Thread: Got stuck --> need help

hi guys i have a program about counting items and adding their prices and checking if the item is Towel i should start counting coz the costumer must only buy 3 towels.
i got program right but the total always doubled ):
can u help
here's the code

thanx in advance

Code:

#include <stdio.h>
#include <string.h>
	char item[20];
	int  towelnum;
	float subtotal, price;
int main() {
	towelnum = 0.0;
	printf("Enter item then price\n");
	printf("Enter XXX to stop\n");
	subtotal = 0;
	while(true){
		gets(item);
		if (strcmp(item,"XXX")==0){
			break;
			}
		if (strcmp(item,"Towel")== 0 ){
			towelnum++;
		}
		scanf("%f", &price);
		subtotal = subtotal + price;
		if(towelnum > 3){
			printf("You exceeded\n");

			towelnum--;
			subtotal = subtotal - price;

		}
		
	}
	printf("Subtotal: $%1.2f\n", subtotal);
	if(towelnum == 3){
		printf("Total: $%1.2f", subtotal - 5);
	}
	else{
		printf("Total: $%1.2f", subtotal);
	}
}

I'm not that familiar with gets() because it's hella unsafe, but - I believe the scanf() line of code inside the while() loop, is leaving the newline char behind in the keyboard buffer (OK, I know that's true). Which makes gets() accept the item again. (not positive of that, though and haven't run your code.)

The test would be to add a getchar() right after the scanf() to pull the newline char off the keyboard buffer.

Try that.

ya, it's true.
i tried your code, used flushall() before gets() and don't forget to hit enter after writing "Towel" and then it's cost.
"Towel" and "XXX" should be used with proper cases...

getchar(); < solved the problem

thanx a lot for both of u