{ "data": { "question": { "questionId": "2067", "questionFrontendId": "1937", "categoryTitle": "Algorithms", "boundTopicId": 876607, "title": "Maximum Number of Points with Cost", "titleSlug": "maximum-number-of-points-with-cost", "content": "

You are given an m x n integer matrix points (0-indexed). Starting with 0 points, you want to maximize the number of points you can get from the matrix.

\n\n

To gain points, you must pick one cell in each row. Picking the cell at coordinates (r, c) will add points[r][c] to your score.

\n\n

However, you will lose points if you pick a cell too far from the cell that you picked in the previous row. For every two adjacent rows r and r + 1 (where 0 <= r < m - 1), picking cells at coordinates (r, c1) and (r + 1, c2) will subtract abs(c1 - c2) from your score.

\n\n

Return the maximum number of points you can achieve.

\n\n

abs(x) is defined as:

\n\n\n\n

 

\n

Example 1:

\n\"\"\n
\nInput: points = [[1,2,3],[1,5,1],[3,1,1]]\nOutput: 9\nExplanation:\nThe blue cells denote the optimal cells to pick, which have coordinates (0, 2), (1, 1), and (2, 0).\nYou add 3 + 5 + 3 = 11 to your score.\nHowever, you must subtract abs(2 - 1) + abs(1 - 0) = 2 from your score.\nYour final score is 11 - 2 = 9.\n
\n\n

Example 2:

\n\"\"\n
\nInput: points = [[1,5],[2,3],[4,2]]\nOutput: 11\nExplanation:\nThe blue cells denote the optimal cells to pick, which have coordinates (0, 1), (1, 1), and (2, 0).\nYou add 5 + 3 + 4 = 12 to your score.\nHowever, you must subtract abs(1 - 1) + abs(1 - 0) = 1 from your score.\nYour final score is 12 - 1 = 11.\n
\n\n

 

\n

Constraints:

\n\n\n", "translatedTitle": "扣分后的最大得分", "translatedContent": "

给你一个 m x n 的整数矩阵 points (下标从 0 开始)。一开始你的得分为 0 ,你想最大化从矩阵中得到的分数。

\n\n

你的得分方式为:每一行 中选取一个格子,选中坐标为 (r, c) 的格子会给你的总得分 增加 points[r][c] 。

\n\n

然而,相邻行之间被选中的格子如果隔得太远,你会失去一些得分。对于相邻行 r 和 r + 1 (其中 0 <= r < m - 1),选中坐标为 (r, c1) 和 (r + 1, c2) 的格子,你的总得分 减少 abs(c1 - c2) 。

\n\n

请你返回你能得到的 最大 得分。

\n\n

abs(x) 定义为:

\n\n\n\n

 

\n\n

示例 1:

\n\"\"\n
\n输入:points = [[1,2,3],[1,5,1],[3,1,1]]\n输出:9\n解释:\n蓝色格子是最优方案选中的格子,坐标分别为 (0, 2),(1, 1) 和 (2, 0) 。\n你的总得分增加 3 + 5 + 3 = 11 。\n但是你的总得分需要扣除 abs(2 - 1) + abs(1 - 0) = 2 。\n你的最终得分为 11 - 2 = 9 。\n
\n\n

示例 2:

\n\"\"\n
\n输入:points = [[1,5],[2,3],[4,2]]\n输出:11\n解释:\n蓝色格子是最优方案选中的格子,坐标分别为 (0, 1),(1, 1) 和 (2, 0) 。\n你的总得分增加 5 + 3 + 4 = 12 。\n但是你的总得分需要扣除 abs(1 - 1) + abs(1 - 0) = 1 。\n你的最终得分为 12 - 1 = 11 。\n
\n\n

 

\n\n

提示:

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