Problem 2193. Mysterious digits operation (easy)

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

Solution Comments

Problem Recent Solvers331

Suggested Problems

• Find the palindrome

  1669 Solvers

• Longest Divisor Run

  1364 Solvers

• Rotate input square matrix 90 degrees CCW without rot90

  699 Solvers

• Find the 9's Complement

  356 Solvers

• Volume of a box

  736 Solvers

More from this Author43

• Numbers spiral diagonals (Part 1)

  312 Solvers

• How to reverse spdiags?

  44 Solvers

• Chess ELO rating system

  100 Solvers

• Mirror, mirror on the wall, who is fairest of them all?

  22 Solvers

• Pandigital number n°1 (Inspired by Project Euler 32)

  120 Solvers