Added day 6 (two programs. had to rewrite for the second problem). Added starter files.

2022/starter/Makefile

@@ -0,0 +1,2 @@
+a.out: main.cpp
+	clang++ -std=c++2b -g -O0 main.cpp

2022/starter/main.cpp

@@ -0,0 +1,29 @@
+#include <fstream>
+#include <iostream>
+#include <set>
+#include <string>
+#include <vector>
+
+int main()
+{
+	std::ifstream ifs("data.txt");
+	if(!ifs.is_open())
+	{
+		std::cerr << "Missing data.txt." << std::endl;
+		return -1;
+	}
+
+	unsigned long total = 0;
+	unsigned long total_pt2 = 0;
+
+	for(std::string line; std::getline(ifs, line); )
+	{
+		if(line == "")
+			continue;
+	}
+
+	std::cout << "    Total: " <<     total << std::endl;
+	std::cout << "PT2 Total: " << total_pt2 << std::endl;
+
+	return 0;
+}