Leetcode 1166. Design File System
Implement an in-memory hierarchical file system that supports createPath(path, value) — which should succeed only if the immediate parent path exists and the path is new — and get(path) returning the stored value or -1 if absent. The challenge is efficiently enforcing parent-existence and uniqueness checks for arbitrary path strings.
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Late July, 2025
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Early April, 2025
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Optimize the size calculation function if we query the same file system for multiple entity ids
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