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Grokking the Coding Interview Patterns in C++

Simplify Path

Explore how to simplify Unix-style file system paths by applying stack data structure concepts. Understand how to handle special directory commands and slashes to produce a canonical path, enhancing problem-solving skills for coding interviews.

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Statement

Given an absolute path for a Unix-style file system (always beginning with '/'), transform it into its simplified canonical form.

The Unix-style file system follows these rules:

  • A single period '.' represents the current directory.

  • A double period '..' represents the parent directory.

  • Multiple consecutive slashes (e.g., '//' or '///') are treated as a single slash '/'.

  • Any sequence of ...