> #include<iostream>
> using namespace std;
> 
> void comp(unsigned long a,unsigned long b,unsigned long& max,unsigned long &min)//判断大小，并装入max,min 
> {if(a<b){min=a;max=b;}
>  if(a>b){max=a;min=b;}
>  if(a==b){max=a;min=b;}
> }
> 
> 
> bool judge(unsigned long &max,unsigned long &min)              //判断能否胜出 
> {if(min==1&&max==2)return 0;
>  if(min==0||min==1||min==2)return 1;
>  if(max==(2*min-1))return 0;
>  return 1;
> }
> 
> int main()
> {
>     unsigned long a,b;
>     unsigned long max,min;
>     for(;;)
>            {cin>>a>>b;
>             if(a>1000000000||b>1000000000)break;
>             comp(a,b,max,min);
>             if(judge(max,min)==1) cout<<"1"<<endl;
>             if(judge(max,min)==0) cout<<"0"<<endl;
>            }
> }

上面的算法就有问题，
可以找几组简单的必败的数据试一下，比如
3，5
> 4，7
> 6，10
> 8，13