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.
231 Solvers
Find the sum of the elements in the "second" diagonal
849 Solvers
Split a string into chunks of specified length
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104 Solvers
Integer sequence - 2 : Kolakoski sequence
71 Solvers