[프로그래머스] 최솟값 만들기

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;
    }
}