// Basic Quiz App in C
    #include 
#include 
int quiz(struct Question a[], int size) {
    int score = 0;

    for (int i = 0; i < size; i++) {
        printf("%s\n", a[i].question);

        for (int j = 0; j < 4; j++) {
            printf("%d. %s\n", j + 1, a[i].options[j]);  
        }

        int usera;
        while (1) {
            printf("Enter the correct option number: ");
            if (scanf("%d", &usera) != 1) {
                while (getchar() != '\n');  // Clear input buffer
                printf("Invalid input. Please enter a number.\n");
                continue;
            }
            if (usera >= 1 && usera <= 4) {
                break;
            } else {
                printf("Invalid input. Please enter a number within the range of options.\n");
            }
        }

        if (strcmp(a[i].options[usera - 1], a[i].answer) == 0) {//Arrays are 0-based, so we use usera - 1.
            printf("Correct!\n");
            score++;
        } else {
            printf("Incorrect. The correct answer was: %s\n", a[i].answer);
        }
            //strcmp(...) == 0:
            //strcmp is used to compare two strings. It returns 0 if they are exactly equal.
            //So this condition checks: "Did the user pick the correct option?"
        printf("\n");
    }

    printf("Quiz complete! Your score is: %d/%d\n", score, size);
    return score;
}

struct Question {
    char question[256];
    char options[4][100];
    char answer[100];
};

int main() {
    struct Question quizData[] = {
        {
            "What is the name of Eren Yeager Titan name?",
            { "Colossal Titan", "Armored Titan", "Female Titan", "Attack Titan" },
            "Attack Titan"
        },
        {
            "What type of creature does Kaneki become in Tokyo Ghoul?",
            { "Vampire", "Ghoul", "Demon", "Werewolf" },
            "Ghoul"
        }
    };

    int size = sizeof(quizData) / sizeof(quizData[0]);
    quiz(quizData, size);
    return 0;
}

  

// Basic Quiz App in C++
    #include 
#include   // For strcmp

struct Question {
    char question[256];
    char options[4][100];
    char answer[100];
};

int quiz(Question a[], int size) {
    int score = 0;

    for (int i = 0; i < size; i++) {
        std::cout << "Q" << i + 1 << ": " << a[i].question << std::endl;

        for (int j = 0; j < 4; j++) {
            std::cout << j + 1 << ". " << a[i].options[j] << "\n";
        }

        int choice;
        bool valid = false;

        // Input validation loop
        while (!valid) {
            std::cout << "Enter the correct option number (1-4): ";
            std::cin >> choice;

            if (std::cin.fail() || choice < 1 || choice > 4) {
                std::cin.clear(); // Clear error state
                std::cin.ignore(10000, '\n'); // Flush invalid input
                std::cout << "Invalid input. Please enter a number between 1 and 4.\n";
            } else {
                valid = true;
            }
        }


        if (std::strcmp(a[i].options[choice - 1], a[i].answer) == 0) {//Arrays are 0-based, so we use usera - 1.
            std::cout << "Correct!\n\n";
            score++;
        } else {
            std::cout << "Wrong. The correct answer was: " << a[i].answer << "\n\n";
        }
    }

    return score;
}
int main() {
    struct Question quizData[] = {
        {
            "What is the name of Eren Yeager Titan name?",
            { "Colossal Titan", "Armored Titan", "Female Titan", "Attack Titan" },
            "Attack Titan"
        },
        {
            "What type of creature does Kaneki become in Tokyo Ghoul?",
            { "Vampire", "Ghoul", "Demon", "Werewolf" },
            "Ghoul"
        }
    };

    int size = sizeof(quizData) / sizeof(quizData[0]);
    quiz(quizData, size);
    return 0;
}

  

// Basic Quiz App in Java
    import java.util.List;
import java.util.ArrayList;
import java.util.Scanner;

class Question {
    String question;
    List options;
    String answer;

    Question(String question, List options, String answer) {
        this.question = question;
        this.options = options;
        this.answer = answer;
    }
}

class Quiz {
    private List questions;
    private Scanner scanner;

    Quiz(List questions) {
        this.questions = questions;
        this.scanner = new Scanner(System.in);
    }

    public void run() {
        int score = 0;

        for (Question q : questions) {
            System.out.println(q.question);

            for (int j = 0; j < q.options.size(); j++) {
                System.out.println((j + 1) + ". " + q.options.get(j));
            }

            int user = 0;
            while (true) {
                System.out.print("Enter the number of your answer: ");
                try {
                    user = Integer.parseInt(scanner.nextLine());
                    if (user >= 1 && user <= q.options.size()) {
                        break;
                    } else {
                        System.out.println("Invalid input. Please enter a number within range.");
                    }
                } catch (NumberFormatException e) {
                    System.out.println("Invalid input. Please enter a number.");
                }
            }

            if (q.options.get(user - 1).equals(q.answer)) {
                System.out.println("Correct!\n");
                score++;
            } else {
                System.out.println("Incorrect. The correct answer was: " + q.answer + "\n");
            }
        }

