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Find Pythagorean Triplets in an array in O(N)

March 27, 2014 by Dhaval Dave

Find Pythagorean Triplets in an array

We have an array in which random integers are there. we need to find Pythagorean triplets.
which solves equation a^2 + b^2 = c^2.
Method 1 : Brute Force
… Read More

Filed Under: Amazon Interview Question, Flipkart Interview Questions, Interview Questions, problem Tagged With: Mathematical

Length of the longest substring without repeating characters

March 26, 2014 by Dhaval Dave

Length of the longest substring without repeating characters


Method 1 (Brute Force Method)
We can consider all substrings.
One by one and check for each substring whether it contains all unique characters or not. 

There

… Read More

Filed Under: Amazon Interview Question, Hacker Earth Questions, Interview Questions, problem Tagged With: string

Inorder and Preorder traversals of a Binary Tree given. Output the Postorder traversal of it.

March 25, 2014 by Dhaval Dave

Generate Postorder traversal of Tree from Inorder and Preorder traversal of tree without generating Tree.

Input:
In-order traversal in[] = {4, 2, 5, 1, 3, 6}
Pre-order traversal pre[] = {1, 2, 4, 5, 3, 
… Read More

Filed Under: Adobe Interview Questions, Interview Questions, Microsoft Interview Questions, problem Tagged With: Binary Tree, tree

Amazon Interview On-Campus For Internship – 1

March 25, 2014 by Dhaval Dave

 Amazon Interview On-Campus For Internship – 1

Online Round Coding Question:
Q1. Given a float number 7.64, convert it into the string WITHOUT using any inbuilt function/library.
for eg:
input
float no.: 7.64
output
string:

… Read More

Filed Under: Amazon Interview Question, Interview Experience Tagged With: Amazon

Given a float number convert it into the string WITHOUT using any inbuilt Function

March 25, 2014 by Dhaval Dave

Convert a floating point number to string

Given a float number convert it into the string WITHOUT using any inbuilt Function

Method 1:

class Float2String 
{ 
   public static void main(String[] args) 
   { 
      float f=7.64f; 
      String 
… Read More

Filed Under: Amazon Interview Question, problem Tagged With: string

Get K Max and Delete K Max in stream of incoming integers

March 25, 2014 by Dhaval Dave

Get K Max and Delete K Max in stream of Incoming Integers

Solution 1 : Using Min Heap
Algorithm :

1) Keep a Min & Max Heap of K size
2) Store first K elements 
… Read More

Filed Under: Adobe Interview Questions, Amazon Interview Question, Interview Questions, Microsoft Interview Questions, problem Tagged With: Linked List, Max Heap, Min Heap

building with N steps, we can take 1,2,3 steps calculate number of ways to reach at top of building

March 24, 2014 by Dhaval Dave

Given n stairs, how many number of ways can you climb if u use either 1, 2 or 3 at a time?

When you find any difficult problem first step is to reduce it to
… Read More

Filed Under: Adobe Interview Questions, problem, Puzzle Tagged With: Mathematical

write a c program that given a set a of n numbers and another number x determines whether or not there exist two elements in s whose sum is exactly x

March 24, 2014 by Dhaval Dave

Given an array A[] and a number x, check for pair in A[] with sum as x

Write a C program that, given an array A[] of n numbers and another number x, determines whether
… Read More

Filed Under: Adobe Interview Questions, Flipkart Interview Questions, Interview Questions, problem Tagged With: Array, Sorting

strtok()

March 21, 2014 by Dhaval Dave

Function Strtok

char * strtok ( char * str, const char * delimiters );
What it does : Split string into tokens
A sequence of calls to this function split str into tokens,
which are

… Read More

Filed Under: problem Tagged With: Array, string

ADOBE Aptitude C Language Test

March 21, 2014 by Dhaval Dave

ADOBE Aptitude C Language Written Test

Section 1 : Adobe Aptitude .
Section 2 : Adobe C Language and WAP.
Adobe Aptitude Questions

Before Starting to prepare for Aptitude and C language test MOST IMPORTANT TO READ   is Adobe Interview Experience
… Read More

Filed Under: Adobe Interview Questions Tagged With: c

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