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Problem Solving - Coggle Diagram
Problem Solving
2D-Arrays
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For BFS and DFS, you'll probably need another matrix to track visited cells
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Arrays and Strings
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Not sorted?
If sorting makes the solution easier without affecting time complexity, sort it. For example, duplicates
Using extra DS (Map, Set, ...etc)
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Tree
Check first its type - Binary, BST, complete, full, perfect
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