A technical interview assesses candidates' problem-solving skills, coding proficiency, and knowledge of algorithms and data structures. It often includes whiteboard coding, debugging exercises, and system design questions. Interviewers evaluate communication abilities, logical thinking, and mastery of relevant technologies. Preparation and practice are essential for success.
Questions d'entretien [1]
Question 1
A: They asked me to implement a function that finds the longest substring without repeating characters in a given string. This required understanding of sliding window techniques and hash maps for efficient tracking of characters.
J'ai passé un entretien chez TikTok (San Francisco, CA)
Entretien
OA - 1 arrays Medium, 1 Trie Hard. I had 45 minutes to complete that. I was able to do the medium in about 15-20 minutes but I am not that great with trie ds so I was not able to finish.
Four Round Process
Phone Interview with Human Resources
Coding Round; 1 DSA Leetcode Medium Q
Coding Round: 2 DSA Leetcode Medium Q
Manager Round: System Design Q and behavioural Q
It took about four weeks from application to offer, longer than I initially expected. The initial phone screen was straightforward, covering my resume and some basic algorithms. Then came the technical rounds, which were challenging. One question on minimum window substrings had me diving into a sliding-window approach using pointers and hashmaps. Funny enough, I recognized it mid-round as something I’d practiced on PracHub just days before. After a final system design discussion, I received the offer and happily accepted.
Questions d'entretien [1]
Question 1
Given two strings s and t, return the minimum window substring of s that contains every character of t including duplicates, or an empty string if no such window exists. Walk through the sliding-window approach using two pointers and a character-frequency hashmap, analyze the O(|s| + |t|) time complexity, and discuss how to adapt it when t contains characters not present in s or when s arrives as a stream that cannot be fully buffered.