DFS Isn't Magic — It's Just a Tree Doing What You Told It To

If you've stared at a binary tree problem, written dfs(root.left) and dfs(root.right) without really knowing why it works, this one's for you.

DFS Isn't Magic — It's Just a Tree Doing What You Told It To

If you've stared at a binary tree problem, written dfs(root.left) and dfs(root.right) without really knowing why it works, this one's for you.

ravindrasinghshah.substack.com