27 lines
674 B
Lua
27 lines
674 B
Lua
file = io.open("input")
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io.input(file)
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score = 0
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function find_duplicates(first, second)
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for i = 1, #first do
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local char = string.sub(first, i, i)
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if string.match(second, char) then
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if char == string.upper(char) then
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return string.byte(char) - string.byte("A") + 27
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elseif char == string.lower(char) then
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return string.byte(char) - string.byte("a") + 1
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end
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end
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end
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end
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for line in file:lines() do
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local first = string.sub(line, 1, #line/2)
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local second = string.sub(line, #line/2 + 1, #line)
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score = score + find_duplicates(first, second)
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end
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print(score)
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