Prerequisites: Matrix, Loops
Problem: Given an N x M matrix, print it upside down, with the last row appearing first, the second-to-last row appearing second, and so on, until the first row appears last.
Solution Approach:
We can traverse the matrix in reverse order (from the last row to the first row) and print each row element by element. The print each row followed by a newline character after printing all elements of the row.
Time Complexity:
The time complexity of this solution is O(N * M), where N is the number of rows and M is the number of columns in the matrix. This complexity arises from traversing all elements of the matrix.
Space Complexity: O(1), as we don’t need any extra space.