Ch 13 · Mini-Projects & Practice · C

Topic 13 of 13 in C — Complete Tutorial (Beginner) — 5 lessons.

Simple Calculator

This project builds a calculate function that takes two numbers and an operator character, then performs the right operation using a switch. It safely handles division by zero. It shows functions, switch, and char handling.

Grade Reporter

This project uses an array of marks and a function to compute the grade, then prints a formatted report — combining arrays, loops, functions, and formatted output.

Number Guessing Game

This project processes a list of guesses in a loop using a function, conditionals, and break — the core logic of a guessing game.

Practice Exercises

Now You Try!

Try to practice by writing your own code. Reading code teaches you a little — *writing* it teaches you a lot! Open the playground beside this card, pick one of these mini-challenges, and build it from scratch:

All topics in C Beginner

1. Introduction to Programming & C
2. Your First C Program
3. Variables & Data Types
4. Input & Output
5. Operators & Expressions
6. Conditional Statements
7. Loops & Iterations
8. Functions
9. Arrays
10. Strings
11. Pointers
12. Structures
13. Mini-Projects & Practice