snapchat | Mobile | Interview Experience
Interview Date: Not specified
Result: Not specified
Difficulty: Not specified
Interview Process
The onsite interview consisted of multiple rounds: a coding round, a system design round, and a behavioral round.
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Coding Round: I was given two coding problems to solve.
- Problem 1: Implement an algorithm to find the longest substring without repeating characters.
- Problem 2: Given two strings, write a function to determine if one string is a permutation of the other.
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System Design Round: The interviewer asked me to design a scalable notification system, which included discussing database schemas, caching strategies, and how to handle failover mechanisms.
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Behavioral Round: Questions revolved around teamwork, conflict resolution, and past project experiences.
Technical Questions
- Longest Substring Without Repeating Characters (Sliding Window)
- Valid Anagram (String, Hash Table)
Tips & Insights
Focus on clear communication during the system design round and be prepared to discuss your thought process in detail.