BYJU'S Coding Questions - DSA Problems & Solutions

Company Overview

This page contains BYJU’S coding questions from BYJU’S OA placement papers with detailed solutions.

Coding Focus

BYJU’S OA coding section includes 2-3 problems focusing on DSA and ed-tech platform concepts. Master arrays, trees, graphs, and system design to succeed.

BYJU’S Coding Questions Overview

BYJU’S OA Coding Section:

• Problems: 2-3 coding problems
• Time: 90 minutes
• Languages: Java, Python, JavaScript

Coding Problems

Question 1: Learning Analytics

Q1: Analyze student learning data and generate insights.

Solution (Java):

public Map<String, Double> analyzeLearningData(Map<String, List<Integer>> studentScores) {
    Map<String, Double> analytics = new HashMap<>();

    for (String student : studentScores.keySet()) {
        List<Integer> scores = studentScores.get(student);
        double avg = scores.stream().mapToInt(Integer::intValue).average().orElse(0.0);
        analytics.put(student, avg);
    }

    return analytics;
}

Time Complexity: O(n * m)

Related Resources

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