Add First N Numbers in C Using a Function
Write a C function that returns the sum of the first N natural numbers, then call it from main.
Evaluate f(x) Using Recursion in C
A simple recursive function example in C, with base case and recursive step explained for GTU-style labs.
C Program to Swap Values Using Pointers
Swap two integers in C by passing their addresses into a helper function.
C Program to Check Positive, Negative, or Zero
GTU-style C exercise: classify an integer as positive, negative, or zero using simple if-else logic.