3Sum - LeetCode 15 - C++ скачать в хорошем качестве

3Sum - LeetCode 15 - C++

LeetCode Problem: https://leetcode.com/problems/3sum/ Crack one of the most popular FAANG interview questions! In this comprehensive video, I'll walk you through LeetCode Problem #15 - 3Sum with the optimal O(n²) solution. This problem combines sorting, two pointers, and duplicate handling - essential skills for any serious programmer! 🎯 What You'll Learn ✅ Problem Analysis: Understanding the triplet sum challenge ✅ Multiple Approaches: From brute force O(n³) to optimal O(n²) ✅ Duplicate Handling: The trickiest part - avoiding duplicate triplets ✅ Two-Pointer Mastery: Advanced application after sorting ✅ C++ Implementation: Clean, bug-free code that passes all cases ✅ Interview Strategy: How to approach this step-by-step in interviews 🚀 Solution Highlights Time Complexity: O(n²) - optimal solution without hash maps Space Complexity: O(1) or O(log n) depending on sorting algorithm Key Technique: Sort + Fixed element + Two pointers