LeetCode 75 C++ | Step-by-Step Solutions (LAN Academy) - LeetCode 1268: Search Suggestions System — Autocomplete Top 3 | C++

LeetCode 1268. Search Suggestions System — after each character typed, return up to 3 product suggestions with the same prefix (lexicographically smallest). In this video you’ll learn: The core idea behind autocomplete suggestions Efficient approach using sorting + prefix range narrowing How to output the top 3 lexicographically smallest matches Complexity and edge cases Approach: Sort products lexicographically For each prefix of searchWord, keep a valid index range [L, R] where products match the prefix After narrowing the range, take up to the first 3 strings from that range Complexity: Sorting: O(n log n) Each prefix step: range updates, overall efficient for constraints Extra space: O(1) besides output Leetcode playlist: https://www.youtube.com/playlist?list=PLF0G-7pZcOza_jyAxwMpa5Kn3vST5smK Subscribe: youtube.com/channel/UCdKpV0t_sLv9gUsxHOYrt7g?sub_confirmation=1 #LeetCode #Autocomplete #Trie #BinarySearch #CPlusPlus#leetcod e #leetcodecoding #leetcodesolution #leetcodechallenge #faang #fang #computerscience #cs #codingtiktok #coding #codinglife #boostofhope #fyp #codinginterview #softwareengineer #swe #tech #foryou #python #learntocode #google #techtok #programming #algorithms #learntocode @reper #foryou #viral #reper #urmaritori #for