C++ 静态数组解题：判断点是否可达（PowerOfThreeEasy）

#include using namespace std;

bool isPowerOfThree(int n) { if (n <= 0) { return false; } while (n % 3 == 0) { n /= 3; } return n == 1; }

int main() { int x, y; cin >> x >> y; if (isPowerOfThree(x + y)) { cout << "Possible" << endl; } else { cout << "Impossible" << endl; } return 0; }