Well, the answer is dynamic arrays. Suppose you have a list, the list instance often has the greater capacity than the current i.e if it has 4 or 5 elements then it can store much more than that but ...

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Merge sort on 2D array in python. It sorts row-wise, then column-wise. - Yomna521/2D-Array-Merge-Sort. Merge sort on 2D array in python. ... • Line 1 contains two space separated integers M and N, i.e ...