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];
Find common elements in matrix rows
Number of 1s in the Binary Representation of a Number
Rotate input square matrix 90 degrees CCW without rot90
Element by element multiplication of two vectors
RISK board game battle simulation
Penny flipping - calculate winning probability (easy)
It's race time again! Write a function that is at least twice as fast as the test suite call of repmat().
Calculate the probability that at least two people in a group share the same birthday.
It's race time! Write a faster function than the test suite call of unique().
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