View Code of Problem 13

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

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