementation to print // circle pattern // Function to print circle pattern function printPattern($radius) { // dist represents distance // to the center $dist = 0.0; // for horizontal movement for ($i = 0; $i <= 2 * $radius; $i++) { // for vertical movement for ($j = 0; $j <= 2 * $radius; $j++) { $dist = sqrt(($i - $radius) * ($i - $radius) + ($j - $radius) * ($j - $radius)); // dist should be in the range // (radius - 0.5) and (radius + 0.5) // to print stars(*) if ($dist > $radius - 0.5 && $dist < $radius + 0.5) echo "*"; else echo " "; } echo "\n"; } } // Driver Code $radius = 6; printPattern($radius); // This code is contributed by Mithun Kumar ?> |
Output :
*****
** **
** **
* *
* *
* *
* *
* *
* *
* *
** **
** **
*****
