The first step is a recruiter phone screening interview. She/he will introduce the hiring process and ask some behavioral questions.

The second step is at least two technical coding interviews. There are two coding questions for each interview.

Given an m x n grid of characters board and a string word, return true if word exists in the grid.

The word can be constructed from letters of sequentially adjacent cells, where adjacent cells are horizontally or vertically neighboring. The same letter cell may not be used more than once.