Pyramid Pattern

Given an integer N, print a centered symmetric pyramid of stars with N rows. Each row i has leading spaces to center it, and contains (2*i - 1) stars.

Input Format

A single integer N.

Output Format

Print N centered rows of stars.

Constraints:1 <= N <= 15

Concepts Required:

Leading spaces calculationOdd number sequence 2*i - 1Symmetric formatting

Expected Pattern PreviewASCII Monospace

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

Notice how character spacing and row counts scale systematically based on the input N.

Concrete Examples

Example 1

Input:

Output:

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

Explanation: Row 1 has 4 spaces and 1 star. Row 5 has 0 spaces and 9 stars.

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