Find the number of points (x,y) in square lattice with x^2 + y^2 =< n. This is related to Jame's Problem 1387. Here you have to find the number of points within a circle.
DNA N-Gram Distribution
Arrange Vector in descending order
Is this matrix orthogonal?
The Answer to Life, the Universe, and Everything
Find the nearest prime number
Change the sign
Fahrenheit to Celsius converter
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