Convert a given number to its Roman representation.
For example, if the number is 98, it should display 'XCVIII'
copy of Problem 63.
Program an exclusive OR operation with logical operators
Back to basics 20 - singleton dimensions
Duplicate each element of a vector.
Find a Pythagorean triple
Let's get back to school, and create multiplication tables
Find the dimensions of a matrix
Find the area of the four walls
Find the square of the sum of the digits of a number
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