Description: Completed apart from C delete all disks other than disk files, delete files in the following write garbage data to the disk to prevent data recovery, the program algorithm using the recursive traversal of the data folder, the program is highly effective, in my testing machine 70G delete data files table only needs 2 minutes, CPU occupancy rate of about 6 (I CPU P4 3G, RAM 1G, sata hard drive), the program can be used as learning a great example of recursive algorithm
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