Question

Write a basic C++ program that will calculate a subject’s basal metabolic rate and estimate how many days it will take to lose a specific number of pounds. The program will perform the following tasks:

1. Declare variables and Named constants.
2. Display “Welcome to <your name>’s Weight Loss Calculator”
3. Prompt the user to enter the subject’s current weight.
4. Prompt the user to enter the subject’s height in feet plus inches.
5. Prompt the user to enter the subject’s age.
6. Prompt the user to enter the subject’s sex. (hint use type char to store M or F)
7. Prompt the user to enter the subject’s Activity Level (1.2-1.9) Sedentary-Extremely Active
8. Prompt for the daily calorie reduction the subject is willing to sustain at current activity level: (hint use a variable named calReduc)
9. Prompt for the subject’s target weight
10. Prompt the user to enter the subject’s first name.
11. Calculate the subject’s height in inches (height= feet *12+ inches)
12. If the subject is Female – calculate basal metabolic rate: bmr= 655.0955 + (4.35 * weight ) + (4.7 * height) - (4.6756 * age).
13. Use Named Constants for the Factors 655.0955, 4.35, 4.7, and 4.6756.
14. Else for males – calculate bmr= 66.473 + (6.237621 * weight) + (12.70838 * height) - (6.755 * age).
15. Use Named Constants for the Factors 66.473, 6.237621, 12.70838 , and 6.755
16. Calculate the adjusted bmradj=bmr*actLevel.
17. Calculate the required daily caloric intake: dailyCals=bmradj-calReduc;
18. Calculate weight to lose: wtToLose=weight-targetWt.
19. Calculate days to target weight; daysToTarget = 3500*wtToLose/calReduc
20. Clear the console screen: (hint use system(“cls”);)
21. Display to the monitor the report heading
22. Display the subject’s bmr, adjusted bmr, caloric reduction, required caloric intake, weight to lose, days to reach target as shown in the report layout below.
23. Thank the user for using the calculator.
24. Calculate and display the number of days needed to reach a (Body Mass Index) BMI of 23.

Answer 1

bmiCal.cpp

//

// main.cpp

// bmiCalculator

//

// for Chegg on 18/02/20.

#include <iostream>

using namespace std;

const double oneM = 66.473;

const double twoM = 6.237621;

const double threeM = 12.70838;

const double fourM = 6.755;

const double oneF = 655.0955;

const double twoF = 4.35;

const double threeF = 4.7;

const double fourF = 4.6756;

int main(int argc, const char * argv[]) {

  

system("clear"); // Replace clear with cls for your system, mine was MAC - Xcode

  

float weight;

int inch, feet, height;

int age;

char sex;

char activityLevel;

int calReduc;

float targetWt, wtToLose, daysToTarget;

  

double bmr;

double bmradj;

double dailyCals;

  

string name;

  

cout << "Enter Your Weight\n";

cin >> weight;

cout << "Enter Your Height : Feet-\n";

cin >> feet;

cout << "Enter Your Height : Inch-\n";

cin >> inch;

cout << "Enter Your Age\n";

cin >> age;

cout << "Enter Your Sex, M - Male | F - Female\n";

cin >> sex;

cout << "Enter Your Activity Level, S - Sedentary | E - Extremely Active\n";

cin >> activityLevel;

cout << "Enter Your Calorie Reduction\n";

cin >> calReduc;

cout << "Enter Your Targeted Weight\n";

cin >> targetWt;

cout << "Enter Your Name\n";

cin >> name;

  

height = (feet * 12) + inch;

  

// BMR

if(sex=='M'){

bmr= oneM + (twoM * weight) + (threeM * height) - (fourM * age);

cout << bmr;

}

else if(sex=='F'){

bmr= oneF + (twoF * weight ) + (threeF * height) - (fourF * age);

cout << bmr;

}

  

// Adjusted BMR

if(activityLevel=='S'){

bmradj = bmr * 1.2;

cout << "\n\nAdjusted BMR is:\n";

cout << bmradj;

}

else if(activityLevel=='E'){

bmradj = bmr * 1.9;

cout << "\n\nAdjusted BMR is:\n";

cout << bmradj;

}

  

dailyCals = bmradj - calReduc;

cout << "\n\nRequired Calorie Intake:\n";

cout << dailyCals;

  

wtToLose = weight - targetWt;

cout << "\n\nWeight To Lose:\n";

cout << wtToLose;

  

daysToTarget = 3500 * wtToLose / calReduc;

cout << "\n\nDays To Target Weight:\n";

cout << daysToTarget;

cout << "\n";

return 0;

}

Screenshot of the output

Please let me know in the comments if any additions are needed.

Please rate.