#define WKS 10							// number of weeks to plan for
#define LAY_RATE 7						// eggs laid per week 
#define HATCH_RATE 4						// eggs hatched per week
#define CHK_PRICE .60						// amount earned by a chick
#define EGG_PRICE .10						// amount earned by an egg
#define HENS 100							// number of hens available 

2lp_main()
{
continuous Incub[WKS],EggsSold[WKS],Layers[WKS],Hatchers[WKS];

	and(int i=0;i<WKS;i++) {
		Hatchers[i] + Layers[i] == HENS;
		EggsSold[i] + Incub[i] == LAY_RATE*Layers[i];
	}

	Hatchers[0] == 0.0;
	and(int i=1;i<WKS;i++) 	
		HATCH_RATE*Hatchers[i] == Incub[i-1];

	Incub[WKS-1] == 0.0;

	max: sigma(int i=0;i<WKS;i++)
		(CHK_PRICE*Incub[i] + EGG_PRICE*EggsSold[i]); 

	and(int i=0;i<WKS;i++) {
		printf("In week %d: ",i);
		printf("Plan %.0f Hatchers ",floor(Hatchers[i]));
		printf("and %.0f Layers \n",ceil(Layers[i])); 
	}
}
 