Single Number — LeetCode
Step-by-step algorithm visualization for LeetCode #136 (Single Number). The solution applies XOR across all elements, leveraging the properties a ⊕ a = 0 and a ⊕ 0 = a to cancel duplicates and isolate the single number.
Complexity Analysis:
Time Complexity: O(n) — we traverse the list of n elements once.
Space Complexity: O(1) — only a single integer variable is used.
Timestamps:
0:00 — XOR Accumulation Setup
0:05 — Bitwise Cancellation Process
0:43 — Final Single Number Result
Resources:
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