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+# Stack
+
+A stack is a linear data structure that follows the  
+**Last In First Out (LIFO)** principle.
+
+You can think of a stack like a stack of plates. When plates are placed one
+over another, you can only remove the top plate safely. Trying to remove
+a plate from the middle would disturb the entire stack.
+
+Similarly, in a stack:
+- Elements are added on top of each other
+- Only the top element can be accessed or removed
+- Random access to elements is not allowed
+
+## Topics Covered
+- Introduction to Stack
+- Stack implementation in C++
+- Standard stack problems
diff --git a/DSA/2.3 Stack/README.md b/DSA/2.3 Stack/README.md
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