mirror of
https://gitee.com/coder-xiaomo/leetcode-problemset
synced 2025-01-10 18:48:13 +08:00
38 lines
1.7 KiB
HTML
38 lines
1.7 KiB
HTML
<p>You are given a <strong>0-indexed</strong> integer array <code>nums</code>. You have to partition the array into one or more <strong>contiguous</strong> subarrays.</p>
|
|
|
|
<p>We call a partition of the array <strong>valid</strong> if each of the obtained subarrays satisfies <strong>one</strong> of the following conditions:</p>
|
|
|
|
<ol>
|
|
<li>The subarray consists of <strong>exactly</strong> <code>2</code> equal elements. For example, the subarray <code>[2,2]</code> is good.</li>
|
|
<li>The subarray consists of <strong>exactly</strong> <code>3</code> equal elements. For example, the subarray <code>[4,4,4]</code> is good.</li>
|
|
<li>The subarray consists of <strong>exactly</strong> <code>3</code> consecutive increasing elements, that is, the difference between adjacent elements is <code>1</code>. For example, the subarray <code>[3,4,5]</code> is good, but the subarray <code>[1,3,5]</code> is not.</li>
|
|
</ol>
|
|
|
|
<p>Return <code>true</code><em> if the array has <strong>at least</strong> one valid partition</em>. Otherwise, return <code>false</code>.</p>
|
|
|
|
<p> </p>
|
|
<p><strong>Example 1:</strong></p>
|
|
|
|
<pre>
|
|
<strong>Input:</strong> nums = [4,4,4,5,6]
|
|
<strong>Output:</strong> true
|
|
<strong>Explanation:</strong> The array can be partitioned into the subarrays [4,4] and [4,5,6].
|
|
This partition is valid, so we return true.
|
|
</pre>
|
|
|
|
<p><strong>Example 2:</strong></p>
|
|
|
|
<pre>
|
|
<strong>Input:</strong> nums = [1,1,1,2]
|
|
<strong>Output:</strong> false
|
|
<strong>Explanation:</strong> There is no valid partition for this array.
|
|
</pre>
|
|
|
|
<p> </p>
|
|
<p><strong>Constraints:</strong></p>
|
|
|
|
<ul>
|
|
<li><code>2 <= nums.length <= 10<sup>5</sup></code></li>
|
|
<li><code>1 <= nums[i] <= 10<sup>6</sup></code></li>
|
|
</ul>
|