LeetCode 3551: Minimum Swaps to Sort by Digit Sum | C++ Solution + Intuition

In this video, we solve *LeetCode 3551 – Minimum Swaps to Sort by Digit Sum* using C++. We'll understand the problem step by step, build the intuition behind the solution, and explain how cycle decomposition helps us calculate the minimum number of swaps. 📌 *What you'll learn:* Understanding the problem statement Calculating the digit sum Sorting elements using the required criteria Understanding the permutation and cycle decomposition approach Dry run and C++ implementation Time and space complexity 💻 *Problem:* LeetCode 3551 – Minimum Swaps to Sort by Digit Sum 🔗 *Problem link:* https://leetcode.com/problems/minimum-swap... If you find this explanation helpful, like the video, share your approach in the comments, and subscribe for more C++, DSA, and LeetCode solutions. #LeetCode #CPP #DSA