Given n people, everyone must have pictures taken with everyone, each photo includes only two persons, please count the total number of pictures.
Remove all the consonants
Clean the List of Names
Change the sign of even index entries of the reversed vector
Determine the number of odd integers in a vector
03 - Matrix Variables 2
Distance walked 2D
Given n, create n random numbers such that their standard deviation is also n.
How many jokers?
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