Problem 49572. Compute the largest number possible with the Brussels choice
The Brussels choice (or Choix de Bruxelles) operation changes one number to another by taking a substring of the digits and either doubling it or (if the number is even) halving it. For example, starting with 9 and highlighting substrings, one can generate this sequence:
9, 18, 36, 312, 622, 644, 1288, 1488,...
Another possibility is
9, 18, 116, 232, 464, 924, 1844, 1888,...
Both of these excerpts have eight entries, but the second ends in a larger number than the first.
Write a function that takes an initial value and determines the largest number resulting after n steps. In the above examples, = 9 and . Return the number as a character string.
Solution Stats
Problem Comments
Solution Comments
Show commentsProblem Recent Solvers12
Suggested Problems
-
1227 Solvers
-
9013 Solvers
-
Implement a bubble sort technique and output the number of swaps required
266 Solvers
-
900 Solvers
-
Area of an equilateral triangle
5757 Solvers
More from this Author249
Problem Tags
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!