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DFS Maze Pathfinding
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DFS Maze Pathfinding

MediumPython

Problem

Implement a depth-first search (DFS) algorithm to solve a standard maze or pathfinding problem.

Use a rectangular grid where 0 represents an open cell and 1 represents a blocked cell. Return True if four-directional movement can connect start to end, otherwise return False.

Implement has_path(grid, start, end) with list coordinates in [row, column] format.

Constraints

  • 1 <= len(grid) <= 100
  • 1 <= len(grid[0]) <= 100
  • The grid is rectangular.
  • Each cell is either 0 or 1.
  • start and end are valid [row, column] coordinates.
  • Movement is allowed only up, down, left, or right.

Function Signature

def has_path(grid, start, end):
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