Day 180 – LeetCode #440: K-th Smallest in Lexicographical Order | #java #200daysofcode #leetcode

🎯 Day 180 – LeetCode #440: K-th Smallest in Lexicographical Order | Java

Today’s challenge involved efficiently finding the K-th smallest number in lexicographical order from 1 to N.
This isn’t your basic iteration — it required:
✅ Understanding how prefixes form a tree
✅ Skipping subtrees using prefix counts
✅ Handling large inputs without timeouts

A must-know trick for mastering competitive coding and interviews! 🔍🧠

#Java #LeetCode #LexicographicalOrder #Trie #CompetitiveProgramming #200DaysOfCode #100DaysOfCode