for(int i = 0; i < r; i++) {
        for(int j = 0; j < 2 * n; j += 2) {
            if(players[j].strength > players[j + 1].strength) {
                players[j].score++;
                winner[j / 2] = players[j];
                loser[j / 2] = players[j + 1];
            }
            else {
                players[j + 1].score++;
                winner[j / 2] = players[j + 1];
                loser[j / 2] = players[j];
            }
            if(winner[j / 2].score == loser[j / 2].score && winner[j / 2].num < loser[j / 2].num) {
                players[j] = winner[j / 2];
                players[j + 1] = loser[j / 2];
            }
            else if(winner[j / 2].score > loser[j / 2].score) {
                players[j] = winner[j / 2];
                players[j + 1] = loser[j / 2];
            }
            else {
                players[j] = loser[j / 2];
                players[j + 1] = winner[j / 2];
            }
        }
    }