Find the Smallest Missing Positive Integer | HackerRank Software Engineer Prep Kit скачать в хорошем качестве

Find the Smallest Missing Positive Integer | HackerRank Software Engineer Prep Kit

In this video, we solve “Find the Smallest Missing Positive Integer”, a classic and high-frequency problem from HackerRank, commonly asked in Software Engineer interviews. We explain: ✅ The intuition behind the O(n) solution ✅ Why negative numbers and large values are ignored ✅ How the in-place (O(1) space) algorithm works ✅ Step-by-step dry run with examples ✅ Clean and interview-ready Java code 📌 Who Should Watch This? 🔥 HackerRank Software Engineer Preparation Kit learners 🎓 CS / AI / DS students 💻 Freshers & experienced developers preparing for interviews 🧠 Anyone learning advanced array manipulation 🧩 Problem Highlights Uses cyclic sort / index placement technique Avoids extra space Frequently asked by: Amazon Google Microsoft Atlassian BlackRock 🧠 What You’ll Learn Why the answer always lies between 1 and n+1 How to place numbers at their correct indices How to avoid infinite loops during swapping How interviewers expect you to explain this problem 🔥 Why This Video? This video is part of the Ultimate HackerRank Guide for Software Engineer Interview Preparation, focused on thinking patterns, not memorization. Don’t Forget To 👍 Like the video 📌 Subscribe for more HackerRank walkthroughs 🔔 Turn on notifications