Quick Summary
- Find the minimum sum along any root-to-leaf path in an N-ary tree.
- A leaf node has no children, and the path sum includes every node from the root down to that leaf.
- Node values can be negative, requiring careful comparison across all possible paths.
What This Tests
- Recursive tree traversal and state accumulation
- Identifying and handling base cases in recursive functions
- Aggregating results across variable-number child branches
- Translating binary tree techniques to N-ary structures
Common Patterns
DFS/BFS
Recursion
Divide and Conquer
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