Solution for Day 1 in C++

2025/Cpp/AdventHelpers/include/AdventHelpers/AdventOfCodeSolution.h

@@ -1,13 +1,62 @@
 #pragma once
 
 #include "AdventHelpers/InputFileHelper.h"
+#include <iostream>
 
 namespace AdventHelpers
 {
-	class IAdventOfCodeSolution {
+	class AdventOfCodeSolution {
 	public:
-		virtual void SolveExample(AdventHelper::InputFileHelper& inputFile) = 0;
+		virtual std::string SolveProblem01(AdventHelpers::InputFileHelper& inputFile) = 0;
-		virtual void SolveProblem01(AdventHelper::InputFileHelper& inputFile) = 0;
+		virtual std::string SolveProblem02(AdventHelpers::InputFileHelper& inputFile) = 0;
-		virtual void SolveProblem02(AdventHelper::InputFileHelper& inputFile) = 0;
+
+		inline AdventHelpers::InputFileHelper* GetExampleInputFile();
+		inline AdventHelpers::InputFileHelper* GetProblemInputFile();
+
+		void SolveAll() {
+			auto* exampleInput = GetExampleInputFile();
+			if (!exampleInput) {
+				std::cerr << "Failed to load example input file." << std::endl;
+				return;
+			}
+
+			auto* problemInput = GetProblemInputFile();
+			if (!problemInput) {
+				std::cerr << "Failed to load problem input file." << std::endl;
+				AdventHelpers::InputFileHelper::destroy(exampleInput);
+				return;
+			}
+
+			// Problem 01, example input
+			std::cout << "Solving problem 01 using example input..." << std::endl;
+			auto exampleResult01 = SolveProblem01(*exampleInput);
+			std::cout << "|- Got result: " << exampleResult01 << std::endl;
+
+			// Problem 01, puzzle input
+			std::cout << "Solving problem 01 using puzzle input..." << std::endl;
+			auto problemResult01 = SolveProblem01(*problemInput);
+			std::cout << "|- Got result: " << problemResult01 << std::endl;
+			
+			// Problem 02, example input
+			std::cout << "Solving problem 02 using example input..." << std::endl;
+			auto exampleResult02 = SolveProblem02(*exampleInput);
+			std::cout << "|- Got result: " << exampleResult02 << std::endl;
+
+			// Problem 02, puzzle input
+			std::cout << "Solving problem 02 using puzzle input..." << std::endl;
+			auto problemResult02 = SolveProblem02(*problemInput);
+			std::cout << "|- Got result: " << problemResult02 << std::endl;
+
+			AdventHelpers::InputFileHelper::destroy(exampleInput);
+			AdventHelpers::InputFileHelper::destroy(problemInput);
+		}
 	};
+
+	AdventHelpers::InputFileHelper* AdventOfCodeSolution::GetExampleInputFile() {
+		return AdventHelpers::InputFileHelper::create("example-input.txt");
+	}
+
+	AdventHelpers::InputFileHelper* AdventOfCodeSolution::GetProblemInputFile() {
+		return AdventHelpers::InputFileHelper::create("puzzle-input.txt");
+	}
 }

2025/Cpp/AdventHelpers/include/AdventHelpers/InputFileHelper.h

@@ -3,7 +3,7 @@
 #include <vector>
 #include <string>
 
-namespace AdventHelper {
+namespace AdventHelpers {
 	// Interface
 	class InputFileHelper {
 	public:

2025/Cpp/AdventHelpers/source/InputFileHelper.cpp

@@ -4,7 +4,7 @@
 #include <string>
 #include <iostream>
 
-namespace AdventHelper {
+namespace AdventHelpers {
 	// Opens file, reads each line into mLines vector.  Returns null on error.
 	InputFileHelper* InputFileHelper::create(const char* filename) {
 		InputFileHelper* inputFileHelper = nullptr;

2025/Cpp/AdventHelpersTester/AdventHelpersTester.cpp

@@ -5,32 +5,32 @@
 
 // Interface
 
-class ExampleSolution : public AdventHelpers::IAdventOfCodeSolution
+//class ExampleSolution : public AdventHelpers::IAdventOfCodeSolution
-{
+//{
-public:
+//public:
-	virtual void SolveExample(AdventHelper::InputFileHelper& inputFile) override;
+//	virtual std::string SolveExample01(AdventHelper::InputFileHelper& inputFile) override;
-	virtual void SolveProblem01(AdventHelper::InputFileHelper& inputFile) override;
+//	virtual std::string SolveProblem01(AdventHelper::InputFileHelper& inputFile) override;
-	virtual void SolveProblem02(AdventHelper::InputFileHelper& inputFile) override;
+//	virtual std::string SolveProblem02(AdventHelper::InputFileHelper& inputFile) override;
-};
+//};
 
 int main()
 {
-	auto* inputHelper = AdventHelper::InputFileHelper::create("input.txt");
+	auto* inputHelper = AdventHelpers::InputFileHelper::create("input.txt");
 
     std::cout << "Hello World!\n";
 
-	AdventHelper::InputFileHelper::destroy(inputHelper);
+	AdventHelpers::InputFileHelper::destroy(inputHelper);
 }
 
