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Reverse a Linked List - implement solution for singly linked list

Python/Codingeasy0.4 min readPremium
Frequency
Low
Asked at 1 company
Category
179
questions in Python/Coding
Difficulty Split
127E|24M|28H
in this category
Total Bank
1,863
across 7 categories
Asked at these companies
Paytm
Expert AnswerPremium
77 wordsInterview-ready
**Why In-Place Reversal:** O(n) time, O(1) space. Recursive version uses O(n) stack—fails for long lists (stack overflow). **Algorithm:** Iterate, reverse next pointers: save next, point current to prev, advance prev and curr. Handles empty and single-node. **Analogy in Data Eng:** Reverse order of events (LIFO processing), undo stacks....
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