Finished Day2-1

Day2-1.cpp

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+//Fun/AdventCalendar2020/Day2-1.cpp
+//Matthew Ellison
+// Created: 12-02-20
+//Modified: 12-02-20
+//Find the two entries that sum to 2020 and then multiply those two numbers together
+
+
+#include <iostream>
+#include <fstream>
+#include <string>
+#include <vector>
+#include "Stopwatch.hpp"
+
+
+struct pswd{
+	int minTimes;
+	int maxTimes;
+	char character;
+	std::string password;
+
+	bool isValid(){
+		//Count the number of times the character appears in the password
+		int count = 0;
+		for(char ch : password){
+			if(ch == character){
+				++count;
+			}
+		}
+		//If the character appeared >= mintimes and <= maxTimes return true
+		return ((count >= minTimes) && (count <= maxTimes));
+	}
+};
+
+
+std::vector<pswd> importData(){
+	std::vector<pswd> passwords;	//Holds the info about all of the passwords
+	std::ifstream inputFile;
+	inputFile.open("inputs/Day2.txt");
+
+	//Loop until you find the end of the file
+	while(!inputFile.eof()){
+		std::string currentLine;	//Holds the current line
+		pswd newPassword;	//Holds the info about the current password
+
+
+		//Read the #-# into a string
+		inputFile >> currentLine;
+
+		//Break the string apart into two numbers
+		std::string minTimesStr;
+		std::string maxTimesStr;
+		int stringLoc = 0;
+		while(isdigit(currentLine[stringLoc])){
+			minTimesStr += currentLine[stringLoc++];
+		}
+		//Skip the -
+		++stringLoc;
+		while(isdigit(currentLine[stringLoc])){
+			maxTimesStr += currentLine[stringLoc++];
+		}
+		//Turn those strings into ints
+		newPassword.minTimes = std::stoi(minTimesStr);
+		newPassword.maxTimes = std::stoi(maxTimesStr);
+
+
+		//Get the letter to look for
+		inputFile >> currentLine;
+
+		//Get just the first character
+		newPassword.character = currentLine[0];
+
+
+		//Get the password
+		inputFile >> currentLine;
+		newPassword.password = currentLine;
+
+
+		//Add the new password to the array
+		passwords.push_back(newPassword);
+	}
+	return passwords;
+}
+
+int main(){
+	mee::Stopwatch timer;
+	int validPasswords = 0;
+	//Get the data from the file
+	std::vector<pswd> passwords = importData();
+
+	//Start the timer
+	timer.start();
+
+	//Find how many of the passwords are valid
+	for(pswd password : passwords){
+		if(password.isValid()){
+			++validPasswords;
+		}
+	}
+
+	//Stop the timer
+	timer.stop();
+
+	//Print the results
+	std::cout << "The number of valid passwords in the file is " << validPasswords
+			<<"\nIt took " << timer.getStr() << " to finish this problem" << std::endl;
+
+	return 0;
+}
+
+/* Results:
+The number of valid passwords in the file is 572
+It took 0.000 nanoseconds to finish this problem
+*/