Functions: Centered Pyramids, Diamonds & Hourglass Shapes

Write parameterized C++ functions to construct centered geometric figures:

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  void printPyramid(int height): Prints a centered equilateral triangle where row i (from 1 to height) has height - i leading spaces followed by 2 * i - 1 stars.

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  void printDiamond(int n): Prints a symmetric diamond with n upper rows (including center) and n - 1 lower rows.

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  void printHourglass(int n): Prints an hourglass figure composed of an inverted pyramid followed by an upright pyramid.

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  Call printPyramid(4).
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  Call printDiamond(4).
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  Call printHourglass(4).