mediumArraysPattern: Two Pointers
Circular Array Subset Sum Solution
Problem Statement
Given a circular array of integers `weights` and an integer `capacity`, find the maximum sum of a contiguous subarray within the circular array that does not exceed `capacity`. The array is considered circular, meaning the last element is connected to the first element.
Constraints
- 1 <= number of crates <= 10^5
- 1 <= weight of each crate <= 10^6
- 1 <= target storage capacity <= 10^7
Time: O(n) Space: O(1)
The optimal approach involves using two pointers to track the current window of crates, allowing for a time complexity of O(n). By moving the pointers based on the current total weight, we can efficiently find the maximum total weight of crates that can be stored.
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