Wayfair L2 Interview Experience

Screening Round

Questions:

1. Question 1: List the anagrams in a given list of input strings for each string in the query list.

   • Input:

     ["abc", "cba", "def"]

   • Query:

     ["bca", "fde"]

   • Output:

     [["abc","cba"],["def"]]

2. Question 2: Move through a maze problem where each move from a source (0,0) can happen in all four directions (i+x,j), (i-x,j), (i,j-x), (i,j+x) where x is a jump parameter if there are no obstacles in the way. We have to find the minimum moves required to reach the destination.

Round 1: Machine Coding Round

Questions: Question: Given a Package and Cargo classes implementing Ipackage and Ishipping methods respectively. The following methods need to be implemented in the Cargo class:

• addPackage(Ipackage pack)
• removePackage(int: id)
• int calculatetotalShippingCost()
• Map<String,Integer> packageList()
• Map<String, List<Integer>> categoryList()

Total cost can be found using the following formula:

• For each package in the package list:
  • lwh = length * weight * height
  • Cost for that package:
    • lwh <= 100000 : cost = 10
    • 100000 < lwh <= 50000: cost = 20
    • lwh > 50000: cost = 30
• Total cost = sum of calculated cost of all packages in the package list.

Category can be determined based on the weight of the product:

• weight < 5 => small
• 5 <= weight <= 10 => medium
• weight > 10 => large

packageList() should return a map with package name and quantity.
categoryList() should return a map with category name and List(package ids).