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| author | Abigail <abigail@abigail.be> | 2021-10-19 22:02:01 +0200 |
|---|---|---|
| committer | Abigail <abigail@abigail.be> | 2021-10-19 22:02:01 +0200 |
| commit | 3f9069255c9ab3f2a600ce465fa08e2cb2edc57d (patch) | |
| tree | e616e6fad087a1aed1d693542c50acf01e94eeec /challenge-135/abigail/lua | |
| parent | 32ffa2beeb07181afb6af80ebd749bb8629bf636 (diff) | |
| download | perlweeklychallenge-club-3f9069255c9ab3f2a600ce465fa08e2cb2edc57d.tar.gz perlweeklychallenge-club-3f9069255c9ab3f2a600ce465fa08e2cb2edc57d.tar.bz2 perlweeklychallenge-club-3f9069255c9ab3f2a600ce465fa08e2cb2edc57d.zip | |
Might as well map 'A' to 0.
The SEDOL specification says 'A' maps to 10, 'B' to 11, etc.
However, to perform a checksum, all we care about is module 10
arithmetic. So, whether 'A' maps to 10, or to 0, doesn't matter.
Diffstat (limited to 'challenge-135/abigail/lua')
| -rw-r--r-- | challenge-135/abigail/lua/ch-2.lua | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/challenge-135/abigail/lua/ch-2.lua b/challenge-135/abigail/lua/ch-2.lua index d979fbe2a0..a8c89f57dc 100644 --- a/challenge-135/abigail/lua/ch-2.lua +++ b/challenge-135/abigail/lua/ch-2.lua @@ -21,7 +21,7 @@ for line in io . lines () do local byte = string . byte (line : sub (i, i)) if byte <= string . byte ("9") then byte = byte - string . byte ("0") - else byte = byte - string . byte ("A") + 10 + else byte = byte - string . byte ("A") end check = check + w [i] * byte end |