← Questions

Find a pattern across the leaf text of a binary tree

0
GoogleCodingLast asked Jun 2026

Each leaf of a binary tree holds a piece of text. Read from left to right, the leaves spell one long string. Decide whether a given pattern appears in that string, including when it spans several leaves, ideally without building the whole string first.

Write and test your solution herePython in your browser, the question's tests level by level, every submission kept for you.Sign in to start coding