minimum-consecutive-cards-to-pick-up

Minimum Consecutive Cards to Pick Up

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minimumCardPickup

You are given an integer array <code>cards</code> where <code>cards[i]</code> represents the value of the <code>ith</code> card. A pair of cards are matching if the cards have the same value.

Return the minimum number of consecutive cards you have to pick up to have a pair of matching cards among the picked cards. If it is impossible to have matching cards, return <code>-1</code>.

&nbsp;
Example 1:

<pre>
Input: cards = [3,4,2,3,4,7]
Output: 4
Explanation: 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>

Example 2:

<pre>
Input: cards = [1,0,5,3]
Output: -1
Explanation: There is no way to pick up a set of consecutive cards that contain a pair of matching cards.
</pre>

&nbsp;
Constraints:

<ul>
	<li><code>1 &lt;= cards.length &lt;= 105</code></li>
	<li><code>0 &lt;= cards[i] &lt;= 106</code></li>
</ul>

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