71. Simplify Path

Practice Simplify Path for free on NudgeCode: Medium, Stack pattern. Write it in Python or JavaScript, run the tests in your browser, and ask for a hint when you are stuck.

Given an absolute Unix-style file path (starting with /), return its simplified canonical form.

• . means the current directory and .. means the parent directory (.. at the root stays at the root)
• repeated slashes like // count as one /
• any other name, including ..., is a normal directory name

The result starts with a single /, separates names with one /, and has no trailing / (except the root itself, "/").

Example

path = "/a/./b/../../c/"  ->  "/c"

Constraints

• 1 <= path.length <= 3000
• path has letters, digits, ., / and _, and starts with /