C programming pattern papers in computer science usually include questions like this:

Write a program to print a triangle using stars.
Write a program to print a square or rectangle using numbers.
Write a program to print a pyramid pattern.
Write a program to print number patterns like 1 22 333 4444.
Write a program to print reverse patterns.
Write a program using nested loops to make shapes.
Write a program to print alphabetical patterns like A AB ABC.

These types of pattern questions are common in C programming exams