Program to print pyramid pattern
Last Updated :
22 Jun, 2022
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Write to program to print the pyramid pattern formed of stars
Example :
Input: n = 6
Output:
*
* *
* * *
* * * *
* * * * *
* * * * * *
* * * * *
* * * *
* * *
* *
*
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The idea is to use two for loops for every part of the pyramid. The two parts may be classified as upper part and lower part
// C++ program to print Pyramid pattern
#include<iostream>
using namespace std;
void pattern(int n)
{
// For printing the upper part of the pyramid
for (int i = 1; i < n; i++){
for (int j = 1; j < i+1; j++){
cout <<" * ";
}
cout << endl ;
}
// For printing the lower part of pyramid
for (int i = n; i > 0; i--){
for (int j = i; j > 0; j--){
cout << " * ";
}
cout << endl ;
}
}
// Driver program
int main()
{
pattern(6);
return 0;
}
// C++ program to print Pyramid patternusing namespace std;void pattern(int n){ // For printing the upper part of the pyramid for (int i = 1; i < n; i++){ for (int j = 1; j < i+1; j++){ cout <<" * "; } cout << endl ; } // For printing the lower part of pyramid for (int i = n; i > 0; i--){ for (int j = i; j > 0; j--){ cout << " * "; } cout << endl ; }}// Driver program int main(){ pattern(6); return 0;}// C program to print the pyramid pattern
#include <stdio.h>
void pattern(int n)
{
for (int i = 1; i <= n; i++) {
for (int j = 1; j <= i; j++) {
printf("* ");
}
printf("\n");
}
// For printing the lower part of pyramid
for (int i = n - 1; i >= 1; i--) {
for (int j = 1; j <= i; j++) {
printf("* ");
}
printf("\n");
}
}
// Driver program
int main()
{
pattern(6);
return 0;
}
// This code is contributed by bhartik021
// Java program to print Pyramid pattern
import java.io.*;
class GFG
{
public static void pattern(int n)
{
// For printing the upper
// part of the pyramid
for (int i = 1; i < n; i++)
{
for (int j = 1; j < i+1; j++)
{
System.out.print(" * ");
}
System.out.println();
}
// For printing the lower
// part of pyramid
for (int i = n; i > 0; i--)
{
for (int j = i; j > 0; j--)
{
System.out.print(" * ");
}
System.out.println();
}
}
// Driver program
public static void main(String args[])
{
pattern(6);
}
}
// This code is contributed by NIkita Tiwari.
# Python program to print Pyramid pattern
def pattern(n):
# For printing the upper part of pyramid
for i in range (1, n+1):
for j in range (1, i+1):
print (" *",end=" ")
print()
# for printing the middle and lower part of pyramid
for i in range (n, 1, -1):
for j in range (i, 1, -1):
print (" *",end=" ")
print()
# Driver program
pattern(6)
// C# program to print Pyramid pattern
using System;
class GFG {
public static void pattern(int n)
{
// For printing the upper
// part of the pyramid
for (int i = 1; i < n; i++) {
for (int j = 1; j < i + 1; j++) {
Console.Write(" * ");
}
Console.WriteLine();
}
// For printing the lower
// part of pyramid
for (int i = n; i > 0; i--) {
for (int j = i; j > 0; j--) {
Console.Write(" * ");
}
Console.WriteLine();
}
}
// Driver program
public static void Main()
{
pattern(6);
}
}
// This code is contributed by vt_m.
<?php
// PHP implementation to print
// Pyramid pattern
function pattern($n)
{
// For printing the upper part
// of the pyramid
for ($i = 1; $i < $n; $i++)
{
for ($j = 1; $j < $i+1; $j++)
{
echo " * ";
}
echo "\n" ;
}
// For printing the lower part
// of pyramid
for ($i = $n; $i > 0; $i--)
{
for ($j = $i; $j > 0; $j--)
{
echo " * ";
}
echo "\n" ;
}
}
// Driver code
$n=6;
pattern($n);
// This code is contributed by mits
?>
<script>
// JavaScript program to print Pyramid pattern
function pattern(n)
{
// For printing the upper
// part of the pyramid
for(var i = 1; i < n; i++)
{
for(var j = 1; j < i + 1; j++)
{
document.write(" * ");
}
document.write("<br>");
}
// For printing the lower part of pyramid
for(var i = n; i > 0; i--)
{
for(var j = i; j > 0; j--)
{
document.write(" * ");
}
document.write("<br>");
}
}
// Driver code
pattern(6);
// This code is contributed by rdtank
</script>
Output :
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
Time complexity: O(n2)
Auxiliary Space: O(1)
Java Program to Print Star Pattern in Triangle Shape
