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Add note about String.at

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Adam Millerchip 2020-12-02 16:20:40 +09:00
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commit 6176502be9
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day2/README
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@ -26,3 +26,6 @@ No xor operator without importing Bitwise? Just write it manually.
Initially misread the problem - thought first position must match, and second position must not match,
which caused some confusion.
Probably rebound to the same variable names a bit too much - should work on clearer variable names.
After reading the elixir forum thread, String.at would have been fine for Part 2.
https://elixirforum.com/t/advent-of-code-2020-day-2