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45 lines
2.1 KiB
HTML
45 lines
2.1 KiB
HTML
<p>An array is considered <strong>special</strong> if every pair of its adjacent elements contains two numbers with different parity.</p>
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<p>You are given an array of integer <code>nums</code> and a 2D integer matrix <code>queries</code>, where for <code>queries[i] = [from<sub>i</sub>, to<sub>i</sub>]</code> your task is to check that <span data-keyword="subarray">subarray</span> <code>nums[from<sub>i</sub>..to<sub>i</sub>]</code> is <strong>special</strong> or not.</p>
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<p>Return an array of booleans <code>answer</code> such that <code>answer[i]</code> is <code>true</code> if <code>nums[from<sub>i</sub>..to<sub>i</sub>]</code> is special.<!-- notionvc: e5d6f4e2-d20a-4fbd-9c7f-22fbe52ef730 --></p>
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<p> </p>
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<p><strong class="example">Example 1:</strong></p>
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<div class="example-block">
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<p><strong>Input:</strong> <span class="example-io">nums = [3,4,1,2,6], queries = [[0,4]]</span></p>
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<p><strong>Output:</strong> <span class="example-io">[false]</span></p>
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<p><strong>Explanation:</strong></p>
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<p>The subarray is <code>[3,4,1,2,6]</code>. 2 and 6 are both even.</p>
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</div>
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<p><strong class="example">Example 2:</strong></p>
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<div class="example-block">
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<p><strong>Input:</strong> <span class="example-io">nums = [4,3,1,6], queries = [[0,2],[2,3]]</span></p>
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<p><strong>Output:</strong> <span class="example-io">[false,true]</span></p>
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<p><strong>Explanation:</strong></p>
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<ol>
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<li>The subarray is <code>[4,3,1]</code>. 3 and 1 are both odd. So the answer to this query is <code>false</code>.</li>
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<li>The subarray is <code>[1,6]</code>. There is only one pair: <code>(1,6)</code> and it contains numbers with different parity. So the answer to this query is <code>true</code>.</li>
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</ol>
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</div>
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<p> </p>
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<p><strong>Constraints:</strong></p>
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<ul>
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<li><code>1 <= nums.length <= 10<sup>5</sup></code></li>
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<li><code>1 <= nums[i] <= 10<sup>5</sup></code></li>
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<li><code>1 <= queries.length <= 10<sup>5</sup></code></li>
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<li><code>queries[i].length == 2</code></li>
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<li><code>0 <= queries[i][0] <= queries[i][1] <= nums.length - 1</code></li>
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</ul>
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