{ "data": { "question": { "questionId": "2878", "questionFrontendId": "2772", "categoryTitle": "Algorithms", "boundTopicId": 2333660, "title": "Apply Operations to Make All Array Elements Equal to Zero", "titleSlug": "apply-operations-to-make-all-array-elements-equal-to-zero", "content": "

You are given a 0-indexed integer array nums and a positive integer k.

\n\n

You can apply the following operation on the array any number of times:

\n\n\n\n

Return true if you can make all the array elements equal to 0, or false otherwise.

\n\n

A subarray is a contiguous non-empty part of an array.

\n\n

 

\n

Example 1:

\n\n
\nInput: nums = [2,2,3,1,1,0], k = 3\nOutput: true\nExplanation: We can do the following operations:\n- Choose the subarray [2,2,3]. The resulting array will be nums = [1,1,2,1,1,0].\n- Choose the subarray [2,1,1]. The resulting array will be nums = [1,1,1,0,0,0].\n- Choose the subarray [1,1,1]. The resulting array will be nums = [0,0,0,0,0,0].\n
\n\n

Example 2:

\n\n
\nInput: nums = [1,3,1,1], k = 2\nOutput: false\nExplanation: It is not possible to make all the array elements equal to 0.\n
\n\n

 

\n

Constraints:

\n\n\n", "translatedTitle": "使数组中的所有元素都等于零", "translatedContent": "

给你一个下标从 0 开始的整数数组 nums 和一个正整数 k 。

\n\n

你可以对数组执行下述操作 任意次 ：

\n\n\n\n

如果你可以使数组中的所有元素都等于 0 ，返回  true ；否则，返回 false 。

\n\n

子数组 是数组中的一个非空连续元素序列。

\n\n

 

\n\n

示例 1：

\n\n
输入：nums = [2,2,3,1,1,0], k = 3\n输出：true\n解释：可以执行下述操作：\n- 选出子数组 [2,2,3] ，执行操作后，数组变为 nums = [1,1,2,1,1,0] 。\n- 选出子数组 [2,1,1] ，执行操作后，数组变为 nums = [1,1,1,0,0,0] 。\n- 选出子数组 [1,1,1] ，执行操作后，数组变为 nums = [0,0,0,0,0,0] 。\n
\n\n

示例 2：

\n\n
输入：nums = [1,3,1,1], k = 2\n输出：false\n解释：无法使数组中的所有元素等于 0 。\n
\n\n

 

\n\n

提示：

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