Given the value of n, print the pattern.
Examples :
Input : 5 Output : ***** **** *** ** * ** *** **** ***** Input : 7 Output : ******* ****** ***** **** *** ** * ** *** **** ***** ****** *******
Below is the implementation to print the above pattern :
C++
// C++ Implementation to print the pattern #include <bits/stdc++.h> using namespace std;
// arrow function int arrow( int n)
{ // Prints the upper part of the arrow
for ( int i = 1; i <= n; i++)
{
// for the spacing to form
// the point of the arrow
for ( int j = i; j < n; j++)
{
printf ( " " );
}
// for printing the star(*)
for ( int j = i; j <= n; j++)
{
cout << "*" ;
}
cout << endl;
}
// Prints lower part of the arrow
for ( int i = 2; i <= n; i++)
{
// for the spacing to form
// the point of the arrow
for ( int j = 1; j < i; j++)
{
printf ( " " );
}
// for printing the star(*)
for ( int j = 1; j <= i; j++)
{
cout << "*" ;
}
cout << endl;
}
} // driver code int main()
{ // get the value from user
int n = 5;
// function calling
arrow(n);
return 0;
} |
Java
// Java Implementation to // print the above pattern import java.io.*;
class GFG {
// arrow function static void arrow( int n)
{ // Prints the upper part of the arrow
for ( int i = 1 ; i <= n; i++)
{
// for the spacing to form
// the point of the arrow
for ( int j = i; j < n; j++)
{
System.out.print( " " );
}
// for printing the star(*)
for ( int j = i; j <= n; j++)
{
System.out.print( "*" );
}
System.out.println();
}
// Prints lower part of the arrow
for ( int i = 2 ; i <= n; i++)
{
// for the spacing to form
// the point of the arrow
for ( int j = 1 ; j < i; j++)
{
System.out.print( " " );
}
// for printing the star(*)
for ( int j = 1 ; j <= i; j++)
{
System.out.print( "*" );
}
System.out.print( '\n' );
}
} // driver code public static void main(String[] Argv) {
// get the value from user
int n = 5 ;
// function calling
arrow(n);
} } // this code is contributed by 'vt_m' |
Python3
# Python Implementation to # print the pattern # arrow function def arrow(n):
# Prints the upper part of the arrow
for i in range ( 1 , n + 1 ):
# for the spacing to form
# the point of the arrow
for j in range (i, n):
print ( " " , end = "")
# for printing the star(*)
for j in range (i, n + 1 ):
print ( "*" , end = "")
print ()
# Prints lower part of the arrow
for i in range ( 2 , n + 1 ):
# for the spacing to form
# the point of the arrow
for j in range ( 1 , i):
print ( " " , end = "")
# for printing the star(*)
for j in range ( 1 , i + 1 ):
print ( "*" , end = "")
print ()
# driver code # get the value from the user n = 5
# function calling arrow(n) # This code is contributed # by Anant Agarwal. |
C#
// C# Implementation to // print the above pattern using System;
class GFG {
// arrow function static void arrow( int n)
{ // Prints the upper part of the arrow
for ( int i = 1; i <= n; i++)
{
// for the spacing to form
// the point of the arrow
for ( int j = i; j < n; j++)
{
Console.Write( " " );
}
// for printing the star(*)
for ( int j = i; j <= n; j++)
{
Console.Write( "*" );
}
Console.WriteLine();
}
// Prints lower part of the arrow
for ( int i = 2; i <= n; i++)
{
// for the spacing to form
// the point of the arrow
for ( int j = 1; j < i; j++)
{
Console.Write( " " );
}
// for printing the star(*)
for ( int j = 1; j <= i; j++)
{
Console.Write( "*" );
}
Console.WriteLine();
}
} // driver code public static void Main() {
// get the value from user
int n = 5;
// function calling
arrow(n);
} } // this code is contributed by 'vt_m' |
PHP
<?php // PHP Implementation to print // the pattern function arrow( $n )
{ // Prints the upper part of
// the arrow
for ( $i = 1; $i <= $n ; $i ++)
{
// for the spacing to form
// the point of the arrow
for ( $j = $i ; $j < $n ; $j ++)
{
echo " " ;
}
// for printing the star(*)
for ( $j = $i ; $j <= $n ; $j ++)
{
echo "*" ;
}
echo "\n" ;
}
// Prints lower part of the arrow
for ( $i = 2; $i <= $n ; $i ++)
{
// for the spacing to form
// the point of the arrow
for ( $j = 1; $j < $i ; $j ++)
{
echo " " ;
}
// for printing the star(*)
for ( $j = 1; $j <= $i ; $j ++)
{
echo "*" ;
}
echo "\n" ;
}
} // Driver code $n = 5;
arrow( $n );
// This code is contributed by mits ?> |
Javascript
<script> // JavaScript Implementation
// to print the pattern
// arrow function
function arrow(n)
{
// Prints the upper part of the arrow
for ( var i = 1; i <= n; i++)
{
// for the spacing to form
// the point of the arrow
for ( var j = i; j < n; j++)
{
document.write( " " );
}
// for printing the star(*)
for ( var j = i; j <= n; j++)
{
document.write( "*" );
}
document.write( "<br>" );
}
// Prints lower part of the arrow
for ( var i = 2; i <= n; i++)
{
// for the spacing to form
// the point of the arrow
for ( var j = 1; j < i; j++) {
document.write( " " );
}
// for printing the star(*)
for ( var j = 1; j <= i; j++)
{
document.write( "*" );
}
document.write( "<br>" );
}
}
// driver code
// get the value from user
var n = 5;
// function calling
arrow(n);
</script> |
Output :
***** **** *** ** * ** *** **** *****
Time Complexity : O(n2) ,where n is the given input number.
Space Complexity : O(1) ,as we are not using any extra space.