Code Golf: Numeric Equivalent of an Excel Column-Name

Posted by Vivin Paliath on Stack Overflow See other posts from Stack Overflow or by Vivin Paliath
Published on 2010-04-14T02:06:45Z Indexed on 2010/04/14 2:13 UTC
Read the original article Hit count: 476

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code-golf

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puzzle

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interview-questions

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whiteboard-coding

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excel

Can you figure out the numeric equivalent of an Excel column string in the shortest-possible way, using your favorite language? For example, the A column is 1, B is 2, so on and so forth. Once you hit Z, the next column becomes AA, then AB and so on.

Rules:

Here is some sample input and output:

A:    1
B:    2
AD:   30
ABC:  731
WTF:  16074
ROFL: 326676

I don't know if the submitter is allowed to post a solution, but I have a Perl solution that clocks in at 125 characters :).

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