Lucia Negreanu Maior’s Post

What if you could visualize a binary tree from the right side only? 🌲 In this video, we solve LeetCode 199 – Binary Tree Right Side View using a simple DFS logic in C++. Perfect for anyone preparing for coding interviews or learning tree traversal techniques. 🎥 Watch here: https://lnkd.in/dwycvsWd #LeetCode #Programming #Cplusplus #LANAcademy #CodingInterview

Two trees. Same leaves. Different structure. 🍃 In this video, we break down LeetCode 872 – Leaf-Similar Trees using modern C++ and intuitive DFS traversal. Understand how recursion simplifies tree comparisons and how to write clean, interview-ready code. 🎥 Watch here → https://lnkd.in/dkGFitU8 #LeetCode #Cplusplus #LANAcademy #CodingInterview #BinaryTree #Programming

📅 Day 41 of #100DaysOfCode Problem: Merge k Sorted Lists (LeetCode 23) This one was all about optimization and clean recursion. Instead of merging lists one by one, I used a divide and conquer approach merge them in pairs, just like merge sort. Approach: 1️⃣ If there’s only one list, return it - base case. 2️⃣ Split the range of lists into two halves using recursion. 3️⃣ Merge both halves using a helper function that merges two sorted lists. 4️⃣ Keep dividing until everything is combined into one sorted list. #100DaysOfCode #LeetCode #DSA #Cplusplus #ProblemSolving #DivideAndConquer #Recursion #CodingChallenge #Algorithms #Programming #CodeNewbie #DeveloperLife #LearningInPublic #KeepLearning #SoftwareEngineering #TechCommunity #DailyDSA #GrowthMindset #Motivation

Every programmer starts here! Here’s the simplest and easiest-to-understand Algorithm. Linear Search Algorithm in C++. It checks each element one by one until it finds the target. Perfect for beginners learning how searching works! #CPlusPlus #Coding #Algorithms #Learning #Programming #LearnToCode #DeveloperJourney #CodeNewbie #100DaysOfCode #ComputerScience #TechLearning

📅 Day 28 of #100DaysOfCode 🚀 Problem: 49. Group Anagrams (LeetCode) Approach: -> For each string, sort its characters — the sorted version acts as a unique key for its anagram group. -> Store all words with the same sorted key inside a hash map (unordered_map<string, vector<string>>). -> After processing all words, collect all grouped values from the map into a result vector. ->This leverages hashing + sorting for efficient grouping — O(n * k log k) where k is average string length. #100DaysOfCode #LeetCode #DSA #ProblemSolving #Cplusplus #CodingChallenge #Algorithms #DataStructures #Hashing #StringManipulation #CodingCommunity #Programming #DeveloperLife #LearnToCode #TechCommunity #DailyDSA #CodeNewbie #SoftwareEngineering #CodingJourney #Consistency #KeepLearning #LearningInPublic #GrowthMindset #Motivation

Master the most essential Hash Map and Set problems on LeetCode — from simple frequency checks to advanced logic patterns. Each tutorial walks you step by step through clean, modern C++ solutions, explained visually and intuitively. 🔹 Ideal for coding interview preparation 🔹 Covers both Easy and Medium problems 🔹 Topics: frequency maps, sets, hash tables, string comparison Patterns. Logic. Frequency. Learn to recognize them all in this focused Hash Map & Set Series in C++ — from easy to medium, explained clearly and efficiently. 🎥 Watch the full playlist 👉 https://lnkd.in/dMv6jfNp #LeetCode #Cplusplus #Programming #DataStructures #Algorithms #CodingInterview #LANAcademy #LearnToCode

Master the most essential Hash Map and Set problems on LeetCode — from simple frequency checks to advanced logic patterns. Each tutorial walks you step by step through clean, modern C++ solutions, explained visually and intuitively. 🔹 Ideal for coding interview preparation 🔹 Covers both Easy and Medium problems 🔹 Topics: frequency maps, sets, hash tables, string comparison Patterns. Logic. Frequency. Learn to recognize them all in this focused Hash Map & Set Series in C++ — from easy to medium, explained clearly and efficiently. 🎥 Watch the full playlist 👉 https://lnkd.in/dd_chzrm #LeetCode #Cplusplus #Programming #DataStructures #Algorithms #CodingInterview #LANAcademy #LearnToCode

𝐋𝐞𝐚𝐫𝐧 𝐂++ 𝐟𝐫𝐨𝐦 𝐒𝐜𝐫𝐚𝐭𝐜𝐡 𝐂𝐨𝐦𝐩𝐥𝐞𝐭𝐞 𝐂𝐨𝐮𝐫𝐬𝐞 𝐰𝐢𝐭𝐡 𝐄𝐱𝐚𝐦𝐩𝐥𝐞𝐬 Start coding with a step-by-step guide made for C++ for beginners. What you’ll master: Setup (VS Code + g++) Syntax, I/O, control flow & loops Functions, arrays/strings/vectors Pointers & memory (simple!) OOP (classes, inheritance, polymorphism) STL algorithms + templates File I/O & exceptions 🎯 Mini Project: Student Score Manager Dive in now 👉 https://lnkd.in/dS-jHfHY #CPlusPlus #Cpp #Programming #STL #OOP #LearnToCode

📅 Day 47 of #100DaysOfCode Problem: Combination Sum II (LeetCode 40) Approach: 1️⃣ Sorted the array to handle duplicates easily. 2️⃣ Used recursion to explore each number — either include it or skip it. 3️⃣ Reduced the target as I added elements, and when the target hit 0, that path became a valid combination. 4️⃣ Skipped duplicates using a simple check: if (i > idx && candidates[i] == candidates[i-1]) continue. #100DaysOfCode #LeetCode #DSA #ProblemSolving #Backtracking #Recursion #Cplusplus #CodingChallenge #Algorithms #Programming #DeveloperLife #CodeNewbie #SoftwareEngineering #DailyDSA #CodingJourney #KeepLearning #TechCommunity #Motivation #GrowthMindset

📅 Day 42 of #100DaysOfCode Problem: Subsets (LeetCode 78) Approach: 1️⃣ Used backtracking to explore every possibility — either include the current element or skip it. 2️⃣ When the index reaches the end, added the current subset to the result. 3️⃣ Backtracked properly to remove elements before exploring the next choice. 4️⃣ This ensures every possible combination is covered without duplicates. #100DaysOfCode #LeetCode #Backtracking #Recursion #DSA #Cplusplus #ProblemSolving #CodingChallenge #Algorithms #Programming #DeveloperLife #CodeNewbie #DailyDSA #TechCommunity #KeepLearning #GrowthMindset #SoftwareEngineering #LearningInPublic #Motivation