Urban Company Coding Questions - DSA Problems & Solutions

Company Overview

This page contains Urban Company coding questions from Urban Company OA placement papers with detailed solutions.

Coding Focus

Urban Company OA coding section includes 2-3 problems focusing on DSA and marketplace concepts. Master arrays, trees, graphs, and system design to succeed.

Urban Company Coding Questions Overview

Urban Company OA Coding Section:

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

Coding Problems

Question 1: Rating System

Q1: Design a rating system for service providers and customers.

Solution (Java):

class RatingSystem {
    Map<String, List<Integer>> providerRatings = new HashMap<>();

    public void addRating(String providerId, int rating) {
        providerRatings.putIfAbsent(providerId, new ArrayList<>());
        providerRatings.get(providerId).add(rating);
    }

    public double getAverageRating(String providerId) {
        List<Integer> ratings = providerRatings.getOrDefault(providerId, new ArrayList<>());
        return ratings.stream().mapToInt(Integer::intValue).average().orElse(0.0);
    }
}

Time Complexity: O(1) for add, O(n) for average

Related Resources

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Urban Company Main Page

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