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Grokking the Coding Interview Patterns in C++

Binary Tree Cameras

Explore the problem of placing the minimum number of cameras on a binary tree to monitor every node, including parents and children. Learn to apply dynamic programming strategies in C++ to optimize coverage while minimizing cameras. This lesson helps you understand problem constraints, develop solutions, and implement them efficiently.

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Statement

You are given the root of a binary tree. Cameras can be installed on any node, and each camera can monitor itself, its parent, and its immediate children.

Your task is to determine the minimum number of cameras required to monitor every node in the tree.

Constraints:

  • The number of nodes in the ...