Problem 2193. Mysterious digits operation (easy)

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

Solution Comments

Problem Recent Solvers315

Suggested Problems

• Return the 3n+1 sequence for n

  8487 Solvers

• Counting Sequence

  2176 Solvers

• surrounded matrix

  1446 Solvers

• Largest Twin Primes

  987 Solvers

• Reverse a matrix

  550 Solvers

More from this Author43

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

  43 Solvers

• Find files with extension ext in the current directory

  34 Solvers

• Recycled Numbers (CodeJam Qualification Round 2012)

  23 Solvers

• BLOCK x3 (Version 3)

  9 Solvers

• Narcissistic number ?

  348 Solvers