LeetCode 2891: Method Chaining Solution
Master LeetCode problem 2891 (Method Chaining), a easy 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.
2891. Method Chaining
Problem Explanation
Explanation:
To solve this problem, we can use method chaining in Python Pandas to filter the DataFrame based on the weight condition and then sort the resulting DataFrame by weight in descending order. Method chaining allows us to perform multiple operations on a DataFrame in a single line of code without creating temporary variables or breaking up the operations.
- Filter the DataFrame to include only animals with weight strictly more than 100 kilograms.
- Sort the filtered DataFrame by weight in descending order.
- Extract the names of the animals from the sorted DataFrame.
Time complexity: O(n log n) - sorting the DataFrame based on weight
Space complexity: O(n) - space used for the resulting sorted DataFrame
:
Solution Code
// Java solution
// Not applicable as the problem can't be directly solved using method chaining in Java without a library like Pandas in PythonTry It Yourself
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