Card Number Validation in Ruby in Chars Play Hole
7th in Ruby and 85th overall.
Last tested .
| Bytes | Chars | Submitted |
|---|---|---|
| 55 | 55 | |
| 56 | 56 | |
| 57 | 57 | |
| 60 | 60 | |
| 61 | 61 |
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