LeetCode 2137: Pour Water Between Buckets to Make Water Levels Equal Solution

Master LeetCode problem 2137 (Pour Water Between Buckets to Make Water Levels Equal), 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.

2137. Pour Water Between Buckets to Make Water Levels Equal

Medium

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Problem Explanation

Explanation:

To solve this problem, we simulate the pouring process step by step. We iterate through each bucket and simulate pouring water either to the left or right based on the given rules. We repeat this process V times, where V is the volume of water to be poured.

Algorithm:

Iterate V times to simulate pouring water.
For each iteration, iterate through each bucket and simulate pouring water either left or right based on the rules.
After pouring water, check if the water levels are equal to the target level.
Repeat the process for all iterations.

Time Complexity:

The time complexity of this algorithm is O(V*N), where N is the number of buckets and V is the volume of water to be poured.

Space Complexity:

The space complexity of this algorithm is O(N), where N is the number of buckets.

Solution Code

class Solution {
    public int[] pourWater(int[] heights, int V, int K) {
        for (int i = 0; i < V; i++) {
            pour(heights, K);
        }
        return heights;
    }

    private void pour(int[] heights, int K) {
        int left = K;
        while (left > 0 && heights[left] >= heights[left - 1]) {
            left--;
        }
        while (left < K && heights[left] == heights[left + 1]) {
            left++;
        }
        
        if (left != K) {
            heights[left]++;
            return;
        }
        
        int right = K;
        while (right < heights.length - 1 && heights[right] >= heights[right + 1]) {
            right++;
        }
        while (right > K && heights[right] == heights[right - 1]) {
            right--;
        }
        
        heights[right]++;
    }
}

Try It Yourself

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Frequently Asked Questions

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What is the time complexity of LeetCode 2137 (Pour Water Between Buckets to Make Water Levels Equal)?

The time complexity for LeetCode 2137 (Pour Water Between Buckets to Make Water Levels Equal) varies by solution. Check the detailed explanation section for specific complexities in Java, C++, and Python implementations.

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