Added solution to Day4-2

Day4-1.cpp

@@ -129,5 +129,6 @@ int main(){
 }
 
 /* Results:
-
+There are 228 valid passports
+It took 1.999 milliseconds to finish this problem
 */

Day4-2.cpp

@@ -0,0 +1,307 @@
+//Fun/AdventCalendar2020/Day4-1.cpp
+//Matthew Ellison
+// Created: 12-04-20
+//Modified: 12-04-20
+//Validate passport data
+
+
+#include <iostream>
+#include <fstream>
+#include <string>
+#include <vector>
+#include "Stopwatch.hpp"
+#include "Algorithms.hpp"
+
+
+struct passport{
+	std::string birthYear;
+	std::string issueYear;
+	std::string expirationYear;
+	std::string height;
+	std::string hairColor;
+	std::string eyeColor;
+	std::string passportId;
+	std::string countryId;
+	//Returns true if the passport is valid
+	bool isValid(){
+		if(birthYearIsValid() && issueYearIsValid() && expirationYearIsValid() && heightIsValid() && hairColorIsValid() && eyeColorIsValid() && passportIdIsValid()){
+			return true;
+		}
+		else{
+			return false;
+		}
+	}
+	//Returns true if the string is a valid string
+	bool validString(std::string str){
+		if(!str.empty()){
+			return true;
+		}
+		else{
+			return false;
+		}
+	}
+	bool birthYearIsValid(){
+		//There must be four digits
+		if(birthYear.size() != 4){
+			return false;
+		}
+		//That are all numbers
+		for(char ch : birthYear){
+			if(!std::isdigit(ch)){
+				return false;
+			}
+		}
+		//The number must be 1920 <= x <= 2002
+		int num = std::stoi(birthYear);
+		if((num < 1920) || (num > 2002)){
+			return false;
+		}
+
+		//If none of the other conditions were hit return true;
+		return true;
+	}
+	bool issueYearIsValid(){
+		//There must be four digits
+		if(issueYear.size() != 4){
+			return false;
+		}
+		//That are all numbers
+		for(char ch : issueYear){
+			if(!std::isdigit(ch)){
+				return false;
+			}
+		}
+		//The number must be 2010 <= x <= 2020
+		int num = std::stoi(issueYear);
+		if((num < 2010) || (num > 2020)){
+			return false;
+		}
+
+		//If none of the other conditions were hit return true;
+		return true;
+	}
+	bool expirationYearIsValid(){
+		//There must be four digits
+		if(expirationYear.size() != 4){
+			return false;
+		}
+		//That are all numbers
+		for(char ch : expirationYear){
+			if(!std::isdigit(ch)){
+				return false;
+			}
+		}
+		//The number must be 2020<= x <= 2030
+		int num = std::stoi(expirationYear);
+		if((num < 2020) || (num > 2030)){
+			return false;
+		}
+
+		//If none of the other conditions were hit return true;
+		return true;
+	}
+	bool heightIsValid(){
+		//It must be a number followed by 2 characters (in or cm)
+		//Split the string into digits and suffix
+		std::string numStr;
+		int num = 0;
+		std::string suffix;
+		int strLoc = 0;
+		for(;strLoc < height.size();++strLoc){
+			if(std::isdigit(height[strLoc])){
+				numStr += height[strLoc];
+			}
+			else{
+				break;
+			}
+		}
+		if(numStr.size() == 0){
+			return false;
+		}
+		num = std::stoi(numStr);
+		for(;strLoc < height.size();++strLoc){
+			if(std::isdigit(height[strLoc])){
+				return false;
+			}
+			else{
+				suffix += height[strLoc];
+			}
+		}
+
+		//If suffix is in 59 <= x <= 76
+		if(suffix == "in"){
+			if((num < 59) || (num > 76)){
+				return false;
+			}
+			else{
+				return true;
+			}
+		}
+		//If suffix is cm 150 <= x <= 193
+		else if(suffix == "cm"){
+			if((num < 150) || (num > 193)){
+				return false;
+			}
+			else{
+				return true;
+			}
+		}
+		else{
+			return false;
+		}
+
+		//If none of the other conditions were hit return true;
