give nth decimal place of pi
Compute a dot product of two vectors x and y
Volume of a box
Compute LOG(1+X) in natural log
Square a Number
Minimum possible M of the maximum side of a triangle of given area A.
Given an unsigned integer x, find the largest y by rearranging the bits in x
Given n, create n random numbers such that their standard deviation is also n.
Use of regexp
Given a square and a circle, please decide whether the square covers more area.
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