Thread: Number guessing.

Hi Folks

I have the following number guessing code. Using averages I want to narrow down the numbers but can't figure out how to narrow the window each time the loop runs.

Any help would be appreciated!

Code:

#include <stdio.h>
int main(void)
{
    int start = 50;
    int min = 1;
    int max = 100;
    long int hg = (start + max) / 2;    //high guess
    long int lg = (start + min) / 2;    //low guess
      
    printf("Pick an integer from 1 to 100. I will try to guess ");
    printf("it.\nRespond with a Y if my guess is right, an H if it's higher or \n");
    printf("an L if it's lower.\n");
    printf("\n");
    printf("Is your number 50?: ");
     
    while (getchar() != 'y')      /* get response, compare to y */
   
       {
           
        if (getchar() == 'n');
        printf("Is it higher or lower?: ");
       {         
        if (getchar() == 'h')
        printf("Is it %ld?: ", hg);
        
        else if (getchar() == 'l');
        printf("Is it %ld?: ", lg);
        }        
        printf("\nend of loop\n");
                     
        }
        
        printf("I knew I could do it!\n");

  fflush(stdin);
	printf("\nPress Enter to continue.");
	getchar();
    return 0;
}