题解 | #三个数的最大乘积#

import java.util.*;


public class Solution {
    /**
     * 代码中的类名、方法名、参数名已经指定，请勿修改，直接返回方法规定的值即可
     *
     * 最大乘积
     * @param A int整型一维数组
     * @return long长整型
     */
    public long solve (int[] A) {
        // write code here
        Arrays.sort(A);
        return Math.max((long)A[0] * (long)A[1] * (long)A[A.length - 1],
                        (long)A[A.length - 3] * (long)A[A.length - 2] * (long)A[A.length - 1]);
    }
}