Study resource
Tree-traversal common mistakes
Study Tree-traversal with curriculum-aligned Common Mistakes resources, practice links, and exam-focused support.
At a glance
common mistakes
Resource type
Topic
Tree-traversal
AqaA LevelComputer ScienceFundamentals of algorithms
Common mistakes
Putting the root in the wrong position
Treating all three traversals as if the root is visited first.
Fix itRemember the three patterns: pre-order is current-left-right, in-order is left-current-right, and post-order is left-right-current.
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