Given n people, everyone must have pictures taken with everyone, each photo includes only two persons, please count the total number of pictures.
Back to basics 11 - Max Integer
The Answer to Life, the Universe, and Everything
Sum the numbers on the main diagonal
Evaluating a polynomial
Matlab Basics - y as a function of x
Calories in a slice of pizza?
Sorted highest to lowest?
letter yes yes & letter no no
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