[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 - i - 1]);
        }
        
        return answer;
    }
}