C++ PROGRAM
You are given a matrix A of format n x m. You need to create anew matrix B of the same format which essentially is the matrix Aup-side down!
Input
3
4
1 2 3 4
5 6 7 8
9 10 11 12
Output
12 11 10 9
8 7 6 5
4 3 2 1
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