Given n people, everyone must have pictures taken with everyone, each photo includes only two persons, please count the total number of pictures.
Reverse the Words (not letters) of a String
Implement simple rotation cypher
03 - Matrix Variables 1
Create a two dimensional zero matrix
chance in percent for minimum K heads when a good coin is tossed N times?
Surface Fit z(x,y)
pressure to dB?
Minimum possible M of the maximum side of a triangle of given area A.
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