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Hacker Earth Questions

Top 10 Interviews Techniqes for Campus Interview in IIT NIT BITS for MTech

April 13, 2015 by Dhaval Dave

Campus Interview Questions

Couple of years ago when me and my friends appeared for campus interviews in IITs, NITs and BITs we faced many challenging interview questions like N petrol bunks arranged in a city, Sort Stack … Read More

Filed Under: Adobe Interview Questions, Amazon Interview Question, Flipkart Interview Questions, Hacker Earth Questions, Interview Experience, Microsoft Interview Questions

The Magic HackerEarth Nirvana solutions Hiring Challenge

February 25, 2015 by Dhaval Dave

Navi got a task at school to collect N stones. Each day he can collect only one stone. As N can be a very large number so it could take many days to complete the
… Read More

Filed Under: Hacker Earth Questions, Interview Questions, problem Tagged With: Mathematical

Find the smallest window in a string containing all characters of another string

January 12, 2015 by Dhaval Dave

Given two strings string1 and string2, find the smallest substring in string1 containing all characters of string2 efficiently.For Example:

Input string1: “this is a test string”
Input string2: “tist”

Output string: “t stri”

… Read More

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

Longest Increasing Subsequence

December 22, 2014 by Dhaval Dave

The longest Increasing Subsequence (LIS) problem is to find the length of the longest subsequence of a given sequence such that all elements of the subsequence are sorted in increasing order.For example, length of LIS
… Read More

Filed Under: Amazon Interview Question, Flipkart Interview Questions, Hacker Earth Questions, Interview Questions, Microsoft Interview Questions, problem Tagged With: Array, Dynamic Programming

HackeEarth Flipkart’s Drone

November 24, 2014 by Dhaval Dave

HackeEarth Flipkart’s Drone : After listening to the news of testing of Delivery Drone
But this was only possible if two of the shipping addresses had “V1-type” road connecting them(V1-type roads are the fastest in
… Read More

Filed Under: Flipkart Interview Questions, Hacker Earth Questions, Interview Questions, problem Tagged With: Array

Password Predictor

October 9, 2014 by Dhaval Dave

Danny has a possible list of passwords of Manny’s facebook account. All passwords length is odd. But Danny knows that Manny is a big fan of palindromes. So, his password and reverse of his password
… Read More

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

Find an index i such that Arr [i] = i in array of n distinct integers sorted in ascending order.

August 12, 2014 by Dhaval Dave

Given an array of n distinct integers sorted in ascending order, write a function that returns a Fixed Point in the array such that Arr[i] = i .
If there is any Fixed Point present
… Read More

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

N Petrol bunks or City arranged in circle. You have Fuel and distance between petrol bunks. Is it possible to find starting point so that we can travel all Petrol Bunks

July 11, 2014 by Dhaval Dave

Find the first circular tour that visits all petrol pumps

There are n petrol bunks arranged in circle. Each bunk is separated from the rest by a certain distance. You choose some mode of travel
… Read More

Filed Under: Amazon Interview Question, Array, Flipkart Interview Questions, Hacker Earth Questions, Interview Questions, Microsoft Interview Questions, problem Tagged With: Array

Rectangular chocolate bar Create at least one piece which consists of exactly nTiles tiles

July 10, 2014 by Dhaval Dave

Rectangular chocolate bar Create at least one piece which consists of exactly nTiles tiles.

You have a rectangular chocolate bar that consists of width x height square tiles. You can split it into two rectangular … Read More

Filed Under: Array, Flipkart Interview Questions, Hacker Earth Questions, Interview Questions, problem Tagged With: Array, Mathematical

Given a string, find the first character which is non-repetitive

April 13, 2014 by Dhaval Dave

Given a string, find the first character which is non -repetitive i.e that character must not be present anywhere else in the string.

With two different solutions.

Eg : Input : teeterson      
     Output : r, 
… Read More

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

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