LeetCode 75 C++ | Step-by-Step Solutions (LAN Academy) - Path Sum III in C++ | LeetCode 437 Explained Step-by-Step (DFS + Prefix Sum Logic)

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This course includes

5.5 hours of video
Certificate of completion
Access on mobile and TV

Summary

Keywords

invata educatie programare matematica programming algoritmica algoritmi web development developeri js javascript

Full Transcript

In this video, we solve LeetCode 437 – Path Sum III using C++ and a clean, recursive DFS approach with prefix sums for efficiency. This problem teaches you how to count the number of paths in a binary tree that sum to a target — a key skill for technical interviews. You’ll learn: 🔹 How to use DFS to explore all paths efficiently 🔹 How prefix sums speed up tree problems 🔹 How to write a clean and readable C++ solution Time complexity: O(n) Space complexity: O(n) 🎥 Watch now and master one of the most elegant binary tree problems in LeetCode! Follow LAN Academy: 🌐 lanacademy-school.thinkific.com 📺 YouTube: @lanacademy9521 🐦 Twitter: x.com/SolutionsLan #LeetCode #Cplusplus #Programming #DFS #PrefixSum #BinaryTree #LANAcademy #CodingInterview @reper #foryou #viral #reper #urmaritori #for

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