codehive/index.html at main · knitlabs/codehive · GitHub

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<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>DSA Interview Questions</title>
    <style>
      body {
        font-family: "Poppins", sans-serif;
        max-width: 1200px;
        margin: 0 auto;
        padding: 20px;
        line-height: 1.8;
        color: #333;
        background: linear-gradient(120deg, #000, #fff);
        color: #eaeaea;
      }

      h1 {
        text-align: center;
        font-family: "Poppins", sans-serif;
        color: #fff; /* Solid white color for the heading */
        font-size: 2.5rem;
        margin-bottom: 30px;
        font-weight: 600;
      }

      #debug-info {
        background: rgba(255, 255, 255, 0.1);
        border: 1px solid rgba(255, 255, 255, 0.3);
        padding: 15px;
        margin-bottom: 20px;
        white-space: pre-wrap;
        word-break: break-word;
        border-radius: 8px;
        color: #d3d3d3;
        box-shadow: 0 2px 5px rgba(0, 0, 0, 0.3);
      }

      #search-container {
        display: flex;
        flex-wrap: wrap;
        gap: 15px;
        margin-bottom: 25px;
        justify-content: space-between;
      }

      #search-input,
      #company-filter,
      #difficulty-filter {
        padding: 12px;
        flex: 1;
        border: 1px solid rgba(255, 255, 255, 0.3);
        border-radius: 8px;
        font-size: 1rem;
        background: rgba(0, 0, 0, 0.6);
        color: #eaeaea;
        box-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
        transition: all 0.3s ease-in-out;
      }

      #search-input:focus,
      #company-filter:focus,
      #difficulty-filter:focus {
        border-color: #fff;
        box-shadow: 0 4px 8px rgba(255, 255, 255, 0.3);
        outline: none;
      }

      #questions-table {
        width: 100%;
        border-collapse: collapse;
        margin-top: 20px;
        background: linear-gradient(120deg, #000000, #444444);
        border-radius: 10px;
        overflow: hidden;
        box-shadow: 0 4px 12px rgba(0, 0, 0, 0.5);
        animation: fadeIn 0.6s ease-in-out;
        color: #eaeaea;
      }

      @keyframes fadeIn {
        from {
          opacity: 0;
          transform: translateY(20px);
        }
        to {
          opacity: 1;
          transform: translateY(0);
        }
      }

      #questions-table th,
      #questions-table td {
        border: 1px solid rgba(255, 255, 255, 0.2);
        padding: 15px;
        text-align: left;
        font-size: 1rem;
      }

      #questions-table th {
        background: linear-gradient(120deg, #1f1f1f, #555);
        color: #fff;
        text-transform: uppercase;
        font-weight: bold;
        letter-spacing: 0.5px;
      }

      #questions-table tbody tr:nth-child(even) {
        background-color: rgba(255, 255, 255, 0.05);
      }

      #questions-table tbody tr:hover {
        background-color: rgba(255, 255, 255, 0.1);
        cursor: pointer;
        transition: background-color 0.3s ease-in-out;
      }

      #questions-table td a {
        text-decoration: none;
        color: #fff;
        font-weight: 500;
      }

      #questions-table td a:hover {
        color: #f1f1f1;
        text-decoration: underline;
      }

      #error-message {
        color: #ff5252;
        background: rgba(0, 0, 0, 0.7);
        padding: 15px;
        border: 1px solid rgba(255, 255, 255, 0.3);
        margin-bottom: 20px;
        border-radius: 8px;
        box-shadow: 0 2px 5px rgba(0, 0, 0, 0.3);
        font-size: 1rem;
      }

      /* Add subtle animations */
      input,
      select,
      table,
      th,
      td {
        transition: all 0.3s ease-in-out;
      }

      @media (max-width: 768px) {
        #search-container {
          flex-direction: column;
        }

        #search-input,
        #company-filter,
        #difficulty-filter {
          font-size: 0.9rem;
          padding: 10px;
        }

        #questions-table th,
        #questions-table td {
          font-size: 0.9rem;
          padding: 10px;
        }
      }

      @media (max-width: 480px) {
        body {
          padding: 10px;
        }

        h1 {
          font-size: 1.8rem;
        }

        #search-input,
        #company-filter,
        #difficulty-filter {
          font-size: 0.8rem;
          padding: 8px;
        }
      }
    </style>
  </head>
  <body>
    <h1>Data Structures and Algorithms: Interview Guide</h1>

    <div id="search-container">
      <input type="text" id="search-input" placeholder="Search questions..." />
      <select id="company-filter">
        <option value="">All Companies</option>
      </select>
      <select id="difficulty-filter">
        <option value="">All Difficulties</option>
        <option value="Easy">Easy</option>
        <option value="Medium">Medium</option>
        <option value="Hard">Hard</option>
      </select>
    </div>

    <table id="questions-table">
      <thead>
        <tr>
          <th>LeetCode ID</th>
          <th>Title</th>
          <th>Acceptance</th>
          <th>Difficulty</th>
          <th>Frequency</th>
        </tr>
      </thead>
      <tbody id="questions-body">
        <!-- Questions will be dynamically populated here -->
      </tbody>
    </table>

    <script>
      // Global variables
      let questionsData = [];

      // Error display function
      function displayError(message) {
        const errorDiv = document.getElementById("error-message");
        const debugDiv = document.getElementById("debug-info");

        errorDiv.textContent = message;
        debugDiv.textContent = message;
        console.error(message);
      }

