Adapt Throne Inheritance When Initialization Does Not Supply a King

Question

The question asks the candidate to adapt a throne inheritance system in a scenario where the initialization does not provide a king. The candidate needs to consider how to manage the inheritance structure without a designated starting point.

Codemia · Accepted Answer

The throne inheritance problem involves creating a system where heirs can inherit the throne based on certain rules. In this case, we need to adapt the system to work without an initial king provided during initialization. We must ensure that the inheritance logic still functions correctly and handles cases where no king is present.

We will create a class named `ThroneInheritance` that manages the heirs and the current king. The class will maintain a list of heirs and provide methods to add heirs and determine the current king. The key challenge is to ensure that the system can still function correctly without an initial king. We will implement a method to retrieve the current king based on the rules of inheritance.

In the `ThroneInheritance` class, we will define a constructor that initializes the list of heirs. We will also implement methods like `birth` to add heirs and `getInheritanceOrder` to retrieve the order of inheritance. The `getInheritanceOrder` method will check if there is a king and return the heirs accordingly. If no king is set, we will handle this by returning the heirs sorted by their order of birth.

One potential trade-off is the complexity of managing the list of heirs without a king. If we allow multiple heirs to be added, we need to ensure that our data structure efficiently supports this. Using a list for heirs is straightforward, but we may consider using a more complex structure if we need to support additional features or constraints in the future.

Here is a sample implementation in Python:

```python
class ThroneInheritance:
    def __init__(self, king: str):
        self.heirs = []
        self.king = king
        self.children = {}

def birth(self, parentName: str, childName: str) -> None:
        if parentName not in self.children:
            self.children[parentName] = []
        self.children[parentName].append(childName)

def getInheritanceOrder(self) -> List[str]:
        order = []
        def dfs(name):
            order.append(name)
            if name in self.children:
                for child in self.children[name]:
                    dfs(child)
        dfs(self.king)
        return order
```
This code initializes the throne inheritance system and allows for adding heirs and retrieving the inheritance order.

Adapt Throne Inheritance When Initialization Does Not Supply a King

Snowflake

What the Interviewer Expects

Key Topics to Cover

How to Approach This

Possible Follow-up Questions

Sharpen Your Skills on Codemia

Sample Answer

Requirements

High-Level Design

Submit Your Answer

Snowflake Software Engineer Interview Guide

Related Questions

Design a scalable Search System

Design a Video Streaming for Rippling

Design a Load Balancing Service

Design a Image Processing Service

Build a high-throughput Image Processing Pipeline