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Challenges Expand a greyscale/colour hex code

Q/KDB+, 39 bytes {"#",?[4=count x;x 1 1 2 2 3 3;6#1_x]} Testing the function: q)cc:{"#",?[4=count x;x 1 1 2 2 3 3;6#1_x]} q)cc "#ABCDEF" "#ABCDEF" q)cc "#A" "#AAAAAA" q)cc "#AB" "#ABABAB...

posted 28d ago by Arpad Horvath‭  ·  edited 27d ago by Arpad Horvath‭

Answer
#2: Post edited by user avatar Arpad Horvath‭ · 2025-01-26T07:26:43Z (27 days ago)
Testing
  • **Q/KDB+**, **39 bytes**
  • {"#",?[4=count x;x 1 1 2 2 3 3;6#1_x]}
  • **Q/KDB+**, **39 bytes**
  • {"#",?[4=count x;x 1 1 2 2 3 3;6#1_x]}
  • Testing the function:
  • q)cc:{"#",?[4=count x;x 1 1 2 2 3 3;6#1_x]}
  • q)cc "#ABCDEF"
  • "#ABCDEF"
  • q)cc "#A"
  • "#AAAAAA"
  • q)cc "#AB"
  • "#ABABAB"
  • q)cc "#ABC"
  • "#AABBCC"
  • q) is the prompt, other lines are the outputs. Instead of = the assignment operator is : in Q.
#1: Initial revision by user avatar Arpad Horvath‭ · 2025-01-25T15:07:31Z (28 days ago)
**Q/KDB+**, **39 bytes**

    {"#",?[4=count x;x 1 1 2 2 3 3;6#1_x]}