Tag: array

All the articles with the tag "array".

• BFS with Re-visiting Cells: Grid with Obstacles Elimination

  6 Apr, 2026

  Learn how to modify the standard Breadth-First Search (BFS) algorithm to allow revisiting cells when solving grid problems.

• Find neighbours in 2D grid

  6 Jun, 2022

  A comprehensive guide to finding neighboring cells in 2D grids using JavaScript, covering both cardinal (4-way) and diagonal (8-way) neighbors. Learn efficient algorithms with clear examples for traditional 2D arrays and optimized 1D array representations.