LeetCode 4072 | Maximum Alternating Subarray Sum With One Deletion | DP + Memoization | C++

LeetCode 4072: Maximum Alternating Subarray Sum With One Deletion Problem Link : https://leetcode.com/problems/maximum... Source Code : https://github.com/Krishnkantm/DSA-Co... In this video, we solve LeetCode 4072 using Dynamic Programming and Memoization. Approach: Try every possible starting index Maintain alternating sign using parity At each index, either include or delete the element Allow at most one deletion Use 3D DP for index, parity and deletion state Find the maximum alternating subarray sum Topics: Dynamic Programming, Memoization, Recursion, Alternating Sum, Subarray, Deletion, Parity, 3D DP, LeetCode Time Complexity: O(N) Space Complexity: O(N) Subscribe to Logic Mode for LeetCode, GFG and DSA solutions in C++.