Solution Review: Missing Number
We solved the problem using lookup (hashtable), using the mathematical formula. Let's solve this more efficiently using bit-level operations with XOR and then optimize the solution.
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Arrays Overview
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Shifting Algorithms
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Array Construction
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Dynamic/Resizable Arrays
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Multi-Dimensional Arrays
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Array Problems
- Two Sum
- Find Largest Value
- Search an Element (Linear & Binary)
- Monotonic Array
- Find Even Number Of Digits
- Find Duplicate Element
- Find Odd Occurring Element
- Reverse Array: Array In-Place Algorithm
- How to reverse the letters in a string in Java
- Subsets Or Powerset
- Challenge 1: Missing Number
- Solution Review: Missing Number
- Challenge 2: Single Number
- Solution Review: Single Number