Search⌘ K
AI Features
Home
Courses
Grokking the Coding Interview Patterns in Python

Solution: Word Search II

Explore how to efficiently find words from a list in a 2D grid using trie structures combined with backtracking. Understand the method for prefix matching and depth-first search to reduce search space and improve performance for coding interview problems.

We'll cover the following...

Statement

You are given a list of strings that you need to find in a 2D grid of letters such that the string can be constructed from letters in sequentially adjacent cells. The cells are considered sequentially adjacent when they are neighbors to each other either horizontally or vertically. The solution should return a list containing the strings from the input list that were found in the grid.

Constraints:

  • 1≤1 \leq rows, columns ≤12\leq 12
...