Find the Number That Appears Once | Striver A2Z DSA – Arrays Problem 12 | Java & C++
Автор: Devnomy
Загружено: 2025-12-30
Просмотров: 10
In this video, I solve Arrays Problem 12: Find the Number That Appears Once, While Others Appear Twice from Striver’s A2Z DSA Sheet using the optimal XOR approach.
Complete Striver’s A2Z DSA Sheet Playlist: • Striver's A2Z Sheet in Java and C++
You’ll learn:
✅ Why XOR is the best solution for this problem
✅ How duplicate numbers cancel out
✅ Step-by-step explanation with examples
✅ Brute force vs optimal approach
✅ Implementation in Java and C++
✅ Time & Space Complexity explained
This is a very common interview problem asked in MAANG, product-based companies, and coding rounds, especially to test bit manipulation and array logic.
📌 Part of my Striver A2Z DSA Sheet – Arrays Series
🔍 Keywords (Natural & Effective)
find number appears once, striver a2z arrays, xor array problem, single number array, appears once others twice, single number java, single number c++
🏷️ Hashtags
#StriverA2Z #DSA #Arrays #SingleNumber #XOR #BitManipulation #Java #Cpp #CodingInterview #Placements #DSAForBeginners
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