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Q11 In how many ways can you represent a number as a sum of positive integers?

Given an integer n, you have to give the number of ways in which n can be represented as sum of positive integers.

Algorithm  |  Level - 3

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Q12 Palindromic Linked List

Check if a given linked list is palindrome or not

Linked List  |  Level - 3

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Q13 Write an algorithm to find if a tree is binary search tree or not in O(n)

Write an algorithm to find if a tree is binary search tree or not in O(n).

Algorithm  |  Level - 2

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Q14 How to implement a T9 dictionary?

What is the data structure that can be used for implementing a T9 dictionary.

Data structure  |  Level - 3

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Q15

Count the number of unique element in array of numbers in minimum time complexity.

Arrays  |  Level - 3

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Q16 How to implement a queue using two stack?

Use 2 stacks to implement a queue.

Data structure  |  Level - 2

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Q17

Given one unsorted integer array, find out all the unique element in the array.
eg: Input: {23,53,1,3,6,23,1,7,9,53,9} Ouput;{3,6,7}

Arrays  |  Level - 2

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Q18 What is web service?

What is web service?

Web  |  Level - 2

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Q19 Difference between COM and CORBA.

What is the difference between COM and CORBA?

Web  |  Level - 2

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Q20 How does HTTP works?

How does HTTP works?

Web  |  Level - 2

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