Card Number Validation in Ruby in Chars Play Hole
15th in Ruby and 309th overall.
Last tested .
| Bytes | Chars | Submitted |
|---|---|---|
| 64 | 64 | |
| 65 | 65 | |
| 66 | 66 | |
| 67 | 67 | |
| 70 | 70 | |
| 72 | 72 | |
| 75 | 75 |
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