POJ 1067

#include <iostream>#include"cmath"using namespace std;const double gold = (sqrt(5.0) + 1)/ 2;                              int main(){    int a;    int b;        while (cin >> a >> b)    {        if (a > b)        {            swap(a,b);        }        double k = b - a;        int bk = k * gold + k;        if (bk == b)        {                        cout << 0 << endl;        }        else            cout << 1 << endl;    }    return 0;}