Search⌘ K
AI Features

Solution: Word Search II

Explore how to find multiple words in a 2D letter grid by mastering trie-based prefix matching combined with depth-first search backtracking. Understand the solution's time and space complexity to optimize coding interviews.

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:

  • 11 \leq rows, columns 12\leq 12
...