32 lines
759 B
Lua
32 lines
759 B
Lua
file = io.open("input")
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io.input(file)
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score = 0
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data = {}
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for line in file:lines() do
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table.insert(data, line)
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end
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function find_duplicates(one, two, three)
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for i = 1, #one do
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local char = string.sub(one, i, i)
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if string.find(two, char) and string.find(three, 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 i = 1, #data/3 do
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local one = data[(i-1)*3+1]
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local two = data[(i-1)*3+2]
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local three = data[(i-1)*3+3]
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score = score + find_duplicates(one, two, three)
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end
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print(score)
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