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Software Engineer In Test Interview Questions


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Implement a binary tree and explain it's function

4 Answers

Binary Search tree is a storage data structure that allows log(n) insertion time, log(n) search, given a balanced binary search tree. The following implementation assumes an integer bst. There's a million implementations. Just look on wikipedia for search and insert algorithms.

Hi Xin Li, A binary tree is not the same as binary search tree.. A binary tree is a tree in which every node has atmost two children nodes. It is a k-ary tree in which k=2. A complete binary tree is a tree in which all nodes have the same depth.

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Describe and code an algorithm that returns the first duplicate character in a string?

7 Answers

Write a method to decide if the given binary tree is a binary search tree or not.

4 Answers

In a given sorted array of integers remove all the duplicates.

6 Answers

how can a particular application be tested apart from testing its functionality

3 Answers

Write code in your favorite programming language that will accept two strings and return true if they are anagrams.

2 Answers

Given a string (understood to be a sentence), reverse the order of the words. "Hello world" becomes "world Hello"

1 Answer

Phone interview 1 : a) Simulate a Queue with stacks ? b)Find repeated occurrence of character in a string ? Phone interview 2 : a) Given a 2D matrix of numbers find the position of number . Constraints of matrix number always in increasing order left to right and top to bottom . b)When should version control be used . And a tricky discreet math problem ?

13 Answers

How would you determine if someone has won a game of tic-tac-toe on a board of any size?

14 Answers

Most of them were expected. Almost all are problem solving questions. 1. Given a BST with following property find the LCA of two given nodes. Property : All children has information about their parents but the parents do not have information about their children nodes. Constraint - no additional space can be used

15 Answers
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