2116.cpp

杭电 acm部分代码 有兴趣的可以下载 谢谢

#include<stdio.h>
#include<math.h>
void main()
{
    __int64 k,a,b,big,t1,t2;
    while(scanf("%I64d",&k)!=EOF){
        scanf("%I64d%I64d",&a,&b);
        if(a>b)
            {t1=a;a=b;b=t1;}
        if(a<=0&&b>=0){
            printf("WaHaHa\n");
            continue;
        }
        else if(a>0&&b>0){
            big=pow(2,k-2);
            if(b<big)
                printf("WaHaHa\n");
            else if(a>=big)
                printf("Yes\n");
            else{
                t1=big-a;
                t2=b-big;
                if(t2-t1>-1)
                    printf("Yes\n");
                else
                    printf("WaHaHa\n");
            }
        }
        else if(a<0&&b<0){
            big=-1*pow(2,k-2);
            if(a>=big)
                printf("WaHaHa\n");
            else if(b<big)
                printf("Yes\n");
            else{
                t1=big-a;
                t2=b-big;
                if(t1-t2>0)
                    printf("Yes\n");
                else
                    printf("WaHaHa\n");
            }
        }
    }
}