LeetCode 1052. Grumpy Bookstore Owner - Solving with TypeScript & JavaScript

The problem is essentially asking us to find the maximum sum of a subarray with length minutes. However, there's a twist: we need to add up all the customers when the owner is not grumpy, and then find the maximum number of additional customers that can be satisfied when the owner uses the secret technique.

Approach
We can solve this problem using a sliding window approach. The idea is to first calculate the total number of satisfied customers when the owner is not grumpy. Then, we calculate the maximum number of additional customers that can be satisfied when the owner uses the secret technique. The final result is the sum of these two numbers.

Here are the steps:

Initialize satisfactionWithGrumpy to the sum of customers in the first minutes minutes or when the owner is not grumpy.
Initialize maxSatisfaction to satisfactionWithGrumpy.
Iterate over the rest of the minutes. If the owner is grumpy at minute i, add the customers for that minute to satisfactionWithGrumpy. If the owner was grumpy minutes minutes ago, subtract the customers for that minute from satisfactionWithGrumpy.
Update maxSatisfaction if the current satisfaction is greater.
Return maxSatisfaction.

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