Write a C++ program to print a mirrored right triangle star pattern below using a single line of code under a circle.

Examples:

Input : 5
Output :
    *
   **
  ***
 ****
*****

Input : 6
Output :
     *
    **
   ***
  ****
 *****
******

setw(n) Creates n columns and fills these n columns from right. We fill i of them with a given character, here we create a string with i asterisks using string constructor.

setfill() wont to set fill character during a stream. Here we use it to fill remaining n-i-1 places with space (or ‘ ‘) in n columns.

// CPP program to print a pattern using only
// one loop.  is header file for stfill()
// and setw()
#include
#include
using namespace std;

void generatePattern(int n)
{
	// Iterate for n lines
	for (int i=1 ; i<=n ; i++)
		cout << setfill(' ') << setw(n)
			<< string(i, '*') << endl;

	// Remove multi-line commenting characters below
	// to get PATTERN WITH CHARACTERS IN LEFT AND
	// SPACE IN RIGHT
	/* for (int i=1 ; i<=n ; i++)
		cout << left << setfill(' ')
			<< setw(n) << string(i,'*') << endl; */
}

// Driver code
int main()
{
	int n = 6;
	generatePattern(n);
	return 0;
}

Output:

     *
    **
   ***
  ****
 *****
******