Problem Definition

Define the Data Structures:

• Create a structure to represent a quiz question, including the question text, multiple-choice options (as an array), and the index of the correct answer.
• Define a structure for storing user information, including name and score.

Load Questions from a File or Database:

• Create a file that stores the quiz questions and their answers.
• Write a function to read the questions from the file and store them in an array of question structures.

Present Questions to the User:

• Write a loop that iterates through the array of questions.
• Display each question to the user along with the multiple-choice options.
• Prompt the user for their answer and validate it.

Check Answers and Calculate Score:

• Compare the user's answer with the correct answer index for each question.
• Increment the score if the user's answer is correct.

Save Points and Update Leaderboard:

• Load the current leaderboard from a file into an array of user structures.
• Prompt the user to enter their name.
• Update the user's score in the array of user structures.
• Sort the array based on scores in descending order to create a leaderboard.
• Write the updated leaderboard back to the file.

Display the Final Score and Leaderboard:

• Display the user's final score.
• Display the leaderboard to the user.
• By saving the points and leaderboard in a file, you can persist the data across multiple quiz sessions. You can use a simple text file format for storing the data.

Remember to handle file I/O operations properly, including error handling, opening and closing files, and validating file access permissions.

Good luck with your quiz application!