Added day 2 and 3, but didn't do them in rust like I wanted to.

2022/2/main.cpp

@@ -8,6 +8,12 @@ enum RPS {
 	Scissors,
 };
 
+enum Result {
+	Lose = 1,
+	Draw,
+	Win,
+};
+
 RPS ToRPS(char c)
 {
 	if(c == 'A' || c == 'X')
@@ -46,6 +52,28 @@ bool Won(RPS us, RPS them)
 	return false;
 }
 
+RPS Which(RPS them, Result desired)
+{
+	if(desired == Result::Draw)
+		return them; // same
+
+	switch(them)
+	{
+	case RPS::Rock:
+		if(desired == Result::Lose)
+			return RPS::Scissors;
+		return RPS::Paper;
+	case RPS::Paper:
+		if(desired == Result::Lose)
+			return RPS::Rock;
+		return RPS::Scissors;
+	case RPS::Scissors:
+		if(desired == Result::Lose)
+			return RPS::Paper;
+		return RPS::Rock;
+	}
+}
+
 int Points(RPS us, RPS them)
 {
 	int rtn = 0;
@@ -73,16 +101,27 @@ int main()
 	}
 
 	unsigned long total = 0;
+	unsigned long new_total = 0;
 
 	for(std::string line; std::getline(ifs, line); )
 	{
 		char them = line[0];
 		char us = line[2];
 
+		Result r = Result::Lose;
+		if(us == 'Y')
+			r = Result::Draw;
+		else if(us == 'Z')
+			r = Result::Win;
+
+		RPS todo = Which(ToRPS(them), r);
+
 		total += Points(ToRPS(us), ToRPS(them));
+		new_total += Points(todo, ToRPS(them));
 	}
 
-	std::cout << "Total: " << total << std::endl;
+	std::cout << "    Total: " <<     total << std::endl;
+	std::cout << "New Total: " << new_total << std::endl;
 
 	return 0;
 }