Solution: Find Duplicate File in System
Explore how to find duplicate files in a system by parsing directory paths and using hash maps to group files with identical content. Understand the step-by-step algorithm to efficiently solve this common coding interview problem. This lesson helps you analyze file data, implement key-value operations, and optimize time and space complexity in Go.
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Statement
Given a list of directory information named paths, where each directory contains file paths and their respective contents, identify all the duplicate files in the system based on their contents. Each duplicate group should contain at least two files with identical content, and the output should list these groups with the full paths of the duplicate files. Each entry in the input list is formatted as follows:
"root_directory/dir_1/dir_2/…/dir_m file_1.txt(file_1_content) file_2.txt(file_2_content) … file_n.txt(file_n_content)"
This indicates there are n files (file_1.txt, file_2.txt, …, file_n.txt) with respective contents (file_1_content, file_2_content, …, file_n_content) in the directory "root_directory/dir_1/dir_2/…/dir_m". The output should be a list of groups containing the paths of files sharing the same content. Each file path should follow the format given below:
"directory_path/file_name.txt".
The order of the groups or the paths within them does not matter.
Constraints:
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