Day1 done

2025/Day1.lesson.txt

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+Lessons from first day
+
+1. Read! Oh that brain of mine, skipping half the things and missing things like count clicks not end point dial
+2. Setup a proper test, make a smaller input test that you know the answer to to check the code

2025/Day1.test

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+R1000
+L68
+L30
+R48
+L5
+R60
+L55
+L1
+L99
+R14
+L82

2025/Day1b.lua

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+#!/bin/lua
+local Dial = 50
+local CountZero = 0
+local CountClick = 0
+for line in io.lines() do
+	local Direction, Count = line:match("^(%w)(%d+)$")
+	CountClick = CountClick + math.floor(Count / 100)
+	Count = Count - (math.floor(Count / 100) * 100)
+	if Direction == "L" then
+		Count = 0 - Count
+	end
+	if Dial == 0 then
+		Dial = Dial + Count
+	else
+		Dial = Dial + Count
+		if Dial < 0 or Dial > 100 then
+			CountClick = CountClick + 1
+		end
+	end
+
+	Dial = Dial % 100
+	if Dial == 0 then
+		CountZero = CountZero + 1
+	end
+	print("Direction=" .. Direction .. " Count=" .. Count .. " Dial=" .. Dial .. " CountClick=" .. CountClick)
+end
+local Total = CountZero + CountClick
+
+print("Dial " .. Dial)
+print("Zero " .. CountZero)
+print("Clicks " .. CountClick)
+print("Total " .. Total)
+print("Done")