Code Editor for app.py

import streamlit as st

# Initialize session state for storing answers and score
if 'answers' not in st.session_state:
    st.session_state.answers = {}
    st.session_state.submitted = False
    st.session_state.score = 0

st.title("Simple Quiz")

# Quiz questions and correct answers
questions = {
    "q1": {
        "question": "What is the capital of France?",
        "options": ["London", "Berlin", "Paris", "Madrid"],
        "correct": "Paris"
    },
    "q2": {
        "question": "Which planet is known as the Red Planet?",
        "options": ["Venus", "Mars", "Jupiter", "Saturn"],
        "correct": "Mars"
    },
    "q3": {
        "question": "What is 2 + 2?",
        "options": ["3", "4", "5", "6"],
        "correct": "4"
    }
}

# Display questions
for q_id, q_data in questions.items():
    st.subheader(q_data["question"])
    st.session_state.answers[q_id] = st.radio(
        "Choose your answer:",
        q_data["options"],
        key=q_id
    )

# Submit button
if st.button("Submit Quiz"):
    st.session_state.submitted = True
    st.session_state.score = 0
    
    # Calculate score
    for q_id, q_data in questions.items():
        if st.session_state.answers[q_id] == q_data["correct"]:
            st.session_state.score += 1

# Display results if quiz is submitted
if st.session_state.submitted:
    st.markdown("---")
    st.header("Quiz Results")
    st.write(f"Your score: {st.session_state.score} out of {len(questions)}")
    
    # Show correct/incorrect answers
    for q_id, q_data in questions.items():
        st.write(f"\nQuestion: {q_data['question']}")
        st.write(f"Your answer: {st.session_state.answers[q_id]}")
        st.write(f"Correct answer: {q_data['correct']}")
        if st.session_state.answers[q_id] == q_data['correct']:
            st.success("Correct! ✅")
        else:
            st.error("Incorrect ❌")