🎯 Quiz Application.

📌 Overview

This is a console-based quiz game written in C that allows users to:

Register and log in. Choose a difficulty level: Beginner (B), Intermediate (I), or Pro (P). Answer multiple-choice questions. Track their scores and save them to a leaderboard.

📂 Project Structure

main.c – The core program that runs the quiz system. questions.txt – Stores quiz questions, answers, and difficulty levels. users.txt – Stores registered user credentials. leaderboard.txt – Maintains user scores and rankings.

🛠 Features

✅ User Authentication – Register and log in before playing. ✅ Difficulty Levels – Choose from three levels: Beginner, Intermediate, or Pro. ✅ Randomized Questions – Questions are shuffled to enhance replayability. ✅ Scoring System – Tracks correct answers and saves scores to the leaderboard. ✅ Leaderboard Display – View top scores after playing.

📜 File Formats

Each line follows this format: questions.txt

Question|Option1|Option2|Option3|Option4|Correct Answer|Difficulty Example: What is 2 + 2?|1|2|3|4|D|B D – Correct answer (4th option). B – Difficulty level (Beginner, Intermediate, Pro).

users.txt Username|Password Example: john_doe|securepass123

leaderboard.txt Username|Score|Difficulty Example: alice|10|Pro

🎮 How to Play

Register or log in. Choose a difficulty level. Answer up to 15 randomly selected questions. View your final score and save it to the leaderboard. Optionally, view the leaderboard or play again.

🎯 Additional Things that can be implemented in the Future

Implementing password encryption for security. Using SQL as DataBase instead of Files Add a GUI version using a graphical library. Introduce timed questions to make the game more challenging.

                                                  THANK YOU!!