Untitled

void rlencode(FILE* in, FILE* out)
{
	char curr, prev;
	unsigned char counter;
	int flag;
	
	while((curr = fgetc(in))!=EOF)
	{
		if(curr != prev){
			if (flag){
				fputc(counter, out);
				counter=0;
			}
			flag=0;
			fputc(curr, out);
			prev = curr;
		}else{
			flag=1;
			counter++;
			if(counter<=1)
				fputc(curr, out);
		}
	}
}