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DIY: Searching a 2D Matrix

Explore how to implement an efficient search algorithm for a target value in a 2D matrix where each row is sorted, and the first element of each row is greater than the last of the previous. Learn to write the search_matrix function in Ruby that returns a Boolean indicating the presence of the target. This lesson helps you break down matrix search problems commonly seen in coding interviews.

Problem statement

Given an m x n integer matrix and a target value, determine if the target exists in the matrix or not.

The matrix has the following properties:

  • Integers in each row are sorted ...