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.
Solution Stats
Problem Comments
2 Comments
Solution Comments
Show comments
Loading...
Problem Recent Solvers178
Suggested Problems
-
Remove all the words that end with "ain"
2723 Solvers
-
Replace NaNs with the number that appears to its left in the row.
3070 Solvers
-
529 Solvers
-
726 Solvers
-
5252 Solvers
More from this Author10
Problem Tags
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!
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.
Solution
provides inexpensive method. There is only one 2nd order polynomial solution and one division.