Saddle Point of a Matrix

An element in a matrix is said to be a saddle point if it is the minimum element in its row and the maximum element in its column. Given an `m x n` matrix, find the saddle point. If multiple saddle points exist, return any of them. If none exists, return `-1`. ### Constraints - `1 <= m, n <= 100` - `-10^4 <= matrix[i][j] <= 10^4` ### Input Format - Line 1: Two space-separated integers `m` and `n`. - Next `m` lines: `n` space-separated integers representing the matrix. ### Output Format Print the saddle point value, or -1.