[copy title]:
Given an absolute path for a file (Unix-style), simplify it.
For example,
path = "/home/", => "/home"
path = "/a/./b/../../c/", => "/c"
[brute force solution]:
Time analysis:
Space Analysis:
[Optimized]:
Time analysis:
Space Analysis:
[Wonderful output conditions]:
[Wonderful corner case]:
Corner Cases:
- Did you consider the case where path =
"/../"?
In this case, you should return"/". - Another corner case is the path might contain multiple slashes
'/'together, such as"/home//foo/".
In this case, you should ignore redundant slashes and return"/home/foo".
[Thinking question]:
[One sentence idea]:
[Input amount]: Empty: Normal situation: Extra large: Extra small: Special situations handled in the program: Abnormal situations (Illegal and unreasonable input):
[Paint]:
[One brush]:
[Second brush]:
[Three brushes]:
[Four brushes]:
[Five brushes]:
[Results of five-minute naked eye debug]:
[Summarize]:
[Complexity]: Time complexity: O( ) Space complexity: O( )
[English data structures or algorithms, why not use other data structures or algorithms]:
Go from left to right:
"/b/c/" - directory 'b ' - > directory 'c ' "." - current directory "./" - current directory "../" - one directory up eg "/" : root directory "b/c/../" : it will go from c to b "c/b/./" : it is still in directory b
[Algorithm idea: recursion/divide and conquer/greedy]:
[Key templating code]:
[Other solutions]:
［Follow Up］：
[The topics given by LC change and change]:
[Code style]: