#dfs
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To see the question, click here. Naive Approach The idea is to maintain two stacks nodeStack and sumStack . Until nodeStack is empty; if it's a leaf...
Depth-First Search (DFS) is a traversal technique used in graph data structures that explores each branch as far as possible before backtracking. This...
Tree DFS (Depth-First Search) is a traversal technique used in tree data structures that explores each branch as far as possible before backtracking....
Matrix traversal, also known as Island problems, often encountered in matrix or grid-based scenarios, typically involves identifying and counting...
