House Robber II
Detailed guide and Python implementation for the 'House Robber II' problem.
Problem Statement
You are a professional robber planning to rob houses along a street. Each house has a certain amount of money stashed. All houses at this place are arranged in a circle. That means the first house is the neighbor of the last one. Meanwhile, adjacent houses have a security system connected, and it will automatically contact the police if two adjacent houses were broken into on the same night.
Given an integer array nums representing the amount of money of each house, return the maximum amount of money you can rob tonight without alerting the police.
Write a function rob(nums: List[int]) -> int.
- •1 <= len(nums) <= 100
- •0 <= nums[i] <= 1000
Examples
nums = [2,3,2]
3
You cannot rob house 1 and house 3 because they are adjacent in the circular layout.
nums = [1,2,3,1]
4
Rob house 1 (money = 1) and rob house 3 (money = 3). Total = 4.
Need a Hint?
Edge Cases to Watch
- Empty input structures
- Single element inputs
- Large numerical bounds
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