ui and vi.

Construct a 2D grid that satisfies these conditions:

The grid contains all nodes from 0 to n - 1 in its cells, with each node appearing exactly once.
Two nodes should be in adjacent grid cells (horizontally or vertically) if and only if there is an edge between them in edges.

It is guaranteed that edges can form a 2D grid that satisfies the conditions.

Return a 2D integer array satisfying the conditions above. If there are multiple solutions, return any of them.

Input: n = 4, edges = [[0,1],[0,2],[1,3],[2