LeetCode 2976 | Minimum Cost to Convert String I | Daily LeetCode | Day 29/365 скачать в хорошем качестве

LeetCode 2976 | Minimum Cost to Convert String I | Daily LeetCode | Day 29/365

LeetCode 2976 | Minimum Cost to Convert String I | Daily LeetCode | Day 29/365 | Graph + Floyd Warshall | C++ Solution In this video, we solve LeetCode Daily Problem 2976: Minimum Cost to Convert String I, where the task is to convert one string into another with the minimum total cost, given allowed character transformations and their costs. 🧠 Core Idea: Each character conversion can be treated as a directed weighted graph edge. To find the cheapest way to convert one character to another (possibly via intermediate characters), we use the Floyd–Warshall algorithm to compute all-pairs shortest paths. 📌 What you’ll learn in this video: • How to model character conversions as a graph • Why Floyd–Warshall is ideal for small fixed alphabets • Handling impossible conversions safely • Step-by-step cost calculation for strings • Clean and interview-ready C++ implementation • Time and space complexity analysis ⏱ Time Complexity: O(26³ + n) 💾 Space Complexity: O(26²) 💻 Problem Link: https://leetcode.com/problems/minimum... 🎯 Why this problem matters: This problem beautifully combines strings + graphs + shortest path algorithms, a pattern frequently seen in interview and contest problems. 👍 Like the video if graph-based thinking clicked 💬 Comment if you want a dry run or visual graph explanation 🔔 Subscribe for 365 Days of LeetCode Challenge #LeetCode #DailyLeetCode #Day29of365 #Graphs #FloydWarshall #Strings #CPlusPlus #DSA #InterviewPreparation