{ "data": { "question": { "questionId": "3894", "questionFrontendId": "3572", "categoryTitle": "Algorithms", "boundTopicId": 3694350, "title": "Maximize Y‑Sum by Picking a Triplet of Distinct X‑Values", "titleSlug": "maximize-ysum-by-picking-a-triplet-of-distinct-xvalues", "content": "

You are given two integer arrays x and y, each of length n. You must choose three distinct indices i, j, and k such that:

\n\n\n\n

Your goal is to maximize the value of y[i] + y[j] + y[k] under these conditions. Return the maximum possible sum that can be obtained by choosing such a triplet of indices.

\n\n

If no such triplet exists, return -1.

\n\n

 

\n

Example 1:

\n\n
\n

Input: x = [1,2,1,3,2], y = [5,3,4,6,2]

\n\n

Output: 14

\n\n

Explanation:

\n\n\n
\n\n

Example 2:

\n\n
\n

Input: x = [1,2,1,2], y = [4,5,6,7]

\n\n

Output: -1

\n\n

Explanation:

\n\n\n
\n\n

 

\n

Constraints:

\n\n\n", "translatedTitle": "选择不同 X 值三元组使 Y 值之和最大", "translatedContent": "

给你两个整数数组 x 和 y，长度均为 n。你必须选择三个 不同 的下标 i ，j 和 k，满足以下条件：

\n\n\n\n

你的目标是在满足这些条件下 最大化 y[i] + y[j] + y[k] 的值。返回通过选择这样一组三元组下标所能获得的 最大 可能和。

\n\n

如果不存在这样的三元组，返回 -1。

\n\n

 

\n\n

示例 1：

\n\n
\n

输入：x = [1,2,1,3,2], y = [5,3,4,6,2]

\n\n

输出：14

\n\n

解释：

\n\n\n
\n\n

示例 2：

\n\n
\n

输入：x = [1,2,1,2], y = [4,5,6,7]

\n\n

输出：-1

\n\n

解释：

\n\n\n
\n\n

 

\n\n

提示：

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