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

• Remove any row in which a NaN appears

  8779 Solvers

• Back to basics 25 - Valid variable names

  339 Solvers

• Test if two numbers have the same digits

  266 Solvers

• Narcissistic number ?

  354 Solvers

• Convert given decimal number to binary number.

  2313 Solvers

More from this Author43

• Permute diagonal and antidiagonal

  508 Solvers

• Rank of magic square (for beginners)

  46 Solvers

• Find Missing Number

  69 Solvers

• Find indices of diagonal elements

  73 Solvers

• Numbers spiral diagonals (Part 2)

  200 Solvers