#include <fstream>
#include <string>
#include <iomanip>
#include <iostream>
 
using namespace std;
 
int cal_Fitness_Level(int age[], char sex[], int wTime[]);
void sortData(string lName[], string fName[], int age[], char sex[], int wTime[], int noOfRows);
 
int main ()
{
	// step 1
	string lName[15];
	string fName[15];
	int age[15], wTime[15], i = 0, num = 0;
	int level[15];
	char sex[15];
	ifstream inFile; // input stream variable for data file
	ofstream outFile; // output stream variable for result data
 
	inFile.open("data.txt");
 
	if (!inFile) // step 3
	{
		cout << "Cannot open the input file." << endl;
		return 1;
	}
 
	outFile.open("results.txt");// step 4
 
	outFile << setfill(' ') << left << setw(15) << "Last Name" //header for output file
		<< setfill(' ') << left << setw(22) << "First Name" 
		<< setfill(' ') << left << setw(7) << "Age" 
		<< setfill(' ') << left << setw(7) << "Gender" 
		<< setfill(' ') << left << setw(10) << "Walk Time" 
		<< setfill(' ') << left << setw(13) << "Fitness Level" << endl;
 
	while (!inFile.eof())
	{
		inFile >> fName[i] >> lName[i] >> age[i] >> sex[i] >> wTime[i]; // step 5
		level[i] = cal_Fitness_Level(age, sex, wTime);// step 6
		i++;
		num++;
	}
 
	sortData(lName, fName, age, sex, wTime, i);// step 7
 
	for (i = 0; i < 9; i++)// step 8
	{
		outFile << setfill(' ') << left << setw(15) << lName[i] 
		<< setfill(' ') << left << setw(22) << fName[i] 
		<< setfill(' ') << left << setw(9) << age[i] 
		<< setfill(' ') << left << setw(7) << sex[i] 
		<< setfill(' ') << left << setw(11) << wTime[i] 
		<< setfill(' ') << left << setw(7) << level << endl;
	}
 
	outFile << '\n' << "Number of records: " << num << endl;
 
	return 0;
}
 
int cal_Fitness_Level(int age[], char sex[], int wTime[])
{
	int i = 0, fL;
 
	if (age[i] >= 13 && age[i] <= 19)
	{
		if (wTime[i] >= 48)
			fL = 1;
		else if (wTime[i] > 43 && wTime[i] <= 47)
			fL = 2;
		else if (wTime[i] > 39 && wTime[i] <= 43)
			fL = 3;
		else if (wTime[i] > 35 && wTime[i] <= 39)
			fL = 4;
		else if (wTime[i] < 35)
			fL = 5;
	}
	else
		fL = 0;
 
	return fL;
}
 
 
void sortData(string lName[], string fName[], int age[], char sex[], int wTime[], int noOfRows)
{
	int i, j;
	int min;
 
	// selection sort
	for (i = 0; i < noOfRows - 1; i++)
	{
		// step a
		min = i;
 
		for (j = i + 1; j < noOfRows; j++)
			if (lName[j] < lName[min])
				min = j;
 
		if(min!=i)// step b
		lName[i].swap(lName[min]);
		fName[i].swap(fName[min]);
		age[i] = age[min];
		sex[i] = sex[min];
		wTime[i] = wTime[min];
	}
}

level[i] = cal_Fitness_Level(age[i], sex[i], wTime[i]);

int cal_fitness_level(int age, int sex, int wTime);

level[i] = cal_fitness_level(age[i], sex[i], wTime[i]);