Matrix Search

August 17, 2018

Today’s exercise is a simple task in matrix manipulation. Given a matrix in which the rows are ordered but the columns or not, efficiently search for a specific item in the matrix. For instance, given the matrix

2 5 8
1 4 7
3 6 9


a search for 6 finds it in row 2 column 1, a search for 8 finds it in row 0 column 2, and a search for 0 fails.

Your task is to write a program that searches a matrix. When you are finished, you are welcome to read or run a suggested solution, or to post your own solution or discuss the exercise in the comments below.


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