Hiring process8 levels
  1. 1 IQ Test
  2. 2 Additional Online Test (If Required)
  3. 3 Office Interview with Hiring Manager
  4. 4 Unpaid Test Task (Motivation Check)
  5. 5 Paid Test Task and Follow-Up Interview
  6. 6 Iterative Paid Test Tasks
  7. 7 Office Verification
  8. 8 Final Interview with the Founder

Problems > Count the Lakes > Editorial

Count the Lakes — Solution & Editorial

Back to the Problem

Flood fill from every unvisited water cell using BFS/DFS over the four side-neighbours.

Complexity: O(NM)