Return the nth rational number.
The first ten positive rational numbers under the enumeration using cantors diagonalization argument are 1/1, 2/1, 1/2, 3/1, 2/2, 1/3, 4/1, 3/2, 2/3, 1/4.
Find the index of a positive rational number enumerated in this manner, i.e. the 6th rational number is 1/3.
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Is that possible to have a ranking of the solutions based on their performing time? I think that the could be a method that is fast even if more sized.
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provides inexpensive method. There is only one 2nd order polynomial solution and one division.