Submission #552818

#	Time	Username	Problem	Language	Result	Execution time	Memory
552818		Aldas25	Question (Grader is different from the original contest) (CEOI14_question_grader)	C++14	0 / 100	0 ms	492 KiB

encoder

#define FOR(i, a, b) for (int i = (a); i <= (b); i++)

int firstBit (int x) {
    FOR(i, 0, 15)
        if (x & (1<<i))
            return i;

    return -1;
}

int encode (int n, int x, int y) {
  //int x, y;
    //    cin >> x >> y;
        int b = firstBit(x ^ y);
        //f (b == -1) exit(1);
        int code = b<<1;
        if (x & (1<<b)) code++;
    //    cout << code << "\n";
    return code;
}

decoder

int decode (int n, int q, int h) {
	//int q, h;
      //  cin >> q >> h;
        //if (h > 20) exit(1);
        bool one = false;
        if (h&1) one = true;
        h >>= 1;
        bool has = false;
        if (q & (1<<h)) has = true;
        //if (has == one) cout << "yes\n";
        //ese cout << "no\n";

        if (has==one) return 1;
        else return 0;
}

• Subtask 1: 0 / 100