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52 lines
2.5 KiB
HTML
52 lines
2.5 KiB
HTML
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<p>Given an array <code>nums</code> of <code>n</code> integers, your task is to find the <strong>maximum</strong> value of <code>k</code> for which there exist <strong>two</strong> adjacent <span data-keyword="subarray-nonempty">subarrays</span> of length <code>k</code> each, such that both subarrays are <strong>strictly</strong> <strong>increasing</strong>. Specifically, check if there are <strong>two</strong> subarrays of length <code>k</code> starting at indices <code>a</code> and <code>b</code> (<code>a < b</code>), where:</p>
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<ul>
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<li>Both subarrays <code>nums[a..a + k - 1]</code> and <code>nums[b..b + k - 1]</code> are <strong>strictly increasing</strong>.</li>
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<li>The subarrays must be <strong>adjacent</strong>, meaning <code>b = a + k</code>.</li>
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</ul>
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<p>Return the <strong>maximum</strong> <em>possible</em> value of <code>k</code>.</p>
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<p>A <strong>subarray</strong> is a contiguous <b>non-empty</b> sequence of elements within an array.</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 = [2,5,7,8,9,2,3,4,3,1]</span></p>
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<p><strong>Output:</strong> <span class="example-io">3</span></p>
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<p><strong>Explanation:</strong></p>
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<ul>
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<li>The subarray starting at index 2 is <code>[7, 8, 9]</code>, which is strictly increasing.</li>
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<li>The subarray starting at index 5 is <code>[2, 3, 4]</code>, which is also strictly increasing.</li>
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<li>These two subarrays are adjacent, and 3 is the <strong>maximum</strong> possible value of <code>k</code> for which two such adjacent strictly increasing subarrays exist.</li>
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</ul>
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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 = [1,2,3,4,4,4,4,5,6,7]</span></p>
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<p><strong>Output:</strong> <span class="example-io">2</span></p>
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<p><strong>Explanation:</strong></p>
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<ul>
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<li>The subarray starting at index 0 is <code>[1, 2]</code>, which is strictly increasing.</li>
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<li>The subarray starting at index 2 is <code>[3, 4]</code>, which is also strictly increasing.</li>
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<li>These two subarrays are adjacent, and 2 is the <strong>maximum</strong> possible value of <code>k</code> for which two such adjacent strictly increasing subarrays exist.</li>
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</ul>
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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>2 <= nums.length <= 2 * 10<sup>5</sup></code></li>
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<li><code>-10<sup>9</sup> <= nums[i] <= 10<sup>9</sup></code></li>
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</ul>
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