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Quick revision: Recursion
A short refresh before moving into tree traversal.
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Algorithms & Data Structures
Binary Search
Understand midpoint decisions, boundaries and why binary search reduces the search space so quickly.
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Your Week 03 revision notes
Nexora organized the key ideas from your recent lessons.
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Binary search rule
After comparing the midpoint, eliminate the half that cannot contain the target.
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Remember the complexity
Binary search runs in logarithmic time when the data is ordered.
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Watch the boundaries
Updating lower and upper bounds correctly prevents infinite loops.
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