struct node {
    int idx;
    int mood;
    int passed_nodes;

    node() {}
    node(int _idx, int _mood, int _passed_nodes) {
        idx = _idx;
        mood = _mood;
        passed_nodes = _passed_nodes;
    }

    bool operator < (const node &tmp) const {
        int score1 = 0, score2 = 0;
        if(mood > tmp.mood) {
            score1++;
        }
        else {
            score2++;
        }

        if(passed_nodes < tmp.passed_nodes) {
            score1++;
        }
        else {
            score2++;
        }
        return score1 < score2;
    }
};