MHCET Marks calculator

// Select all rows in the tbody of the table with id #tblObjection, skipping the first row
const rows = document.querySelectorAll('#tblObjection > tbody > tr:nth-child(n+2)');

// Initialize counters for Physics, Chemistry, and Mathematics
let correctAnswersPhysics = 0;
let wrongAnswersPhysics = 0;
let correctAnswersChemistry = 0;
let wrongAnswersChemistry = 0;
let correctAnswersMathematics = 0;
let wrongAnswersMathematics = 0;

// Iterate through each row
rows.forEach((row, index) => {
    // Get the correct option and candidate response elements using the provided selectors
    const correctOptionElement = row.querySelector('td:nth-child(3) > table.table.table-responsive.table-bordered.center > tbody > tr > td:nth-child(1) > span');
    const candidateResponseElement = row.querySelector('td:nth-child(3) > table.table.table-responsive.table-bordered.center > tbody > tr > td:nth-child(2) > span');

    // Check if both elements exist
    if (correctOptionElement && candidateResponseElement) {
        const correctOption = correctOptionElement.textContent.trim();
        const candidateResponse = candidateResponseElement.textContent.trim();

        // Determine the category based on the question index and compare answers
        if (index < 50) {
            // Physics
            if (correctOption === candidateResponse) {
                correctAnswersPhysics++;
            } else {
                wrongAnswersPhysics++;
            }
        } else if (index < 100) {
            // Chemistry
            if (correctOption === candidateResponse) {
                correctAnswersChemistry++;
            } else {
                wrongAnswersChemistry++;
            }
        } else {
            // Mathematics
            if (correctOption === candidateResponse) {
                correctAnswersMathematics++;
            } else {
                wrongAnswersMathematics++;
            }
        }
    }
});

// Calculate total score
const totalScore = correctAnswersPhysics + correctAnswersChemistry + (correctAnswersMathematics * 2);

// Output the results
console.log(`Physics - Correct Answers: ${correctAnswersPhysics}, Wrong Answers: ${wrongAnswersPhysics}`);
console.log(`Chemistry - Correct Answers: ${correctAnswersChemistry}, Wrong Answers: ${wrongAnswersChemistry}`);
console.log(`Mathematics - Correct Answers: ${correctAnswersMathematics}, Wrong Answers: ${wrongAnswersMathematics}`);
console.log(`Total Score: ${totalScore} out of 200`);