Problem 2193. Mysterious digits operation (easy)

 0    -> 0
 1    -> 9
 121  -> 9
 44   -> 6
 15   -> 5
 1243 -> 7
 ...

Solution Comments

Problem Recent Solvers321

Suggested Problems

• Encode Roman Numerals

  2009 Solvers

• Inner product of two vectors

  12201 Solvers

• Numbers with prime factors 2, 3 and 5.

  682 Solvers

• Find the largest value in the 3D matrix

  1668 Solvers

• Implement simple rotation cypher

  1096 Solvers

More from this Author43

• Narcissistic number ?

  352 Solvers

• How to reverse spdiags?

  43 Solvers

• Expression or variable?

  23 Solvers

• Generalised Hamming Number

  361 Solvers

• Find indices of diagonal elements

  73 Solvers