{ "data": { "question": { "questionId": "2503", "questionFrontendId": "2419", "categoryTitle": "Algorithms", "boundTopicId": 1838840, "title": "Longest Subarray With Maximum Bitwise AND", "titleSlug": "longest-subarray-with-maximum-bitwise-and", "content": "

You are given an integer array nums of size n.

\n\n

Consider a non-empty subarray from nums that has the maximum possible bitwise AND.

\n\n\n\n

Return the length of the longest such subarray.

\n\n

The bitwise AND of an array is the bitwise AND of all the numbers in it.

\n\n

A subarray is a contiguous sequence of elements within an array.

\n\n

 

\n

Example 1:

\n\n
\nInput: nums = [1,2,3,3,2,2]\nOutput: 2\nExplanation:\nThe maximum possible bitwise AND of a subarray is 3.\nThe longest subarray with that value is [3,3], so we return 2.\n
\n\n

Example 2:

\n\n
\nInput: nums = [1,2,3,4]\nOutput: 1\nExplanation:\nThe maximum possible bitwise AND of a subarray is 4.\nThe longest subarray with that value is [4], so we return 1.\n
\n\n

 

\n

Constraints:

\n\n\n", "translatedTitle": "按位与最大的最长子数组", "translatedContent": "

给你一个长度为 n 的整数数组 nums

\n\n

考虑 nums 中进行 按位与(bitwise AND)运算得到的值 最大非空 子数组。

\n\n\n\n

返回满足要求的 最长 子数组的长度。

\n\n

数组的按位与就是对数组中的所有数字进行按位与运算。

\n\n

子数组 是数组中的一个连续元素序列。

\n\n

 

\n\n

示例 1:

\n\n
\n输入:nums = [1,2,3,3,2,2]\n输出:2\n解释:\n子数组按位与运算的最大值是 3 。\n能得到此结果的最长子数组是 [3,3],所以返回 2 。\n
\n\n

示例 2:

\n\n
\n输入:nums = [1,2,3,4]\n输出:1\n解释:\n子数组按位与运算的最大值是 4 。 \n能得到此结果的最长子数组是 [4],所以返回 1 。\n
\n\n

 

\n\n

提示:

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