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29 lines
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29 lines
1.9 KiB
HTML
<p>There is an integer array <code>nums</code> sorted in non-decreasing order (not necessarily with <strong>distinct</strong> values).</p>
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<p>Before being passed to your function, <code>nums</code> is <strong>rotated</strong> at an unknown pivot index <code>k</code> (<code>0 <= k < nums.length</code>) such that the resulting array is <code>[nums[k], nums[k+1], ..., nums[n-1], nums[0], nums[1], ..., nums[k-1]]</code> (<strong>0-indexed</strong>). For example, <code>[0,1,2,4,4,4,5,6,6,7]</code> might be rotated at pivot index <code>5</code> and become <code>[4,5,6,6,7,0,1,2,4,4]</code>.</p>
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<p>Given the array <code>nums</code> <strong>after</strong> the rotation and an integer <code>target</code>, return <code>true</code><em> if </em><code>target</code><em> is in </em><code>nums</code><em>, or </em><code>false</code><em> if it is not in </em><code>nums</code><em>.</em></p>
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<p>You must decrease the overall operation steps as much as possible.</p>
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<p> </p>
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<p><strong>Example 1:</strong></p>
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<pre><strong>Input:</strong> nums = [2,5,6,0,0,1,2], target = 0
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<strong>Output:</strong> true
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</pre><p><strong>Example 2:</strong></p>
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<pre><strong>Input:</strong> nums = [2,5,6,0,0,1,2], target = 3
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<strong>Output:</strong> false
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</pre>
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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 <= 5000</code></li>
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<li><code>-10<sup>4</sup> <= nums[i] <= 10<sup>4</sup></code></li>
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<li><code>nums</code> is guaranteed to be rotated at some pivot.</li>
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<li><code>-10<sup>4</sup> <= target <= 10<sup>4</sup></code></li>
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</ul>
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<p> </p>
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<p><strong>Follow up:</strong> This problem is similar to <a href="/problems/search-in-rotated-sorted-array/description/" target="_blank">Search in Rotated Sorted Array</a>, but <code>nums</code> may contain <strong>duplicates</strong>. Would this affect the runtime complexity? How and why?</p>
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