mirror of
https://gitee.com/coder-xiaomo/leetcode-problemset
synced 2025-01-10 18:48:13 +08:00
29 lines
1.3 KiB
HTML
29 lines
1.3 KiB
HTML
<p>You are given an integer array <code>cards</code> where <code>cards[i]</code> represents the <strong>value</strong> of the <code>i<sup>th</sup></code> card. A pair of cards are <strong>matching</strong> if the cards have the <strong>same</strong> value.</p>
|
|
|
|
<p>Return<em> the <strong>minimum</strong> number of <strong>consecutive</strong> cards you have to pick up to have a pair of <strong>matching</strong> cards among the picked cards.</em> If it is impossible to have matching cards, return <code>-1</code>.</p>
|
|
|
|
<p> </p>
|
|
<p><strong class="example">Example 1:</strong></p>
|
|
|
|
<pre>
|
|
<strong>Input:</strong> cards = [3,4,2,3,4,7]
|
|
<strong>Output:</strong> 4
|
|
<strong>Explanation:</strong> We can pick up the cards [3,4,2,3] which contain a matching pair of cards with value 3. Note that picking up the cards [4,2,3,4] is also optimal.
|
|
</pre>
|
|
|
|
<p><strong class="example">Example 2:</strong></p>
|
|
|
|
<pre>
|
|
<strong>Input:</strong> cards = [1,0,5,3]
|
|
<strong>Output:</strong> -1
|
|
<strong>Explanation:</strong> There is no way to pick up a set of consecutive cards that contain a pair of matching cards.
|
|
</pre>
|
|
|
|
<p> </p>
|
|
<p><strong>Constraints:</strong></p>
|
|
|
|
<ul>
|
|
<li><code>1 <= cards.length <= 10<sup>5</sup></code></li>
|
|
<li><code>0 <= cards[i] <= 10<sup>6</sup></code></li>
|
|
</ul>
|