1. Implement a function to solve the "Cheapest Flights Within K Stops" problem using BFS.

2. Write a function to solve the "Shortest Path Visiting All Nodes" problem using BFS.

3. Implement a function to solve the "Find the Closest Leaf in a Binary Tree" problem using BFS.

4. Write a function to solve the "Jump Game IV" problem using BFS.

5. Implement a function to solve the "Minimum Cost to Reach Destination in Time" problem using BFS.

6. Write a function to solve the "Reachable Nodes in Subdivided Graph" problem using BFS.

7. Implement a function to solve the "Shortest Path to Get All Keys" problem using BFS.

8. Write a function to solve the "Minimum Number of Flips to Convert Binary Matrix to Zero Matrix" problem using BFS.

9. Implement a function to solve the "Shortest Path to Form String by Concatenating Array Words" problem using BFS.

10. Write a function to solve the "Minimum Moves to Reach Target with Rotations" problem using BFS.

11. Implement a function to solve the "Shortest Path in a Grid with Obstacles Elimination" problem using BFS.

12. Write a function to solve the "Transform to Chessboard" problem using BFS.

13. Implement a function to solve the "Minimum Number of Operations to Convert Binary Tree to Zero Tree" problem using BFS.

14. Write a function to solve the "Find the Minimum Number of Fibonacci Numbers Whose Sum Is K" problem using BFS.

15. Implement a function to solve the "Minimum Number of Refueling Stops" problem using BFS.

16. Write a function to solve the "Minimum Number of Flips to Convert Binary Matrix to Identity Matrix" problem using BFS.

17. Implement a function to solve the "Shortest Path to Reach Target Node with Weighted Edges" problem using BFS.

18. Write a function to solve the "Minimum Number of Moves to Make All Elements Equal in a Grid" problem using BFS.

19. Implement a function to solve the "Find the Longest Path in a Binary Matrix" problem using BFS.

20. Write a function to solve the "Minimum Time to Collect All Apples in a Tree" problem using BFS.

21. Implement a function to solve the "Shortest Path to Reach All Nodes in a Graph" problem using BFS.

22. Write a function to solve the "Minimum Number of Steps to Reduce a Number to Zero" problem using BFS.

23. Implement a function to solve the "Find the Longest Path with Alternating Colors" problem using BFS.

24. Write a function to solve the "Shortest Path in a Grid with Consecutive Moves" problem using BFS.

25. Implement a function to solve the "Maximum Number of Non-Overlapping Subarrays with Sum Equals Target" problem using BFS.

26. Write a function to solve the "Shortest Path in a Grid with Restricted Moves" problem using BFS.

27. Implement a function to solve the "Minimum Number of Steps to Make Two Strings Anagram" problem using BFS.

28. Write a function to solve the "Shortest Path to Reach Destination with Specific Move Rules" problem using BFS.

29. Implement a function to solve the "Minimum Number of Steps to Make All Elements Equal in a Matrix" problem using BFS.

30. Write a function to solve the "Maximum Number of Non-Overlapping Subarrays with Product Less Than K" problem using BFS.