A data structure is a way of organizing data that considers not only the items stored, but also their relationship to each other. Advance knowledge about the relationship between data items allows designing of efficient algorithms for the manipulation of data. The heterogeneous linked list contains different data types in its nodes and we need a link, pointer to connect them. It is not possible to use ordinary pointers for this. So we go for void pointer. Void pointer is capable of storing pointer to any type as it is a generic pointer type. Two. One queue is used for actual storing of data and another for storing priorities. Stack. Because of its LIFO (Last In First Out) property it remembers its 'caller' so knows whom to return when the function has to return. Recursion makes use of system stack for storing the return addresses of the function calls. Every recursive function has its equivalent iterative (non-recursive) function. Even when such equivalent iterative procedures are written, explicit stack is to be used. Polish and Reverse Polish notations. Prefix Notation: ^ - * +ABC - DE + FG AB + C * DE - - FG + ^ (a) Insertion (b) Selection (c) Exchange (d) Deletion (d) Deletion. Using insertion we can perform insertion sort, using selection we can perform selection sort, using exchange we can perform the bubble sort (and other similar sorting methods). But no sorting method can be done just using deletion. 21 Let us take a tree with 5 nodes (n=5) It will have only 6 (ie,5+1) null branches. In general, A binary tree with n nodes has exactly n+1 null nodes.
Postfix Notation:
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hat is data structure?
List out the areas in which data structures are applied extensively?
Compiler Design,
Operating System,
Database Management System,
Statistical analysis package,
Numerical Analysis,
Graphics,
Artificial Intelligence,
Simulation
What are the major data structures used in the following areas : RDBMS, Network data model & Hierarchical data model.
RDBMS – Array (i.e. Array of structures)
Network data model – Graph
Hierarchical data model – Trees
If you are using C language to implement the heterogeneous linked list, what pointer type will you use?
Minimum number of queues needed to implement the priority queue?
What is the data structures used to perform recursion?
What are the notations used in Evaluation of Arithmetic Expressions using prefix and postfix forms?
Convert the expression ((A + B) * C – (D – E) ^ (F + G)) to equivalent Prefix and Postfix notations.
Sorting is not possible by using which of the following methods?
A binary tree with 20 nodes has null branches?
