C PROGRAMMING CERTIFICATION -- MODULE 3: FUNCTIONS & RECURSION
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(Placeholder lecture notes.)

1. Function declarations vs definitions, function prototypes
2. Pass-by-value semantics (and how pointers simulate pass-by-reference)
3. Storage classes: auto, static, extern, register
4. Recursion: base case, recursive case, call-stack visualization
5. When to prefer iteration over recursion (stack depth, performance)

Practice problems for this module are listed on the module page.