View Code of Problem 13

#include <stdio.h>
int main()
{
	int h,a,b,k;
	int bf,i,j=1;
	while(scanf("%d %d %d %d",&h,&a,&b,&k)!=EOF)
	{
		printf("Case#%d:",j);
		bf=1;j++;
		for(i=0;i<k&&bf;i++)
		{
			h=h-a;	
			if(h<1) bf=0;
			else h+=b;
			
		}
		if(!bf) printf("White win\n");
		else printf("Unknow\n");
	}
	return 0;
}