easySliding WindowPattern: Sliding Window
Maximum Resource Lifetime Solution
Problem Statement
Given a list of daily demands and a supply capacity of 27 units, determine the maximum number of days to meet the residents' oxygen needs within a 7-day window.
Examples
Example 1:
Input:[5, 6, 3, 4, 7, 8, 9, 1, 2]
Output:7
Explanation: The system can meet the residents' needs for the first 7 days by allocating oxygen from the tanks.
Example 2:
Input:[27, 27, 27, 27, 27, 27, 27, 1]
Output:7
Explanation: The system can meet the residents' needs for the first 7 days by allocating oxygen from the tanks, then it runs out of oxygen.
Constraints
- The array of calorie densities can be empty.
- The subarray length, k, is always greater than 0.
Time: O(n) Space: O(1)
The optimized approach uses a sliding window with a queue data structure to track the maximum demand in O(n) time complexity.
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