Given an input element x, and the dimensions, (m, n) return a matrix of size m x n filled with element x.
Input: repl_mat(2, 2, 5)
Output: [2, 2, 2, 2, 2; 2, 2, 2, 2, 2];
Determine Whether an array is empty
Getting the indices from a vector
How long is the longest prime diagonal?
Rotate a Matrix by 90 degrees
Penny flipping - calculate winning probability (easy)
RISK board game battle simulation
Determine the number of odd integers in a vector
It's race time! Write a faster function than the test suite call of unique().
It's race time again! Write a function that is at least twice as fast as the test suite call of repmat().
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