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Creating Patterns
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1.Half Pyramid of *
2.Half Pyramid of Numbers
3.Half Pyramid of Alphabets
4.Inverted half pyramid of *
5.Inverted half pyramid of numbers
6.Full Pyramid of *
7.Full Pyramid of Numbers
8.Inverted full pyramid of *
9.Pascal's Triangle
10.Floyd's Triangle

Refernce: programiz.com