Simplify Nested Path String

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Your question is Simplify Nested Path String. Start with the requirements on the right.

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Problem

Given a string path representing a slash-separated path, return its canonical simplified form. The path may contain repeated slashes, . segments for the current directory, and .. segments for the parent directory. The result must start with a single /, contain no trailing slash unless it is the root, and never move above root.

Constraints

1 <= len(path) <= 10^5
path contains English letters, digits, ., _, -, and /
The input path is absolute and always starts with /

Function Signature

def simplify_path(path):

Your solutionPython 3

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