LeetCode 3296: Minimum Number of Seconds to Make Mountain Height Zero Solution

Master LeetCode problem 3296 (Minimum Number of Seconds to Make Mountain Height Zero), a medium 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.

3296. Minimum Number of Seconds to Make Mountain Height Zero

Medium

Array Math Binary Search Greedy Heap (Priority Queue)

Problem Explanation

Explanation:

To solve this problem, we need to simulate the reduction of the mountain's height by the workers. We iterate through each worker and calculate the time taken to reduce the height by each possible amount. We then find the maximum time taken by all workers to reduce the mountain's height to zero.

Initialize a variable totalSeconds to 0.
For each worker, calculate the time taken to reduce the mountain's height by each possible amount using the formula given in the problem.
Keep track of the maximum time taken by any worker to reduce the mountain's height to zero.
Return the maximum time taken as the minimum number of seconds required for the workers to make the height of the mountain zero.

Time Complexity: O(n), where n is the number of elements in the workerTimes array.

Space Complexity: O(1) as we are using constant extra space.

Solution Code

class Solution {
    public int minSeconds(int mountainHeight, int[] workerTimes) {
        int totalSeconds = 0;
        
        for (int time : workerTimes) {
            int currTime = 0;
            for (int x = 1; x <= mountainHeight; x++) {
                currTime += time * x;
                totalSeconds = Math.max(totalSeconds, currTime);
            }
        }
        
        return totalSeconds;
    }
}

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