Practice Remove Sub-Folders from the Filesystem
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Remove Sub-Folders from the Filesystem
Given a list of folders folder, return the folders after removing all sub-folders in those folders. You may return the answer in any order. If a folder[i] is located within another folder[j], it is called a sub-folder of it. A sub-folder of folder[j] must start with folder[j], followed by a "/". For example, "/a/b" is a sub-folder of "/a", but "/b" is not a sub-folder of "/a/b/c". The format of a path is one or more concatenated strings of the form: '/' followed by one or more lowercase English letters.
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Understanding the Remove Sub-Folders from the Filesystem Problem
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Problem Statement
Given a list of folders folder, return the folders after removing all sub-folders in those folders. You may return the answer in any order. If a folder[i] is located within another folder[j], it is called a sub-folder of it. A sub-folder of folder[j] must start with folder[j], followed by a "/". For example, "/a/b" is a sub-folder of "/a", but "/b" is not a sub-folder of "/a/b/c". The format of a path is one or more concatenated strings of the form: '/' followed by one or more lowercase English letters.
Source: Remove Sub-Folders from the Filesystem on LeetCode. Use the original task for its coding environment and submissions.
Remove Sub-Folders from the Filesystem
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Examples
# Example 1
folder = ["/a","/a/b","/c/d","/c/d/e","/c/f"]
["/a","/c/d","/c/f"]
# Example 2
folder = ["/a","/a/b/c","/a/b/d"]
["/a"]
# Example 3
folder = ["/a/b/c","/a/b/ca","/a/b/d"]
["/a/b/c","/a/b/ca","/a/b/d"]
Constraints
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