Question

Hello. I want to write a function in C program to track calories for specified fitness activities i.e. run, walk, bike etc. I am trying to make an array with the activities and return calories burned per minute for each workout. The function will keep running until user tells it to stop. "maybe 'while' loop (Y/N)" or something like that. The main function will call the activity function and a few printf/scanf. My code looks pretty bad so if you could at least get me started, that would help a lot. Thanks!

Answer 1

thanks for the question. Based on the question, here is a C program that you can adopt.

Comments are given inline, we are considering only running, walking and driving

Running consumes 12 calroeis/min

Walking consumes 10 calroeis/min

Driving consumes 8 calroeis/min

========================================================================================

#include<stdio.h>

// calculate the total calrories burnt for each acitivity and sum them up

// returns the tototal claories burnt

double calculateCaloriesBurnt(double *calories, int *mins, int size){

               

                double caloriesBurnt=0.0;

                int i=0;

                for(;i<size;i++){

                                caloriesBurnt+= *(calories+i)* (*(mins+i));

                }

                return caloriesBurnt;

               

}

int main(){

               

                // assuming 12 calories burnt by running in 1 min

                // assuming 10 calories burnt by walking in 1 min

                // assuming 8 calories burnt by biking in 1 min

                double calories_per_min[]={12,10,8};

                // this array will stores the total mins spent, initially all set to 0

                // for 3 activities we have a size of 3

                int mins[3]={0,0,0};

                while(1){

                                int minutes;

                                printf("Enter the number of mins you have run(whole number): ");

                                scanf("%d",&minutes);

                                mins[0]=mins[0]+minutes;

                                printf("Enter the number of mins you have walked(whole number): ");

                                scanf("%d",&minutes);

                                mins[1]=mins[1]+minutes;

                                printf("Enter the number of mins you have drived(whole number): ");

                                scanf("%d",&minutes);

                                mins[2]=mins[2]+minutes;

                               

                                char c='y';

                                printf("\nDo you want to add more (y/n): ");

                                scanf(" %c",&c);

                                if(c=='n')break;

                }

               

                double caloriesBurnt = calculateCaloriesBurnt(calories_per_min,mins,3);

                printf("\nTotal mins you have run    : %d",mins[0]);

                printf("\nTotal mins you have walked : %d",mins[1]);

                printf("\nTotal mins you have drived : %d",mins[2]);

                printf("\nTotal calories burnt       : %.2lf",caloriesBurnt);

               

}

========================================================================================

thanks, let me know in case you need to change the code.