C++-POJ1067-取石子游戏

//(ak,bk)=([k*(1+sqrt(5))/2],[k*(1+sqrt(5))/2]+k)=(ak,ak+k)

#include <cstdio>
double sqrt5=2.2360679774997896964091736687313;
int main(){
    for(int a,b;scanf("%d%d",&a,&b)!=EOF;puts((((int)((b-a)*(1+sqrt5)/2)))==a?"0":"1"))
        a>b?a^=b,b^=a,a^=b:0;
    return 0;
}