프로그래머스-최솟값만들기

import java.util.*;

class Solution{
    public int solution(int []A, int []B){
        int answer = 0;
        Arrays.sort(A);
        Arrays.sort(B);
        for(int i=0; i<A.length; i++){
            answer+=A[i]*B[B.length-1-i];
        }
        return answer;
    }
}