Dailies 3

#include "stdafx.h"
#include <iostream>
#include <string>
#include <cstdlib>
#include <ctime>
#include <fstream>
using namespace std;

int main()
{

    float weight;
    float height;
    cout << "In pounds, how much do you weigh?" << endl;
    cin >> weight;
    cout << "In inches, how tall are you?" << endl;
    cin >> height;
    float bmi = (weight * .45) / pow((height * .025), 2);
    cout << "BMI: " << bmi << endl;

    if (bmi >= 40) { cout << "Category: Obese Class III (very severely obese)" << endl; }
    else if (bmi >= 35) { cout << "Category: Obese Class II (severely obese)" << endl; }
    else if (bmi >= 30) { cout << "Category: Obese Class I (moderately obese)" << endl; }
    else if (bmi >= 25) { cout << "Category: Overweight" << endl; }
    else if (bmi >= 18.5) { cout << "Category: Normal (healthy weight)" << endl; }
    else if (bmi >= 16) { cout << "Category: Underweight" << endl; }
    else if (bmi >= 15) { cout << "Category: Severely Underweight" << endl; }
    else { cout << "Category: Very Severely Underweight" << endl; };
    cout << "---------- End of Daily 1 ----------\n\n\n";


    string eightQ;
    string repeatQ;
    string response1 = "It is certain";
    string response2 = "It is decidedly so";
    string response3 = "Reply hasy try again";
    string response4 = "Ask again later";
    string response5 = "Don't count on it";
    string response6 = "Very doubtful";
    do
    {
        srand(time(NULL));
        int randomNumber = rand() % 6 + 1;

        cout << "What would you like to know? Please ask the Magic 8-Ball a yes or no question." << endl;
        cin >> eightQ;
        switch (randomNumber)
        {
        case 1: cout << response1 << endl;
            break;
        case 2:    cout << response2 << endl;
            break;
        case 3:    cout << response3 << endl;
            break;
        case 4:    cout << response4 << endl;
            break;
        case 5:    cout << response5 << endl;
            break;
        case 6: cout << response6 << endl;
            break;
        }
        cout << "Do you wish to play again?";
        cin >> repeatQ;

    } while (repeatQ != "quit");
    cout << "---------- End of Daily 2 ----------\n\n\n";


    float loanAmount;
    int loanTerm;
    float annualRate;

    cout << "What is your loan amount?" << endl;
    cin >> loanAmount;
    cout << "What is your annual interest rate? (.##)" << endl;
    cin >> annualRate;
    cout << "What is your loan term in months?" << endl;
    cin >> loanTerm;
    float monthlyPayment = ((annualRate / 12) * loanAmount * pow((1 + (annualRate / 12)), loanTerm)) / (pow((1 + (annualRate / 12)), loanTerm) - 1);
    cout << "Monthly Payment Amount: " << monthlyPayment << endl;

    for (size_t i = 0; i < loanTerm; i++)
    {

        float interest = (annualRate / 12) * loanAmount;
        float principal = monthlyPayment - interest;
        float balance = loanAmount - principal;

        cout << "Principal #: " << i + 1 << " " << principal << " Interest: " << interest << " Balance: " << balance << endl;
        loanAmount = balance;
    };
    cout << "---------- End of Daily 3 ----------\n\n\n";



    string playagain;
    int guess;
    do
    {
        srand(time(NULL));
        int randomN100 = rand() % 100 + 1;
        cout << "I'm thinking of a number between 1 and 100...\n\n";

        do
        {
            cout << "Guess: ";
            cin >> guess;

            if (guess > randomN100) cout << "Your guess is too high.\n";
            if (guess < randomN100) cout << "Your guess is too low.\n";

        } while (guess != randomN100);

        cout << "Your guess is correct!\n\n";
        cout << "Do you wish to play again? ";
        cin >> playagain;

    } while (playagain != "quit");
    cout << "---------- End of Daily 4 ----------\n\n\n";


    ifstream rainSheet;
    float dailyRain;
    float totalRain = 0;
    rainSheet.open("C:\\Users\\cis.LABS\\Downloads\\rainfall.txt", ios::in);
    rainSheet >> dailyRain;
    int i = 0;
    while (!rainSheet.eof() && dailyRain != -999)
    {
        if ( dailyRain >= 0)
        {
            i++;
            totalRain +=dailyRain;
        }

        rainSheet >> dailyRain;
    }
    cout << "Average rain over " << i << " days is: " << totalRain / i << endl;
    cout << "---------- End of Daily 5 ----------\n\n\n";



    system("pause");
    return 0;
}