View Code of Problem 13

#include <stdio.h>
#include <stdlib.h>

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