32 lines
771 B
Lua
32 lines
771 B
Lua
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local file = io.open("input.txt")
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local contents = file:read("*l")
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local priority = 0
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function table.contains(table, element)
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for _, value in pairs(table) do
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if value == element then
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return true
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end
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end
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return false
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end
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while contents do
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local len = string.len(contents)
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local comp1 = {}
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string.gsub(string.sub(contents, 1, len / 2 + 1), ".",function(c) table.insert(comp1,c) end)
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local comp2 = {}
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string.gsub(string.sub(contents, len / 2 + 1, len), ".",function(c) table.insert(comp2,c) end)
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for _, v in ipairs(comp1) do
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if table.contains(comp2, v) then
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priority = priority + string.byte(v)
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break
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end
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end
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contents = file:read("*l")
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end
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print(priority)
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