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37 lines
1.8 KiB
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<p>There is a bookstore owner that has a store open for <code>n</code> minutes. Every minute, some number of customers enter the store. You are given an integer array <code>customers</code> of length <code>n</code> where <code>customers[i]</code> is the number of the customer that enters the store at the start of the <code>i<sup>th</sup></code> minute and all those customers leave after the end of that minute.</p>
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<p>On some minutes, the bookstore owner is grumpy. You are given a binary array grumpy where <code>grumpy[i]</code> is <code>1</code> if the bookstore owner is grumpy during the <code>i<sup>th</sup></code> minute, and is <code>0</code> otherwise.</p>
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<p>When the bookstore owner is grumpy, the customers of that minute are not satisfied, otherwise, they are satisfied.</p>
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<p>The bookstore owner knows a secret technique to keep themselves not grumpy for <code>minutes</code> consecutive minutes, but can only use it once.</p>
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<p>Return <em>the maximum number of customers that can be satisfied throughout the day</em>.</p>
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<p> </p>
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<p><strong>Example 1:</strong></p>
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<pre>
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<strong>Input:</strong> customers = [1,0,1,2,1,1,7,5], grumpy = [0,1,0,1,0,1,0,1], minutes = 3
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<strong>Output:</strong> 16
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<strong>Explanation:</strong> The bookstore owner keeps themselves not grumpy for the last 3 minutes.
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The maximum number of customers that can be satisfied = 1 + 1 + 1 + 1 + 7 + 5 = 16.
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</pre>
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<p><strong>Example 2:</strong></p>
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<pre>
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<strong>Input:</strong> customers = [1], grumpy = [0], minutes = 1
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<strong>Output:</strong> 1
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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>n == customers.length == grumpy.length</code></li>
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<li><code>1 <= minutes <= n <= 2 * 10<sup>4</sup></code></li>
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<li><code>0 <= customers[i] <= 1000</code></li>
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<li><code>grumpy[i]</code> is either <code>0</code> or <code>1</code>.</li>
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</ul>
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