#92 Leetcode 206 | Reverse Any List with a STACK! 🔄 #Java #Shorts #ytshorts

Can’t get the hang of pointer manipulation? 🤯 Try the Stack Approach!

​In Day 11 of our series, we reverse a Linked List from 1 -) 2 -) 3 -) 4 -) 5 using the LIFO (Last-In, First-Out) principle.

​🚀 The Logic:

​The Push: We traverse the list and push every node onto a Stack. Since 5 is the last one in, it’s the first one at the top.

​The Pop: We pop the nodes one by one. The Stack naturally gives them back to us in reverse order: 5, 4, 3, 2, 1.

​The Link: We re-connect the nodes as they come out and set the new tail to null.

​💡 The Trade-off:

While this uses O(n) extra space, it is the most intuitive way to understand the reversal process before moving on to pointer-only optimizations.

​Complexity:

⏱️ Time: O(n)

💾 Space: O(n)

​#LeetCode #Java #Stack #LinkedList #CodingInterview #Algorithms #InterviewTechBytes #ITB #JavaShorts #DataStructures #DSA #SoftwareEngineering

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