TCS Coding Question Explained 😎 Missing Number (2 Approaches) | Java
In this video, we solve the Missing Number Problem in Java using two different input formats:
✅ Space-separated input
✅ Comma-separated input
This question is very commonly asked in TCS NQT, TCS Digital, Infosys, Wipro, and other placement exams.
We use the mathematical formula:
N × (N + 1) / 2
to efficiently find the missing number in O(N) time complexity.
📌 Topics Covered:
Problem statement explanation
Input format variations
Step-by-step dry run
Java implementation
Time complexity analysis
Interview tips
This is Part 2 of Basic Coding Problems for Placements.
If you're preparing for:
TCS NQT
Campus placements
Java interviews
Coding rounds
This video is a must-watch 🔥
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