LEETCODE 2977 Explained 🔥 Trie + Floyd Warshall + DP | Hard Problem | скачать в хорошем качестве

LEETCODE 2977 Explained 🔥 Trie + Floyd Warshall + DP | Hard Problem |

Problem Link - https://leetcode.com/problems/minimum... LeetCode 2977, Minimum Cost to Convert String II, LeetCode Hard, Trie, Floyd Warshall, String DP, Dynamic Programming, DSA Unlocked, Coding Interview, FAANG Preparation In this video, we deep dive into LeetCode 2977 (Hard) and break down a powerful solution using Trie, Graph Algorithms, and Dynamic Programming. This problem is tricky because: You can convert substrings, not just characters Overlapping operations are not allowed Multiple conversions are allowed on the same substring Direct greedy or character-by-character approaches fail To solve this optimally, we use a three-step strategy: 🔹 What You’ll Learn in This Video How to use a Trie to efficiently match substrings How to model substring conversions as a graph problem Why Floyd–Warshall is required to minimize chained conversion costs How DFS + DP ensures non-overlapping operations How to identify when conversion is impossible #problemoftheday #programming #coding #consistency #softwaredevelopment #javascript #java #dsa #datastructure #programminglanguage #codeprep #leetcode #correctcoding