Median of Rows

Given a 2D matrix of integers where each row is sorted in non-decreasing order, find the median of the complete matrix. The median is the middle element when the elements are sorted. If the number of elements is even, return the average of the two middle values. Input: - The first line contains two integers m (number of rows) and n (number of columns), - The next m lines each contain n integers representing the matrix. Output: - A float representing the median value. Example: Input: 3 3 1 3 5 2 6 8 0 9 10 Output: 5