31 lines
576 B
Lua
31 lines
576 B
Lua
#!/usr/bin/env luajit
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require("utils")
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local fishes = {}
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for timer = 0, 9 do
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fishes[timer] = 0
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end
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for _, timer in pairs(split(io.open(arg[3]):read("*a"), ",")) do
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fishes[tonumber(timer)] = fishes[tonumber(timer)] + 1
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end
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for day = 1, 256 do
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fishes[9] = (fishes[0] or 0) + (fishes[9] or 0)
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fishes[7] = (fishes[0] or 0) + (fishes[7] or 0)
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for timer = 0, 9 do
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fishes[timer] = fishes[timer + 1]
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end
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for k = 0, 9 do
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io.write((fishes[k] or "_")..",")
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end
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io.write("\n")
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end
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local sum = 0
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for timer, fishday in pairs(fishes) do
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sum = sum + fishday
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end
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print(sum)
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