[Programmers] 나누어 떨어지는 숫자 배열

vector<int> solution(vector<int> arr, int divisor) {
    vector<int> answer;
    
    sort(arr.begin(), arr.end());
    
    for(int i=0; i<arr.size(); i++){
        if(arr[i] % divisor == 0)
            answer.push_back(arr[i]);
    }
    
    if(answer.size() == 0)
        answer.push_back(-1);
    
    return answer;
}