View Code of Problem 67

#include <stdio.h>
int main()
{
	float a[2][4],x;
	int	i,j;
	int *p;
	while(scanf("%f",&x)!=EOF)
	{
		p=a;
		a[0][0]=x;
		for(i=1;i<8;i++)
		{
			scanf("%f",p+i);
		}
		if(((a[0][3]-a[0][1])/(a[0][2]-a[0][0]))==((a[1][3]-a[1][1])/(a[1][2]-a[1][0])))
			printf("No\n");
		else printf("Yes\n");
	}
	return 0;
}

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