/**
 * https://leetcode.cn/problems/search-a-2d-matrix/
 * 
 *  m x n 
 * - 
 * - 
 * 
 *  1
 * matrix = [[1,3,5,7],[10,11,16,20],[23,30,34,60]], target = 3
 * true
 * 
 *  2
 * matrix = [[1,3,5,7],[10,11,16,20],[23,30,34,60]], target = 13
 * false
 * 
 * 
 * m == matrix.length
 * n == matrix[i].length
 * 1