View Code of Problem 13

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