ByteDance / TikTok Interview Question Bank
ByteDance / TikTok runs a strict one-round-at-a-time funnel with sharp org-by-org variance in bar, language, and round mix. Coding rounds skew toward classic LeetCode-medium with one self-built test case; MLE and SRE loops front-load 30+ minutes of oral 八股 before any code is written. Interviewer professionalism varies — strong candidates drive the round structurally rather than waiting to be assessed.
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Count of Smaller Numbers After SelfLRU CacheMinimum Meeting RoomsLongest Substring Without Repeating CharactersMedian of Two Sorted ArraysSpiral Matrix Traversal with O(1) Extra SpaceDetermine Whether a Tic-Tac-Toe Game Is OverImplement a Shared Pointer LibraryRemove a Length-k Subarray to Balance Alternating Index SumsBinary Tree Paths With Target SumIterative Digit String Group SummationCount Cyclic Rotation PairsConvert Identifier Naming in DocstringsFind if a Path Exists in an Undirected GraphTime-Based Key-Value StoreReverse a Linked ListEnumerate All Simple Paths and Directed CyclesDesign HashMapLRU CacheCombination Sum II with Negative NumbersValid ParenthesesNon-overlapping IntervalsAlien DictionaryWeighted Round-Robin Seller Task SchedulerCreate Binary Tree From DescriptionsRestore IP AddressesEvaluate an Integer Arithmetic ExpressionMerge Overlapping IntervalsAlien DictionaryIntersection of Two Interval Lists