When dealing with multiple-choice questions, it’s crucial to calculate and display correct answers accurately, especially when the data is presented in a PDF format. In this article, we will explore the problem of displaying correct answers for multiple-choice questions and how to implement a solution.
Original Problem Code
Here's a basic example code snippet that represents the challenge of calculating and displaying correct answers from multiple-choice questions:
def calculate_scores(answers, key):
score = 0
for i in range(len(answers)):
if answers[i] == key[i]:
score += 1
return score
questions = ["Q1: A or B?", "Q2: C or D?", "Q3: E or F?"]
answers = ['A', 'C', 'E']
key = ['A', 'D', 'F']
score = calculate_scores(answers, key)
print("Your score is: " + str(score))
Understanding the Problem
The provided code calculates scores based on the given answers and a key, which indicates the correct answers. However, the original code is limited in terms of presentation and does not demonstrate how to show these results in a PDF format.
Improved Code Example
To enhance the solution, we can expand the functionality to include generating a PDF report with the results:
from fpdf import FPDF
def calculate_scores(answers, key):
score = 0
for i in range(len(answers)):
if answers[i] == key[i]:
score += 1
return score
def generate_pdf_report(questions, answers, key, score):
pdf = FPDF()
pdf.add_page()
pdf.set_font("Arial", size=12)
pdf.cell(200, 10, txt="Multiple-Choice Questions Report", ln=True, align='C')
pdf.cell(200, 10, txt=f"Your score is: {score}/{len(questions)}", ln=True, align='C')
pdf.cell(200, 10, ln=True) # blank line
for i in range(len(questions)):
correct_answer = "Correct" if answers[i] == key[i] else "Incorrect"
pdf.cell(200, 10, txt=f"{questions[i]} - Your answer: {answers[i]} - {correct_answer}", ln=True)
pdf.output("multiple_choice_report.pdf")
questions = ["Q1: A or B?", "Q2: C or D?", "Q3: E or F?"]
answers = ['A', 'C', 'E']
key = ['A', 'D', 'F']
score = calculate_scores(answers, key)
generate_pdf_report(questions, answers, key, score)
Additional Explanation and Analysis
This improved version not only calculates the score but also generates a well-formatted PDF report detailing each question, the user's answer, and whether that answer was correct. The report can be very useful for educational purposes, giving students tangible feedback on their performance.
Libraries and Tools
In this example, we utilized the fpdf library, a popular tool for generating PDF documents in Python. This library is lightweight and easy to use, making it perfect for simple reporting tasks. Here are a few more resources you may find helpful:
Conclusion
Calculating and showing correct answers for multiple-choice questions can be efficiently managed through proper coding practices. By using the right libraries and structures, we can create valuable reports that enhance the user experience. Whether for educational settings or quizzes, the method demonstrated above provides a clear framework for your needs.
Make sure to adjust the questions, answers, and keys as per your requirements, and you will have a solid system for managing multiple-choice assessments in PDF format!
