Depth-First Search pattern
Same Tree
Given the roots of two binary trees p and q, return true if they are structurally identical and every corresponding pair of nodes has the same value. Watch it run step by step, then write your own pseudocode and get it checked by AI.
- LeetCode 100
- Easy
- 1 approach
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Depth-First SearchLeetCode 100
Easy
The approach
- 01 Recursive lockstep DFS O(n)O(h) space
What you will learn
- How to read Same Tree and spot the depth-first search pattern in it
- Recursive lockstep DFS: O(n) time, O(h) space
- The pseudocode for each approach, its line lit as the animation runs
- Practice: write your own pseudocode and get it checked
More Depth-First Search
See Same Tree run, step by step
Sign in and this page opens on the animation, with all 18 Depth-First Search problems beside it.
DSA comes with the all labs plan and every ChaiCode batch.