Its simple. You have to reverse a given matrix.
The problem is really to just reverse a row vector. A row vector happens to be a matrix, but so does a column vector, and two or more dimensional matrices. Saying, "reverse a matrix" is ambiguous.
Project Euler: Problem 7, Nth prime
07 - Common functions and indexing 5
Produce a sine wave
Convert a number to its Roman representation
Concatenate two strings
Find the area of the four walls
Find the square of the sum of the digits of a number
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