{ "data": { "question": { "questionId": "2094", "questionFrontendId": "1962", "categoryTitle": "Algorithms", "boundTopicId": 914940, "title": "Remove Stones to Minimize the Total", "titleSlug": "remove-stones-to-minimize-the-total", "content": "

You are given a 0-indexed integer array piles, where piles[i] represents the number of stones in the ith pile, and an integer k. You should apply the following operation exactly k times:

\n\n\n\n

Notice that you can apply the operation on the same pile more than once.

\n\n

Return the minimum possible total number of stones remaining after applying the k operations.

\n\n

floor(x) is the greatest integer that is smaller than or equal to x (i.e., rounds x down).

\n\n

 

\n

Example 1:

\n\n
\nInput: piles = [5,4,9], k = 2\nOutput: 12\nExplanation: Steps of a possible scenario are:\n- Apply the operation on pile 2. The resulting piles are [5,4,5].\n- Apply the operation on pile 0. The resulting piles are [3,4,5].\nThe total number of stones in [3,4,5] is 12.\n
\n\n

Example 2:

\n\n
\nInput: piles = [4,3,6,7], k = 3\nOutput: 12\nExplanation: Steps of a possible scenario are:\n- Apply the operation on pile 2. The resulting piles are [4,3,3,7].\n- Apply the operation on pile 3. The resulting piles are [4,3,3,4].\n- Apply the operation on pile 0. The resulting piles are [2,3,3,4].\nThe total number of stones in [2,3,3,4] is 12.\n
\n\n

 

\n

Constraints:

\n\n\n", "translatedTitle": "移除石子使总数最小", "translatedContent": "

给你一个整数数组 piles ，数组 下标从 0 开始 ，其中 piles[i] 表示第 i 堆石子中的石子数量。另给你一个整数 k ，请你执行下述操作 恰好 k 次：

\n\n\n\n

注意：你可以对 同一堆 石子多次执行此操作。

\n\n

返回执行 k 次操作后，剩下石子的 最小 总数。

\n\n

floor(x) 为 小于 或 等于 x 的 最大 整数。（即，对 x 向下取整）。

\n\n

 

\n\n

示例 1：

\n\n
\n输入：piles = [5,4,9], k = 2\n输出：12\n解释：可能的执行情景如下：\n- 对第 2 堆石子执行移除操作，石子分布情况变成 [5,4,5] 。\n- 对第 0 堆石子执行移除操作，石子分布情况变成 [3,4,5] 。\n剩下石子的总数为 12 。\n
\n\n

示例 2：

\n\n
\n输入：piles = [4,3,6,7], k = 3\n输出：12\n解释：可能的执行情景如下：\n- 对第 2 堆石子执行移除操作，石子分布情况变成 [4,3,3,7] 。\n- 对第 3 堆石子执行移除操作，石子分布情况变成 [4,3,3,4] 。\n- 对第 0 堆石子执行移除操作，石子分布情况变成 [2,3,3,4] 。\n剩下石子的总数为 12 。\n
\n\n

 

\n\n

提示：

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