Find the mode of the vector
Assumption: no vector is bimodal
Example 1: input=[1 2 3 4 4]; output=4
Example 2: input=[7 1 2 7]; output=7
I never know that a funtion call "mode" actually do exist!:lol
Find the numeric mean of the prime numbers in a matrix.
Sorted highest to lowest?
Number of digits in an integer
How many jokers?
Change the sign of even index entries of the reversed vector
Insert zeros into vector
Duplicate a character
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