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Coding · System design
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Design a car rental system that allows users to search for available vehicles, make bookings, manage reservations, and handle user accounts and profiles.
Companies: Mastercard, C3 Ai, Meta, Netlight +2
Last reported Jul 2026
Design a recommendation system similar to Amazon that analyzes customer activity and browsing patterns to provide personalized top-k product recommendations.
Companies: Mastercard, Amazon, Google
Last reported Mar 2026
Design and implement a functional alarm clock system that can set, trigger, and manage multiple alarms with appropriate time handling.
Companies: Mastercard
Last reported Dec 2025
Given a current alarm time and a target alarm time in HH:MM format, calculate the minimum number of scroll/shift operations needed to change the alarm…
Companies: Mastercard
Last reported Dec 2025