C Stack Array Implementation: Full Push, Pop, & Display Code (Menu Driven)
Learn how to build a fully functional Stack from scratch using C and Arrays! This step-by-step tutorial covers the entire implementation, including the core logic for PUSH and POP, handling edge cases like Overflow and Underflow, and creating a professional Menu-Driven interface using switch-case and do-while loops.
This is a "Global Variable" implementation, meaning your code is clean, modular, and easy to follow. Perfect for university lab exams and technical interview preparation!
What's inside this 30-minute masterclass:
✅ Declaring Global Arrays and the top pointer.
✅ Writing the push() function with a Size-1 Overflow check.
✅ Writing the pop() function with a -1 Underflow check.
✅ Creating an interactive user menu (Push, Pop, Display, Exit).
✅ The display() function: Navigating the stack from Top to Bottom.
✅ Live Debugging: Common array index errors and how to fix them.
📍 Timestamps:
00:00 - Introduction to Array Implementation
01:31 - Why we use Global Variables in DSA
02:59 - Writing the push(int element) function
04:55 - Logical Proof: Why top = 14 means a size 15 stack is full
08:39 - Incrementing top and assigning the element
10:20 - Writing the pop() function
11:50 - The secret of "Logical Deletion" (Decrementing top)
15:50 - Building the Menu-Driven Interface
18:05 - Using switch-case for user choices
21:50 - Adding a "Do you wish to continue?" loop
23:32 - Writing the display() function (LIFO order)
28:03 - Live Code Demo & Testing
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