Solve	Discussion
Given an array of sorted integers and find the closest ...	Discuss
Write a function that accepts root of a binary tree and print zigzag ...	Discuss
Write code to rotate a square matrix ...	Discuss
Given three arrays sorted in non-decreasing order, print all ...	Discuss
Design and implement a calculator that can ...	Discuss
Write a function that does an in-order traversal of a tree ...	Discuss
Given a string (1-d array) , find if there is any sub-sequence ...	Discuss
You're given an array of integers(eg [3,4,7,1,2,9,8]) Find the index of value ...	Discuss
There is an island surrounded by oil mines. You will be given n companies ...	Discuss
Given a linkedlist, write an algorithm to divide the linkedlist ...	Discuss
Given array of length n, having element 0 to n-1 ...	Discuss
Implemented a bounded queue ...	Discuss
Given an array of integers and a number ...	Discuss
Print all paths of a binary tree from root to leaf ...	Discuss
Delete all the nodes from a binary tree that ...	Discuss

Solve	Discussion
Implement a function that returns whether a string made ...	Discuss
Given input format, The first line has the number of employees ...	Discuss
Given two sorted linked lists of integers write an algorithm ...	Discuss
Design a data structure that supports kind of full text search ...	Discuss
Implement a program to reverse the linear linked list ...	Discuss
You are given a double linked list and an array of pointers ...	Discuss
We have 'n' patients and 'm' problems. The problems are of boolean type ...	Discuss
How will you design, and what data structure will you use for a contact list ...	Discuss
Suppose you are supplied with a file containing a list of words like ABC ...	Discuss
Given two (dictionary) words as Strings, determine if they are isomorphic ...	Discuss
Given a set of N numbers [1,N], partition them into 2 disjoint subsets ...	Discuss
N different couple go to cinema with 2N different seats ...	Discuss
You are given a function getNum() that returns ...	Discuss
This was design question ...	Discuss
Implement HashTable in java , especially ...	Discuss
Implement a vector-like data structure from scratch ...	Discuss

Solve	Discussion
A frog has to cross the river from one end to another end ...	Discuss
Design a data structure which could perform ...	Discuss
Given huge database of songs design search data structure and algorithm ...	Discuss
You are given two objects, Student and Course, and there exist ...	Discuss
Write a function that takes two arguments one array of integers that...	Discuss
Design a data structure to keep track of top k elements...	Discuss
Write code to read from a file and build datastructure that helps you ...	Discuss
Amazon has many visitors to its site. And it tracks what pages the customers ...	Discuss
Given a wall, which is made up of two types of bricks (Porus / opaque )...	Discuss
Give a large multi MB byte file in memory ...	Discuss
A single-elimination tournament with 64 teams ...	Discuss
There are numbers in between 0-9999999999 (10-digits) ...	Discuss
Given a catalog of books, with the following attributes ...	Discuss
You are required to collect N numbers from a bag ...	Discuss

DS Practice Question Sets

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