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CodingMedium
Parse S-expressions in one pass with precise errors
Implement a parser that first reads atoms, then flat lists, and then nested lists. Read characters from left to right without splitting the whole input…
Companies: Baseten
Input Validation · Parsing · Stacks
Last reported Aug 2026
Open workspace
CodingHard
Convert Sampled Call Stacks into Start and End Events
Convert a sequence of sampled call stacks into function entry and exit events. Handle recursive calls and discuss the effect of limited history.
Companies: Anthropic
Arrays & Strings · Profiling · Recursion · Stacks
Last reported Mar 2026
Open workspace