Coding · Easy · Free
Number of islands (DFS/BFS)
CodingGraphsFresher
Approach
- Clarify constraints and edge cases for: Number of islands (DFS/BFS).
- Choose appropriate data structure; state time/space complexity before coding.
Java Solution
Java
// Java solution sketch for: Number of islands (DFS/BFS)
// Walk through one happy path + one edge case in the interview.| Complexity | |
|---|---|
| Time | Depends on approach — state after coding |
| Space | — |
Interview tip: Strong answers tie Graphs patterns to a real production debugging story.