Question

Need help with these, especially number 4. C++ program

L. WIite the function Write a function mpgcalculator that accepts pointers to three arrays. The firstis an array of miles, the second is an array of gallons, the third will hold mile-per-gallon. It has no return value. 4. a. b. c. d. write the prototype call this function with these three arrays: miles, gallons, mpg. write the function use only array notation 5. Do #4, using only array with offset notation. Do #4, using only incremented pointer notation. Write a function countdown that contains a static variable count that is used to display a countdown. 6- 7. Initialize the variable to 10. It has no return value. Write a function spaceout that accepts a pointer to an array of characters, and sets every element in the array to a space character. Use only incremented pointers. (no array, no offset) t has no return value. Write a function findspace that accepts a pointer to an array of characters, and returns true if it finds a 8. 9. space, false if not. 10. Write a function replacespac e that accepts a pointer to an array of characters. It will replace every space with a dash . It has no return value.

Answer 1

#include <iostream>

using namespace std;

void mpgcalulator (double*, double*, double*);
#ifndef SIZE
#define SIZE 5
#endif
int main(int argc, char const *argv[])
{
   double miles[SIZE], gallons[SIZE], mpg[SIZE];

   for (int i = 0; i < SIZE; i++) {
       cout << (i+1) << "." << endl;
       cout << "miles coverd: ";
       cin >> miles[i];
       cout << "gallons consumed: ";
       cin >> gallons[i];
   }

   mpgcalulator(miles, gallons, mpg);

   for (int i = 0; i < SIZE; i++) {
       cout << (i+1) << "." << endl;
       cout << "miles coverd: ";
       cout << miles[i] << endl;
       cout << "gallons consumed: ";
       cout << gallons[i] << endl;
       cout << "mpg calcualted: ";
       cout << mpg[i] << endl;
   }  

   return 0;
}

void mpgcalulator (double *miles, double *gallons, double *mpg) {
   for (int i = 0; i < SIZE; i++)
       mpg[i] = miles[i]/gallons[i];
}

/*******************************************************************************************

NOTE

COMPILATION:
1
     g++ <file name>
     default size of arrays are 5

2
     g++ -D SIZE=10 <file name>
   size of array would be 10

PROTOTYPE:
      g++ -D SIZE=<required array size> <file name>

*****************************************************************************************/