Problem Description
Write a solution to list the names of animals that weigh strictly more than 100 kilograms. Return the animals sorted by weight in descending order.
Key Insights
- The task requires filtering a DataFrame based on weight.
- Method chaining allows for compact and readable code to perform multiple operations in one line.
- The final output needs to be sorted in descending order.
Space and Time Complexity
Time Complexity: O(n log n) - due to the sorting operation. Space Complexity: O(n) - for storing the filtered results.
Solution
The solution involves filtering the DataFrame to include only those animals whose weight is greater than 100 kg. Following the filtering, the results are sorted by weight in descending order. Finally, we select only the name column for the output. The data structure used here is a DataFrame, which allows for easy manipulation of tabular data.