Given n people, everyone must have pictures taken with everyone, each photo includes only two persons, please count the total number of pictures.
Given a window, how many subsets of a vector sum positive
Matrix which contains the values of an other matrix A at the given locations.
03 - Matrix Variables 5
Produce a sine wave
An asteroid and a spacecraft
Volume of this donut
Check if sorted
Given n, create n random numbers such that their standard deviation is also n.
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