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Given an 2D array which is row and column wise sorted. What is the efficient way to search for an element?
For example, given a 2D array (a matrix)
{{1, 2, 3, 4},
{5, 6, 7, 8},
{9, 10, 11, 12}}
What are the solutions to find a number? say 6.
Here's the code I tried using Binary search method -
(code ...
