Problem 2193. Mysterious digits operation (easy)

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

Solution Comments

Problem Recent Solvers293

Suggested Problems

• Remove the small words from a list of words.

  1526 Solvers

• Back to basics 15 - classes

  522 Solvers

• Reverse a matrix

  526 Solvers

• If-then-else

  370 Solvers

• multiply by three

  956 Solvers

More from this Author43

• Find indices of diagonal elements

  66 Solvers

• Pandigital number n°3 (Inspired by Project Euler 32)

  39 Solvers

• Without the French accent please!

  218 Solvers

• Numbers spiral diagonals (Part 1)

  209 Solvers

• Find my secret number

  16 Solvers