The Card Number Validation hole will go live in . Why not try and solve it ahead of time?

bidger

18,425
•
18,089
🥇0
•
🥈0
•
🥉0

⛳

35 / 108 Holes

🔣

3 / 58 Langs

🏆

14 / 75 Cheevos

📅

Number Spiral in Java in Chars Play Hole

21st in Java and 674th overall.

Last tested .

Bytes Chars Submitted
360 360