Most voted questions under tag data structures

+3 votes

1 answer

How would you implement a hash table ? How do you deal with collisions?

posted Nov 27, 2015 by Mohammed Hussain

+3 votes

1 answer

Write a routine that prints out a 2-D array in spiral order?

posted Nov 27, 2015 by Mohammed Hussain

+3 votes

2 answers

Write a function to find the depth of a binary tree? Please give sample code?

posted Nov 23, 2015 by Mohammed Hussain

+3 votes

1 answer

Given an active stream of sorted arrays, how would you merge them efficiently?

posted Nov 16, 2015 by Saif Khanam

+3 votes

2 answers

A list contains a set of numbers, one number presents once and other numbers present even no. of times.

posted Oct 26, 2015 by Vikram Singh

+3 votes

1 answer

Print all permutations of a string and share the complexity of the algorithm?

posted Oct 14, 2015 by anonymous

+3 votes

1 answer

How to divide an array into two parts so that average of both the arrays are equal?

posted Oct 12, 2015 by anonymous

+3 votes

1 answer

How can we implement an LRU cache using just a single container i.e. map or unordered_map?

posted Oct 8, 2015 by anonymous

+3 votes

1 answer

Parenthesis are never needed in prefix or postfix expressions. Why?

posted Aug 28, 2015 by Mohammed Hussain

+3 votes

1 answer

What is the average number of comparisons needed in a sequential search ....?

posted Aug 17, 2015 by Mohammed Hussain

+3 votes

0 answers

When will you sort an array of pointers to list elements, rather than sorting the elements themselves?

posted Aug 17, 2015 by Mohammed Hussain

+3 votes

1 answer

In which data structure, elements can be added or removed at either end, but not in the middle?

posted Aug 11, 2015 by Mohammed Hussain

+3 votes

1 answer

Write a Java program to sort a array using Bubble Sort algorithm?

posted Aug 11, 2015 by Mohammed Hussain

+3 votes

1 answer

How to find 3rd element from end in a linked list in one pass?

posted Aug 7, 2015 by Mohammed Hussain

+3 votes

1 answer

What is Big-O notation? Please explain with some examples?

posted Jun 9, 2015 by Karthick.c

+3 votes

1 answer

Program to concatenate two linked list in Data structure?

posted Apr 28, 2015 by Jalal

+3 votes

1 answer

What is the data structures used to perform recursion?

posted Apr 24, 2015 by Vrije Mani Upadhyay

+3 votes

1 answer

Which sorting algorithm is considered the fastest? Explain

posted Apr 21, 2015 by Jalal

+3 votes

2 answers

Give a basic algorithm for searching a binary search tree?

posted Apr 15, 2015 by Jalal

+3 votes

1 answer

What are the parts of a linked list?Explain?

posted Apr 9, 2015 by Alwaz

+3 votes

1 answer

How does selection sort work?

posted Apr 9, 2015 by Alwaz

+3 votes

1 answer

What is Fibonacci search? Please explain in detail?

posted Apr 7, 2015 by Anwar

+3 votes

1 answer

What is an AVL tree in datastructure?

posted Mar 31, 2015 by Jalal

+3 votes

1 answer

How do you search for a target key in a linked list?

posted Mar 27, 2015 by Jalal

+3 votes

1 answer

Please explain Stack Abstract Data Type with C example code?

posted Feb 25, 2015 by Jalal

+3 votes

1 answer

What are the advantages of Data Structures and Abstract Data Types and why we should study them?

posted Feb 25, 2015 by Jalal

+3 votes

2 answers

Differentiate file structure from storage structure?

posted Feb 10, 2015 by Jalal

+3 votes

3 answers

Explain Insertion Sorting with example in Data Structures and Algorithm?

posted Feb 10, 2015 by Jalal

+3 votes

1 answer

How could find Number that Appears Only once in array of Duplicates?

posted Dec 9, 2014 by Vrije Mani Upadhyay

+3 votes

1 answer

Prefix and Post-fix notations in data structure and use of it ?

posted Nov 25, 2014 by Neeraj Mishra

+3 votes

0 answers

If n elements are inserted in heap then what is the time complexity to insert n elements ?

posted Nov 22, 2014 by anonymous

+3 votes

1 answer

Difference between BST and Heap ?

posted Nov 20, 2014 by Neeraj Mishra

+3 votes

2 answers

Why quicksort is called quick though it is not the fastest?

posted Nov 12, 2014 by anonymous

+3 votes

0 answers

Why does the size of a blank structure is one?

posted Nov 10, 2014 by Ganesh

+3 votes

0 answers

C: I want to add two numbers represented by a singly linked list?

posted Oct 20, 2014 by anonymous

+3 votes

0 answers

When a Data Structure can be qualified as a Queue?

posted Oct 14, 2014 by anonymous

+3 votes

2 answers

WAP which outputs contiguous sequence whose sum is maximum in an array (It can have all negatives number too).

posted Oct 11, 2014 by Harshita

+3 votes

1 answer

What should be the basis of selecting a data structure for the program?

posted Oct 1, 2014 by Tapesh Kulkarni

+3 votes

2 answers

How would you find out if one of the pointers in a linked list is corrupted or not?

posted Sep 24, 2014 by Aarti Jain

+3 votes

1 answer

Rearrange a string so that all same characters become d distance away!

posted May 7, 2014 by Muskan

+3 votes

2 answers

How can I implement Stack using Queue?

posted Apr 23, 2014 by Atul Mishra

+3 votes

1 answer

Pairwise swap elements of a given linked list by changing links?

posted Apr 21, 2014 by Atul Mishra

+3 votes

0 answers

How to delete y number of nodes after x number of nodes in a single linklist?

posted Apr 17, 2014 by Chahat Sharma

+3 votes

1 answer

How to identify, whether two trees are isomorphic or not?

posted Apr 16, 2014 by Atul Mishra

+3 votes

1 answer

Given only a pointer to a node to be deleted in a singly linked list, how do you delete it?

posted Apr 15, 2014 by Atul Mishra

+3 votes

1 answer

Write a function that counts the number of times a given int occurs in a Linked List?

posted Apr 15, 2014 by Vishvachi Tiwari

+3 votes

1 answer

Printing all permutations of a given string in C

posted Apr 10, 2014 by anonymous

+3 votes

1 answer

Memory allocation of variables in C?

posted Mar 20, 2014 by sivanraj

+3 votes

1 answer

Write a program to reverse the string having numeric and letters. But only letters should be reversed not the digits??

posted Mar 19, 2014 by Atul Mishra

+3 votes

1 answer

How to find the first non-repeated character in a string of n length?

posted Mar 9, 2014 by Atul Mishra