The following equations estimate the calories burned when exercising (source): men: calories = ( (age x 0.2017) — (weight x 0.09036) + (heart rate x 0.6309) — 55.0969 ) x time / 4.184women: calories = ( (age x 0.074) — (weight x 0.05741) + (heart rate x 0.4472) — 20.4022 ) x time / 4.184write a program using inputs age (years), weight (pounds), heart rate (beats per minute), and time (minutes), respectively. output calories burned for men and women. output each floating-point value with two digits after the decimal point, which can be achieved as follows: printf("%0.2lf", yourvalue); ex: if the input is:

// program in C.

#include <stdio.h>

// function to calculate calories burned

double calories_burned(int age,double weight,double heart_rate,int i_time, char gen)

{

   // variable

   double calories=0;

   if(gen=='m')

   // calories burned by men

    calories = ((age * 0.2017 )- (weight * 0.09036) + (heart_rate * 0.6309) - 55.0969) * (i_time / 4.184);

   else if(gen=='f')

   // calories burned by Women

   calories = ((age * 0.074) - (weight * 0.05741) + (heart_rate * 0.4472) - 20.4022) * (i_time / 4.184);

   // return calories burned

   return calories;

}

// main function

int main()

{

   // variables

   int u_age;

   double u_weight,heart_rate;

   int i_time;

   printf("Enter age (years):");

   // read age

   scanf("%d",&u_age);

   printf("Enter weight (pounds):");

   // read weight

   scanf("%lf",&u_weight);

   printf("Enter heart rate (beats per minute):");

   // read heart_rate

   scanf("%lf",&heart_rate);

   printf("Enter time (minutes):");

   // read time

   scanf("%d",&i_time);

   // call function for men

   double men_cal=calories_burned(u_age,u_weight,heart_rate,i_time,'m');

   // call function for women

   double women_cal=calories_burned(u_age,u_weight,heart_rate,i_time,'f');

   // print calories burned by men

   printf("Men calories burned :%0.2lf \n", men_cal);

   // print calories burned by Women

   printf("Women calories burned :%0.2lf \n", women_cal);

   return 0;

}

Explanation:

Read age, weight, heart rate and time from user.Then call the function calories_burned() with all the input and a character parameter for men.This function will calculate the total calories burned by the men.Similarly call the function again for women, Then it will return the calories burned by women.Print the calories burned by men and women.

Output:

Enter age (years):20                                                                                                      

Enter weight (pounds):175                                                                                                  

Enter heart rate (beats per minute):144                                                                                    

Enter time (minutes):60                                                                                                    

Men calories burned :343.79                                                                                                

Women calories burned :508.05

the today function returns a valid value without any arguments.

the today function returns the current date based on the computer's date setting and formatted as a date. today takes no parameters, but requires that you use empty parentheses