Скачать или смотреть 3304. Find the K-th Character in String Game I | leetcode 3304 | Iterative & Optimised Java Solution

🎯 LeetCode 3304 - Find the K-th Character in String Game I | Iterative & Optimised Java Solutions Explained

In this video, we break down LeetCode Problem 3304: Find the K-th Character in String Game I. You’ll learn how to solve this unique string construction problem using two clear approaches:

✅ Iterative Approach – Simulates the infinite string generation by appending shifted characters until reaching index k.
⚡ Optimized Bit-Style Approach – Uses mathematical logic to find the K-th character in O(log k) time without building the full string.

🧠 Key Concepts Covered:

Infinite string building pattern: "a" → "ab" → "abbc" → "abbcccd" → ...

Character shifting with wraparound ('z' → 'a')

Why (char)(ch + 1) can be dangerous without edge checks

Full dry run for inputs like k = 12

How the optimised solution avoids memory/time limits

📌 Perfect for:

Java developers

LeetCode for beginners to advanced users

String manipulation practice

Efficient algorithm learning

Coding interview preparation

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