+		return true;
+	}
+	bool hairColorIsValid(){
+		//Contains 7 characters
+		if(hairColor.size() != 7){
+			return false;
+		}
+		//Start with #
+		if(hairColor[0] != '#'){
+			return false;
+		}
+		//Then 6 hex characters
+		for(int cnt = 1;cnt < hairColor.size();++cnt){
+			if(!std::isxdigit(hairColor[cnt])){
+				return false;
+			}
+		}
+
+		//If none of the other conditions were hit return true;
+		return true;
+	}
+	bool eyeColorIsValid(){
+		//amb or blu or brn or gry or grn or hzl or oth
+		if(eyeColor == "amb"){
+			return true;
+		}
+		else if(eyeColor == "blu"){
+			return true;
+		}
+		else if(eyeColor == "brn"){
+			return true;
+		}
+		else if(eyeColor == "gry"){
+			return true;
+		}
+		else if(eyeColor == "grn"){
+			return true;
+		}
+		else if(eyeColor == "hzl"){
+			return true;
+		}
+		else if(eyeColor == "oth"){
+			return true;
+		}
+		else{
+			return false;
+		}
+	}
+	bool passportIdIsValid(){
+		//Must be a 9-digit number
+		if(passportId.size() != 9){
+			return false;
+		}
+		for(char ch : passportId){
+			if(!std::isdigit(ch)){
+				return false;
+			}
+		}
+
+		//If none of the other conditions were hit return true;
+		return true;
+	}
+};
+
+
+std::vector<passport> importData(){
+	std::vector<passport> passports;
+	std::ifstream inputFile;
+	inputFile.open("inputs/Day4.txt");	//Open the file that has the input for the question
+
+	//Get the input one line at a time because a full blank line is the end of a passport
+	while(!inputFile.eof()){
+		passport currentPassport;
+		std::string currentLine;
+		std::getline(inputFile, currentLine);
+		while(currentLine != ""){
+			//Split the string on [space]
+			for(std::string str : mee::split(currentLine, ' ')){
+				//Split the string on :
+				std::vector<std::string> fields = mee::split(str, ':');
+				std::string field = fields[0];
+				std::string value = fields[1];
+
+				//Determine what field you are dealing with and save the data
+				if(field == "byr"){
+					currentPassport.birthYear = value;
+				}
+				else if(field == "iyr"){
+					currentPassport.issueYear = value;
+				}
+				else if(field == "eyr"){
+					currentPassport.expirationYear = value;
+				}
+				else if(field == "hgt"){
+					currentPassport.height = value;
+				}
+				else if(field == "hcl"){
+					currentPassport.hairColor = value;
+				}
+				else if(field == "ecl"){
+					currentPassport.eyeColor = value;
+				}
+				else if(field == "pid"){
+					currentPassport.passportId = value;
+				}
+				else if(field == "cid"){
+					currentPassport.countryId = value;
+				}
+				else{
+					std::cout << "ERROR!\n" << "field = " << field << "\tValue = " << value << std::endl;
+					exit(1);
+				}
+			}
+			std::getline(inputFile, currentLine);
+		}
+		passports.push_back(currentPassport);
+	}
+
+	return passports;
+}
+
+int main(){
+	mee::Stopwatch timer;
+	int validPassports = 0;
+
+	//Start the timer
+	timer.start();
+
+
+	//Get the passport data
+	std::vector<passport> passports = importData();
+
+	//Count how many are valid
+	for(passport pspt : passports){
+		if(pspt.isValid()){
+			++validPassports;
+		}
+	}
+
+
+	//Stop the timer
+	timer.stop();
+
+	//Print the results
+	std::cout << "There are " << validPassports << " valid passports"
+			<< "\nIt took " << timer.getStr() << " to finish this problem" << std::endl;
+
+	return 0;
+}
+
+/* Results:
+There are 175 valid passports
+It took 1.999 milliseconds to finish this problem
+*/