Thread: Division using repeated subtraction

Okay so I am suppose to write a program that divides two numbers without using the operator "/"
So i try writing the program using repeated subtraction, but I dont know if I am doing this right at all.

Heres my code

Code:

#include <stdio.h>

int main()
{
        int a, b, max, min, results, count;
        max = 2000000000;
        min = -2000000000;
        results = 0;
        count = 0;

        printf("Enter integer numbers 'a' and 'b' for division a/b: ");
        scanf("%d %d", &a, &b);

        if (b == 0) {
                printf("Division by zero is not allowed!");
        		printf("\n");
        		return 0;
        }		
        while (1) {
                results = a - b;
                count++;
                if (b < a)
                        break;
        }
        printf("Division result is %d\n", count);
        return 0;

okay so i fixed it up but for some reason its not printing.
please help,

Code:

#include <stdio.h>

int main()
{
        int a, b, max, min, results, count;
        max = 2000000000;
        min = -2000000000;
        results = 0;
        count = 0;

        printf("Enter integer numbers 'a' and 'b' for division a/b: ");
        scanf("%d %d", &a, &b);

        if (b == 0) {
                printf("Division by zero is not allowed!");
        		printf("\n");
        		return 0;
        }		
        while (1) {
                results = a - b;
                count++;
                if (result == 0) {
                        count++;
                        break;
                }
        }
        printf("Division result is %d\n", count);
        return 0;

Code:

        while (1) {
                results = a - b;
                count++;
                if (result == 0) {
                        count++;
                        break;
                }
        }

You are setting results to "a - b" in each iteration, and a and b are never changed.

It's not printing because your program is stuck in an infinite loop.

ok check out this code.. i made it for you i hope it helps...

Code:

#include <stdio.h>
#include <stdlib.h>
int main()
{

    int a;
    int b;
    int i;
    char cha[10];
    char chb[10];
    printf("Enter number: ");
    gets(cha);
    a = atoi(cha);
    printf("Enter divider: ");
    gets(chb);
    b= atoi(chb);
    printf("\n\n%d/%d is %d and the remainder is %d\n\n",a,b,a/b,a%b);
    while(a>=b){
        i = a - b;
        printf("%d - %d = %d\n",a,b,i);
        a=i;
    }

    return 0;
}

cheers... tropche.

anyways, this is not a problem only for him, it might be useful to someone else who is trying to acomplish the same thing... so i think i did right to bring a possible solution to this problem... at least have some respect for me as a new member....

thank you