Day 8 Part 2 apparently! Just took forever. :P

Day 8/Day 8.vcxproj

@@ -70,6 +70,12 @@
     <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
   </ImportGroup>
   <PropertyGroup Label="UserMacros" />
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
+    <TargetName>$(ProjectName)3</TargetName>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
+    <TargetName>$(ProjectName)3</TargetName>
+  </PropertyGroup>
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
     <ClCompile>
       <WarningLevel>Level3</WarningLevel>

Day 8/day8_1.txt

@@ -1,9 +1,10 @@
-RL
+LR
 
-AAA = (BBB, CCC)
+11A = (11B, XXX)
-BBB = (DDD, EEE)
+11B = (XXX, 11Z)
-CCC = (ZZZ, GGG)
+11Z = (11B, XXX)
-DDD = (DDD, DDD)
+22A = (22B, XXX)
-EEE = (EEE, EEE)
+22B = (22C, 22C)
-GGG = (GGG, GGG)
+22C = (22Z, 22Z)
-ZZZ = (ZZZ, ZZZ)
+22Z = (22B, 22B)
+XXX = (XXX, XXX)

Day 8/main.cpp

@@ -30,9 +30,54 @@ std::map<std::string,std::pair<std::string,std::string>>nodes;
 
 std::string instructions;
 
-std::string currentNode="AAA";
+struct Node{
+	std::string val;
+	std::string startingNode;
+};
+
+std::vector<Node> currentNodes;
 int instructionIndex=0;
 
+void doStuff2(){
+	while(true){ //lines is accessible as a global.
+		bool firstLine=true;
+		for(int lineNumb=0;std::string&line:lines){
+			if(lineNumb==0){
+				instructions=line;
+			}else
+			if(lineNumb>=2){
+				std::string node=line.substr(0,3);
+				nodes[node]={line.substr(line.find('(')+1,3),line.substr(line.find(')')-3,3)};
+				if(node[2]=='A'){
+					currentNodes.push_back({node,node});
+				}
+			}
+			lineNumb++;
+		}
+		long long step=0;
+		bool notAtZ=true;
+		while(notAtZ){
+			notAtZ=false;
+			for(auto&[val,startingNode]:currentNodes){
+				char currentInstruction=instructions[instructionIndex];
+				if(currentInstruction=='R'){
+					val=nodes[val].second;
+				}else{
+					val=nodes[val].first;
+				}
+				if(val[2]!='Z'){
+					notAtZ=true;
+				}
+			}
+			instructionIndex=(instructionIndex+1)%instructions.length();
+			step++;
+		}
+		std::cout<<step<<std::endl;
+		break;
+		//wait(0); //Wait for 0ms and render the screen (calls draw())
+	}
+}
+/*
 void doStuff(){
 	while(true){ //lines is accessible as a global.
 		bool firstLine=true;
@@ -61,7 +106,7 @@ void doStuff(){
 		//wait(0); //Wait for 0ms and render the screen (calls draw())
 	}
 }
-
+*/
 void draw(){ //Only use Sprites! If using decals, you must reference global variables!
 	Clear(BLACK);
 	int count=0;
@@ -97,7 +142,7 @@ public:
 
 	bool OnUserUpdate(float fElapsedTime) override
 	{
-		static std::thread aocSolver(&AoC2023::doStuff,this);
+		static std::thread aocSolver(&AoC2023::doStuff2,this);
 
 		if(waitForRender){
 			draw();