WOJ-Problem 1004 - Noah's Ark

不知为何，总是输出：Output Limit Exceeded

#include
#include
#include 
#include 
#define threshod 1e-9
using namespace std;


double change(double num, string c)
{
	double k = 1.0;
	if (c=="meters")k = 100.0;
	if (c=="cubits")k = 45.72;
	if (c=="feet")  k = 30.48;
	if (c=="inches")k = 2.54;
	num = num*k;
	return num;
}

int main()
{
	int i = 0;
	string output[10000];
	double length=0, width=0, height=0;
	//char dlength[20], dwidth[20], dheight[20];
	string dlength, dwidth, dheight;
	while (1)
	{
		i++;
		cin >> length >> dlength;
		cin >> width >> dwidth;
		cin >> height >> dheight;
		printf("\n");
		length=change(length,dlength);
		width=change(width,dwidth);
		if (fabs(length - width) < threshod)  printf("Spin");
		else
		{
			if (fabs((length - 6 * width))