49 lines
1.2 KiB
Elixir
49 lines
1.2 KiB
Elixir
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defmodule DayREPLACE_ME do
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def part1(input) do
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input
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end
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def part2(input) do
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input
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end
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def run do
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with [input_filename] <- System.argv(),
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{:ok, input} <- File.read(input_filename) do
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run_parts_with_timer(input)
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else
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_ -> print_usage()
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end
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end
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def run_parts_with_timer(input) do
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{p1_microsecs, p1_result} = :timer.tc(fn -> part1(input) end)
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IO.puts("Part 1 (completed in #{format_time(p1_microsecs)}):")
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IO.write("\n")
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IO.puts(p1_result)
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IO.write("\n")
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{p2_microsecs, p2_result} = :timer.tc(fn -> part2(input) end)
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IO.puts("Part 2 (completed in #{format_time(p2_microsecs)}):")
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IO.write("\n")
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IO.puts(p2_result)
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end
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defp format_time(μsec) when μsec < 1_000, do: "#{μsec}μs"
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defp format_time(μsec) when μsec < 1_000_000, do: "#{μsec / 1000}ms"
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defp format_time(μsec) when μsec < 60_000_000, do: "#{μsec / 1_000_000}s"
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defp format_time(μsec) when μsec < 3_660_000_000 do
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total_secs = round(μsec / 1_000_000)
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mins = div(total_secs, 60)
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secs = rem(total_secs, 60)
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"#{mins}m#{secs}s"
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end
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defp print_usage do
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IO.puts("Usage: elixir dayREPLACE_ME.exs input_filename")
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end
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end
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DayREPLACE_ME.run()
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