Thread: Help with functions

This is part of my instructions and what i'm trying to code at the moment...

· To accelerate slowly, the user presses ‘a’. This will increase the speed by 3mph.
· To accelerate quickly, the user presses ‘A’. This will increase the speed by 10mph.

// I have not tried reading in the 10mph yet... just the 3mph...

Code:

#include <stdio.h> 
#include <math.h>




int increase(int z, int y)
{
    
  printf("|---------------------|\n");
  printf("|   %d                      |\n", total=total+num);
  printf("|                             |\n");
  printf("|                             |\n");
  printf("|---------------------|\n");
  return z=z+y;
  
  
}


int main(){


int i=0;
int num=3;
int total=0;
char number;


printf("\nEnter in an a to increase by 3 mph ,or a capital A to increase by 10mph!");
number=getch();






    while(i<1){
    switch (number)
    case 'A':
    case 'a': 
    int increase(total=total+num));
    break;
    i++;}
    
    
    
    getch();
    return(0);
}