Problem 2193. Mysterious digits operation (easy)

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

Solution Comments

Problem Recent Solvers323

Suggested Problems

• Simple equation: Annual salary

  4262 Solvers

• Determine the square root

  796 Solvers

• Perfect Square or not

  407 Solvers

• Let's get back to school, and create multiplication tables

  241 Solvers

• Perimeter of a semicircle

  2245 Solvers

More from this Author43

• BLOCK x3 (Version 1)

  10 Solvers

• Getting the indices from a matrix

  726 Solvers

• Find files with extension ext in the current directory

  36 Solvers

• Rank of magic square (for beginners)

  46 Solvers

• Longest Collatz Sequence

  139 Solvers