Thread: do - while loop ignores getchar()

Hi,
my problem is pretty much summarized in the title, following code:

Code:

#include <stdio.h>
#include <stdlib.h>
#include <time.h>

int main ()
{
  char a;
  int DP;int x=1;int gcount = 0;int rolls = 0;int success = 0;
  
	do
	{
  /* initialize random generator */
	srand ( time(NULL) );
	printf("Bitte Dicepool eingeben\n");
	scanf("%d",&DP);
		while ( x<=DP)
		{
		int random = (rand() % 6)+1;
		printf ("Ergebniss: %d\n",random); 
		x++;
			if(random == 1)
				{gcount++;} 
			else if(random == 6||random == 5)
				{success++; 
				if(random == 6){x--;}}
		rolls++;
		}
	
	printf("\nErfolge:%d, 1en:%d",success,gcount);

	printf("\n Nochmal (j/n)? \n"); /*asks if the user wants to go again*/
	a = getchar();
	}while( a == 'j');
  return 0;
}

I'm trying to write a diceroller for shadowrun as a little exercise with C. Now i played around a bit, commenting out stuff and changing conditions, and it seems the program skips the "a=getchar();" line, it immediately stops after asking for another go. I use Geany as an IDE(compiler didn't show any errors) under Ubuntu 10, and when i tried executing the code in Terminal it did exactly the same thing it did when executed directly from Geany.
I hope this isn't too stupid a question,I'm pretty noobish with C.
Thanks for the time.

Thank you very much, I used a getchar(); directly after the scanf() to clear it and it is working now. Is this a feasible solution or should I use something else?