Hash function for matrix
Difference between en1 and en2, changed 145 character(s)
How can I generate hash function for matrix ? or how can we compare if two submatrix are equal or not ?↵
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**EDIT** : tagging source [problem](https://www.spoj.com/problems/DSUBMTR/) , just to make sure it's not from an ongoing contest | interview.

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  Rev. Lang. By When Δ Comment
en2 English __RS__ 2022-05-09 10:55:09 145 Tiny change: 'ng contest| intervie' -> 'ng contest | intervie'
en1 English __RS__ 2022-05-09 10:40:08 127 Initial revision (published)