{ "data": { "question": { "questionId": "3429", "questionFrontendId": "3151", "categoryTitle": "Algorithms", "boundTopicId": 2781008, "title": "Special Array I", "titleSlug": "special-array-i", "content": "
An array is considered special if the parity of every pair of adjacent elements is different. In other words, one element in each pair must be even, and the other must be odd.
\n\nYou are given an array of integers nums
. Return true
if nums
is a special array, otherwise, return false
.
\n
Example 1:
\n\nInput: nums = [1]
\n\nOutput: true
\n\nExplanation:
\n\nThere is only one element. So the answer is true
.
Example 2:
\n\nInput: nums = [2,1,4]
\n\nOutput: true
\n\nExplanation:
\n\nThere is only two pairs: (2,1)
and (1,4)
, and both of them contain numbers with different parity. So the answer is true
.
Example 3:
\n\nInput: nums = [4,3,1,6]
\n\nOutput: false
\n\nExplanation:
\n\nnums[1]
and nums[2]
are both odd. So the answer is false
.
\n
Constraints:
\n\n1 <= nums.length <= 100
1 <= nums[i] <= 100
如果数组的每一对相邻元素都是两个奇偶性不同的数字,则该数组被认为是一个 特殊数组。换句话说,每一对中的元素 必须 有一个是偶数,另一个是奇数。
\n\n你有一个整数数组 nums
。如果 nums
是一个 特殊数组 ,返回 true
,否则返回 false
。
\n\n
示例 1:
\n\n输入:nums = [1]
\n\n输出:true
\n\n解释:
\n\n只有一个元素,所以答案为 true
。
示例 2:
\n\n输入:nums = [2,1,4]
\n\n输出:true
\n\n解释:
\n\n只有两对相邻元素: (2,1)
和 (1,4)
,它们都包含了奇偶性不同的数字,因此答案为 true
。
示例 3:
\n\n输入:nums = [4,3,1,6]
\n\n输出:false
\n\n解释:
\n\nnums[1]
和 nums[2]
都是奇数。因此答案为 false
。
\n\n
提示:
\n\n1 <= nums.length <= 100
1 <= nums[i] <= 100
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