      // Robust CSV parsing function
      function parseCSV(csvText) {
        // Remove UTF-8 BOM
        csvText = csvText.replace(/^\uFEFF/, "");

        // Split lines, handling different line endings
        const lines = csvText.trim().split(/\r\n|\n|\r/);

        if (lines.length <= 1) {
          displayError("No data found in the CSV");
          return [];
        }

        // Extract headers
        const headers = lines[0].split(",").map((header) => header.trim());

        // Parse data rows
        const data = [];
        for (let i = 1; i < lines.length; i++) {
          const line = lines[i];

          // Skip empty lines
          if (!line.trim()) continue;

          try {
            const values = parseCSVLine(line);

            if (values.length >= headers.length) {
              const rowData = {};
              headers.forEach((header, index) => {
                rowData[header] = (values[index] || "").trim();
              });
              data.push(rowData);
            } else {
              console.warn(
                `Skipping line ${i + 1} due to incorrect number of fields`
              );
            }
          } catch (error) {
            console.error(`Error parsing line ${i + 1}:`, error);
          }
        }

        return data;
      }

      // Advanced CSV line parsing
      function parseCSVLine(line) {
        const result = [];
        let current = "";
        let inQuotes = false;

        for (let i = 0; i < line.length; i++) {
          const char = line[i];

          if (char === '"' && line[i + 1] === '"') {
            current += '"';
            i++;
          } else if (char === '"') {
            inQuotes = !inQuotes;
          } else if (char === "," && !inQuotes) {
            result.push(current);
            current = "";
          } else {
            current += char;
          }
        }

        result.push(current);
        return result.map((field) => field.replace(/^"|"$/g, "").trim());
      }

      // Populate companies dropdown
      function populateCompaniesDropdown(data) {
        const companyFilter = document.getElementById("company-filter");
        const allCompanies = new Set();

        data.forEach((question) => {
          const companies = (question["Company"] || "").split(",");
          companies.forEach((company) => {
            const trimmedCompany = company.trim();
            if (trimmedCompany) {
              allCompanies.add(trimmedCompany);
            }
          });
        });

        // Sort companies alphabetically
        const sortedCompanies = Array.from(allCompanies).sort();
        sortedCompanies.forEach((company) => {
          const option = document.createElement("option");
          option.value = company;
          option.textContent = company;
          companyFilter.appendChild(option);
        });
      }

      // Render questions in the table
      function renderQuestions(data) {
        const questionsBody = document.getElementById("questions-body");
        questionsBody.innerHTML = ""; // Clear existing rows

        data.forEach((question) => {
          const row = document.createElement("tr");

          // Create LeetCode ID cell
          const idCell = document.createElement("td");
          idCell.textContent = question["ID"] || "";

          // Create Title cell with LeetCode link
          const titleCell = document.createElement("td");
          const titleLink = document.createElement("a");
          titleLink.href = question["Leetcode Question Link"] || "#";
          titleLink.textContent = question["Title"] || "";
          titleLink.target = "_blank";
          titleCell.appendChild(titleLink);

          // Create other cells
          const cellContents = [
            question["Acceptance"] || "",
            question["Difficulty"] || "",
            question["Frequency"] || "",
          ];

          row.appendChild(idCell);
          row.appendChild(titleCell);
          cellContents.forEach((cellText) => {
            const cell = document.createElement("td");
            cell.textContent = cellText;
            row.appendChild(cell);
          });

          questionsBody.appendChild(row);
        });
      }

      // Filter questions
      function filterQuestions() {
        const searchInput = document
          .getElementById("search-input")
          .value.toLowerCase();
        const companyFilter = document.getElementById("company-filter").value;
        const difficultyFilter =
          document.getElementById("difficulty-filter").value;

        const filteredQuestions = questionsData.filter((question) => {
          const matchesSearch =
            searchInput === "" ||
            (question["Title"] || "").toLowerCase().includes(searchInput) ||
            (question["Company"] || "").toLowerCase().includes(searchInput);

          const matchesCompany =
            companyFilter === "" ||
            (question["Company"] || "")
              .split(",")
              .map((c) => c.trim())
              .includes(companyFilter);

          const matchesDifficulty =
            difficultyFilter === "" ||
            question["Difficulty"] === difficultyFilter;

          return matchesSearch && matchesCompany && matchesDifficulty;
        });

        renderQuestions(filteredQuestions);
      }

      // Load and process data
      async function loadData() {
        try {
          // REPLACE THIS WITH YOUR ACTUAL CSV CONTENT
          const response = await fetch("combined_output.csv");
          const csvText = await response.text();

          // Parse CSV
          questionsData = parseCSV(csvText);

          if (questionsData.length === 0) {
            displayError("No questions found in the data");
            return;
          }

          // Populate UI
          populateCompaniesDropdown(questionsData);
          renderQuestions(questionsData);

          // Add event listeners for filtering
          document
            .getElementById("search-input")
            .addEventListener("input", filterQuestions);
          document
            .getElementById("company-filter")
            .addEventListener("change", filterQuestions);
          document
            .getElementById("difficulty-filter")
            .addEventListener("change", filterQuestions);
        } catch (error) {
          displayError("Error processing CSV data: " + error.message);
        }
      }

      // Load data when the page loads
      document.addEventListener("DOMContentLoaded", loadData);
    </script>
  </body>
</html>