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add: 220314 [cpp]

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Lam Haoyin 2022-03-14 18:08:34 +08:00
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/**
* 71. Simplify Path
* Given a string path, which is an absolute path (starting with a slash '/') to a file or directory in a Unix-style file system, convert it to the simplified canonical path.
*
* In a Unix-style file system, a period '.' refers to the current directory, a double period '..' refers to the directory up a level, and any multiple consecutive slashes (i.e. '//') are treated as a single slash '/'. For this problem, any other format of periods such as '...' are treated as file/directory names.
*
* The canonical path should have the following format:
*
* The path starts with a single slash '/'.
* Any two directories are separated by a single slash '/'.
* The path does not end with a trailing '/'.
* The path only contains the directories on the path from the root directory to the target file or directory (i.e., no period '.' or double period '..')
* Return the simplified canonical path.
*
* Refer: 220106-CN.cpp
*/