147. Insertion Sort List | Linked List Insertion Sort | C++ Step by Step Explanation
Автор: Mohd Wasim DSA
Загружено: 2025-12-17
Просмотров: 14
In this video, we solve LeetCode Problem 147 – Insertion Sort List using C++.
We implement Insertion Sort on a Singly Linked List, where nodes are sorted one by one by inserting them into their correct position in a sorted part of the list.
🔹 Topics Covered:
What is Insertion Sort?
How Insertion Sort works on Linked List
Step-by-step dry run
Complete C++ code
Time and Space Complexity
Interview tips & common mistakes
🔹 Why Linked List Insertion Sort?
Insertion Sort is well-suited for linked lists because:
No shifting of elements is required
Only pointer manipulation is used
🔹 Example:
Input:
4 → 2 → 1 → 3
Output:
1 → 2 → 3 → 4
🔹 Complexity:
Time Complexity: O(n²)
Space Complexity: O(1)
This problem is frequently asked in coding interviews and helps in mastering linked list pointer manipulation.
📌 Watch till the end for a clear understanding and interview-ready appro
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