View Code of Problem 13

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

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

	return 0;
}