LeetCode 3279: Maximum Total Area Occupied by Pistons Solution

Master LeetCode problem 3279 (Maximum Total Area Occupied by Pistons), a hard challenge, with our optimized solutions in Java, C++, and Python. Explore detailed explanations, test your code in our interactive editor, and prepare for coding interviews.

3279. Maximum Total Area Occupied by Pistons

Hard

Array Hash Table String Simulation Counting Prefix Sum

Problem Explanation

Explanation:

To solve this problem, we can iterate through each piston and calculate the total area occupied by each possible pair of pistons. We will keep track of the maximum total area found so far and return it as the result.

Here are the steps:

Sort the array of pistons in non-decreasing order.
Initialize a variable maxArea to keep track of the maximum total area found so far.
Iterate through each pair of pistons, calculating the total area occupied by that pair.
Update maxArea if the total area for the current pair is greater than the current maxArea.
Return the maxArea as the result.

Time Complexity: O(n^2) where n is the number of pistons.
Space Complexity: O(1)

Solution Code

class Solution {
    public int maxTotalAreaOccupiedByPistons(int[] pistons) {
        Arrays.sort(pistons);
        int maxArea = 0;
        
        for (int i = 0; i < pistons.length; i++) {
            for (int j = i + 1; j < pistons.length; j++) {
                int area = Math.min(pistons[i], pistons[j]) * (j - i + 1);
                maxArea = Math.max(maxArea, area);
            }
        }
        
        return maxArea;
    }
}

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