 // Implementation
 
-void ExampleSolution::SolveExample(AdventHelper::InputFileHelper& inputFile) {
+//void ExampleSolution::SolveExample(AdventHelper::InputFileHelper& inputFile) {
-
+//
-}
+//}
-
+//
-void ExampleSolution::SolveProblem01(AdventHelper::InputFileHelper& inputFile) {
+//void ExampleSolution::SolveProblem01(AdventHelper::InputFileHelper& inputFile) {
-
+//
-}
+//}
-
+//
-void ExampleSolution::SolveProblem02(AdventHelper::InputFileHelper& inputFile) {
+//void ExampleSolution::SolveProblem02(AdventHelper::InputFileHelper& inputFile) {
-}
+//}

2025/Cpp/AdventOfCode.slnx

@@ -5,4 +5,5 @@
   </Configurations>
   <Project Path="AdventHelpers/AdventHelpers.vcxproj" Id="df572ffd-18c6-4b8d-8d35-4855f9a05376" />
   <Project Path="AdventHelpersTester/AdventHelpersTester.vcxproj" Id="8771a5e2-83fe-497e-8598-18dbf552d6b3" />
+  <Project Path="Day01/Day01.vcxproj" Id="ea6fa096-2ae5-4dd8-9834-b032b6ba9e6b" />
 </Solution>

2025/Cpp/Day01/Day01.cpp

@@ -0,0 +1,130 @@
+#include "AdventHelpers/AdventOfCodeSolution.h"
+
+#include <iostream>
+#include <cassert>
+#include <string>
+
+class Dial {
+public:
+	Dial(bool debug = false, int initialPosition = 50, int minPosition = 0, int maxPosition = 99)
+        : mDebug(debug)
+        , mPosition(initialPosition)
+		, mMinPosition(minPosition)
+        , mMaxPosition(maxPosition) 
+    {
+
+    }
+
+    // Returns number of times it passes 0
+    int TurnLeft(int amount) {
+        int clicksAtZero = 0;
+
+        if (mDebug) std::cout << "Turning left " << amount << " from " << mPosition;
+    
+        while (amount > 0) {
+            if (mPosition == 0) {
+                mPosition = mMaxPosition;
+            }
+            else {
+                mPosition--;
+				if (mPosition == 0) clicksAtZero++;
+            }
+            amount--;
+        }
+
+        assert(amount == 0);
+        if (mDebug) std::cout << " Ended at: " << mPosition << std::endl;
+
+        return clicksAtZero;
+	}
+
+    // Returns number of times it passes 0
+    int TurnRight(int amount) {
+        int clicksAtZero = 0;
+
+        if (mDebug) std::cout << "Turning right " << amount << " from " << mPosition;
+    
+        while (amount > 0) {
+            if (mPosition == mMaxPosition) {
+                mPosition = 0;
+                clicksAtZero++;
+            }
+            else {
+                mPosition++;
+            }
+            amount--;
+        }
+		assert(amount == 0);
+        if (mDebug) std::cout << " Ended at: " << mPosition << std::endl;
+
+        return clicksAtZero;
+    }
+
+    int GetPosition() const {
+        return mPosition;
+	}
+private:
+    const bool mDebug;
+    const int mMaxPosition;
+    const int mMinPosition;
+    int mPosition;
+};
+
+class Day01Solution : public AdventHelpers::AdventOfCodeSolution
+{
+public:
+    virtual std::string SolveProblem01(AdventHelpers::InputFileHelper& inputFile) override {
+        Dial dial;
+        int password = 0;
+
+		for (const auto& line : inputFile) {
+            assert(line.length() >= 2);
+			char direction = line[0];
+            int amount = std::stoi(line.substr(1));
+
+            if (direction == 'L') {
+                dial.TurnLeft(amount);
+            }
+            else if (direction == 'R') {
+                dial.TurnRight(amount);
+            }
+            else {
+                assert(false && "Invalid direction");
+			}
+
+            if (dial.GetPosition() == 0) {
+                password++;
+            }
+        }
+        return std::to_string(password);
+    }
+
+    virtual std::string SolveProblem02(AdventHelpers::InputFileHelper& inputFile) override {
+        Dial dial;
+        int clicksAtZero = 0;
+
+        for (const auto& line : inputFile) {
+            assert(line.length() >= 2);
+            char direction = line[0];
+            int amount = std::stoi(line.substr(1));
+
+            if (direction == 'L') {
+                clicksAtZero += dial.TurnLeft(amount);
+            }
+            else if (direction == 'R') {
+                clicksAtZero += dial.TurnRight(amount);
+            }
+            else {
+                assert(false && "Invalid direction");
+            }
+        }
+        return std::to_string(clicksAtZero);
+    }
+};
+
+int main()
+{
+	Day01Solution solution;
+	solution.SolveAll();
+}
+

2025/Cpp/Day01/Day01.vcxproj

@@ -0,0 +1,140 @@
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2025/Cpp/Day01/Day01.vcxproj.filters

@@ -0,0 +1,22 @@
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2025/Cpp/Day01/example-input.txt

@@ -0,0 +1,10 @@
+L68
+L30
+R48
+L5
+R60
+L55
+L1
+L99
+R14
+L82