mirror of
https://gitee.com/coder-xiaomo/leetcode-problemset
synced 2025-09-05 15:31:43 +08:00
72 lines
2.3 KiB
HTML
72 lines
2.3 KiB
HTML
<p>You are given an integer array <code>nums</code> and an integer <code>k</code>.</p>
|
||
|
||
<p>Your task is to determine whether it is possible to partition all elements of <code>nums</code> into one or more groups such that:</p>
|
||
|
||
<ul>
|
||
<li>Each group contains <strong>exactly</strong> <code>k</code> elements.</li>
|
||
<li>All elements in each group are <strong>distinct</strong>.</li>
|
||
<li>Each element in <code>nums</code> must be assigned to <strong>exactly</strong> one group.</li>
|
||
</ul>
|
||
|
||
<p>Return <code>true</code> if such a partition is possible, otherwise return <code>false</code>.</p>
|
||
|
||
<p> </p>
|
||
<p><strong class="example">Example 1:</strong></p>
|
||
|
||
<div class="example-block">
|
||
<p><strong>Input:</strong> <span class="example-io">nums = [1,2,3,4], k = 2</span></p>
|
||
|
||
<p><strong>Output:</strong> <span class="example-io">true</span></p>
|
||
|
||
<p><strong>Explanation:</strong></p>
|
||
|
||
<p>One possible partition is to have 2 groups:</p>
|
||
|
||
<ul>
|
||
<li>Group 1: <code>[1, 2]</code></li>
|
||
<li>Group 2: <code>[3, 4]</code></li>
|
||
</ul>
|
||
|
||
<p>Each group contains <code>k = 2</code> distinct elements, and all elements are used exactly once.</p>
|
||
</div>
|
||
|
||
<p><strong class="example">Example 2:</strong></p>
|
||
|
||
<div class="example-block">
|
||
<p><strong>Input:</strong> <span class="example-io">nums = [3,5,2,2], k = 2</span></p>
|
||
|
||
<p><strong>Output:</strong> <span class="example-io">true</span></p>
|
||
|
||
<p><strong>Explanation:</strong></p>
|
||
|
||
<p>One possible partition is to have 2 groups:</p>
|
||
|
||
<ul>
|
||
<li>Group 1: <code>[2, 3]</code></li>
|
||
<li>Group 2: <code>[2, 5]</code></li>
|
||
</ul>
|
||
|
||
<p>Each group contains <code>k = 2</code> distinct elements, and all elements are used exactly once.</p>
|
||
</div>
|
||
|
||
<p><strong class="example">Example 3:</strong></p>
|
||
|
||
<div class="example-block">
|
||
<p><strong>Input:</strong> <span class="example-io">nums = [1,5,2,3], k = 3</span></p>
|
||
|
||
<p><strong>Output:</strong> <span class="example-io">false</span></p>
|
||
|
||
<p><strong>Explanation:</strong></p>
|
||
|
||
<p>We cannot form groups of <code>k = 3</code> distinct elements using all values exactly once.</p>
|
||
</div>
|
||
|
||
<p> </p>
|
||
<p><strong>Constraints:</strong></p>
|
||
|
||
<ul>
|
||
<li><code>1 <= nums.length <= 10<sup>5</sup></code></li>
|
||
<li><code>1 <= nums[i] <= 10<sup>5</sup></code></li>
|
||
<li><code><sup></sup>1 <= k <= nums.length</code></li>
|
||
</ul>
|