        System.out.println("Quiz complete! Your score is: " + score + "/" + questions.size());
        scanner.close();
    }
}

public class Main {
    public static void main(String[] args) {
        List questions = new ArrayList<>();

        List options1 = List.of("Colossal Titan", "Armored Titan", "Female Titan", "Attack Titan");
        questions.add(new Question("What is the name of Eren Yeager's Titan?", options1, "Attack Titan"));

        List options2 = List.of("Vampire", "Ghoul", "Demon", "Werewolf");
        questions.add(new Question("What type of creature does Kaneki become?", options2, "Ghoul"));

        Quiz quiz = new Quiz(questions);
        quiz.run();
    }
}

  

# Python Anime Quiz Code
    def quiz(a):
    s=0
    for i in a:
        print(i['question'])
        for j,option in enumerate(i['options']):
            print(f"{j+1}.{option}")

        while True:
            try:
                uans=int(input("enter the correct options : "))
                if 1 <= uans <= len(i['options']):
                    break
                else:
                    print("Invalid input. Please enter a number within the range of options.")
            except ValueError:
                print("Invalid input. Please enter a number.")
        if i['options'][uans-1]==i['answer']:
            print("correct ")
            s+=1
        else:
            print("incorrect")
    print(f"Quiz complete! Your score is: {s}/{len(a)}")
a=[
    {
        'question': 'What is the name of Eren Yeager Titan name?',
         "options": ["Colossal Titan", "Armored Titan", "Female Titan", "Attack Titan"],
        "answer": "Attack Titan"
    },
    {
    "question": "What type of creature does Kaneki become in Tokyo Ghoul?",
    "options": ["Vampire", "Ghoul", "Demon", "Werewolf"],
    "answer": "Ghoul"
}
]
quiz(a)
  

// Basic Quiz App in JavaScript
    const quiz = [
  {
    question: "1. What is the capital of India?",
    options: ["Delhi", "Mumbai", "Chennai", "Kolkata"],
    answer: 0
  },
  {
    question: "2. What is 2 + 2?",
    options: ["3", "4", "2", "5"],
    answer: 1
  },
  {
    question: "3. Which planet is known as the Red Planet?",
    options: ["Earth", "Venus", "Mars", "Jupiter"],
    answer: 2
  },
  {
    question: "4. Who wrote 'Harry Potter'?",
    options: ["J.R.R. Tolkien", "J.K. Rowling", "George R.R. Martin", "Rick Riordan"],
    answer: 1
  },
  {
    question: "5. What is the largest mammal?",
    options: ["Elephant", "Giraffe", "Blue Whale", "Hippo"],
    answer: 2
  },
  {
    question: "6. What is the boiling point of water?",
    options: ["90°C", "100°C", "110°C", "120°C"],
    answer: 1
  },
  {
    question: "7. HTML stands for?",
    options: ["HighText Markup Language", "HyperText Markup Language", "HyperTabular Markup Language", "None"],
    answer: 1
  },
  {
    question: "8. Which one is a JavaScript framework?",
    options: ["Flask", "Django", "React", "Laravel"],
    answer: 2
  },
  {
    question: "9. What does CSS stand for?",
    options: ["Creative Style System", "Cascading Style Sheets", "Computer Style Structure", "Colorful Style Syntax"],
    answer: 1
  },
  {
    question: "10. Which company created Java?",
    options: ["Oracle", "Sun Microsystems", "Microsoft", "IBM"],
    answer: 1
  }
];

let current = 0;
let score = 0;

function loadQuestion() {
  if (current >= quiz.length) {
    document.getElementById("questionText").textContent = "Quiz Finished!";
    document.getElementById("options").innerHTML = "";
    document.getElementById("scoreBox").textContent = `🎉 Your Score: ${score} / ${quiz.length}`;
    return;
  }

  const q = quiz[current];
  document.getElementById("questionText").textContent = q.question;
  const optionsDiv = document.getElementById("options");
  optionsDiv.innerHTML = "";

  q.options.forEach((opt, i) => {
    const btn = document.createElement("button");
    btn.className = "btn btn-outline-primary option-btn";
    btn.textContent = opt;
    btn.onclick = () => {
      if (i === q.answer) score++;
      nextQuestion();
    };
    optionsDiv.appendChild(btn);
  });
}

function nextQuestion() {
  current++;
  loadQuestion();
}

function toggleCode() {
  const section = document.getElementById("codeSection");
  section.style.display = section.style.display === "none" ? "block" : "none";
}

function showCode(lang) {
  document.querySelectorAll("pre").forEach(pre => pre.style.display = "none");
  document.getElementById(lang).style.display = "block";
}

window.onload = loadQuestion;