freemedom

## comment.md

      
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                freemedom
                / comment.md
            
            
              Last active
              January 9, 2023 06:19
            
              
                Comments on a StackOverflow answer
              
          
    I think some parts of this answer are not easy to understand, so I added some explanations.
The meaning of this answer is

physical block in the question >> should be logical block

logical block in the question >> should be virtual block


If the first (or zeroth) logical block of the file is Z, then the mapping from any virtual block to logical block N is N-Z.