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Interview Process   |   Interview Puzzles / Aptitude
Organization : Google
Position : Software Engineer

Google Interview Process

I applied for the designation of Software Engineer through my university. The process took two weeks and then I was interviewed at Google. Since it was a campus placement, there was one written test and three technical rounds of forty five minutes each.

Round 1 - Written Test
The written test as standard and not much different from the usual stuff. There were 18 questions in total and all of them were based on the basic coding knowledge.

Round 2 - First Technical Interview Round
This is the first technical round and thus you can expect basic coding related problems. Two questions were asked and the round lasted for forty five minutes. One of the problem:
Q1. Approximation algorithm for NP hard problem.

Round 3 - Second Technical Interview Round
The level of difficult was increased. This round also consisted of two technical questions and the time limit was the same as before. This time, the problems were based on data structures. Both of them were based on data structures in fact and they were complicated.

Round 4 - Third Technical Interview Round
This was another difficult technical round. I am surprised I was able to answer them by the end of time. The reason is that they gave me hint while I was stuck in one of the string manipulation related problem.
Q1. How to solve a certain NP hard problem in O(n^2) time complexity.

Then, the offer was made and no negotiations were required/possible.

How to crack Google Interview

I can't reveal all of the actual questions here to help you crack the Google Interview but I can guide you in the right direction supposedly.

Since, I was on campus placement, the process was a bit short for me. Other people can expect 4-5 technical rounds. However the format will remain same I guess. You might have a telephonic interview as well before being called in for the technical rounds.

The written test was simple and I was able to complete all the questions in the given time. Thus if you know the basics, there should not be any difficulty. But that is just a beginning. As the difficult technical rounds sit ahead.

If you want to crack Google Interview, you must study and prepare for questions related with String manipulation, data structures and large scale system designs. Even if you think you might not be able to find solution for a problem, give your best shot as if you are stuck on the right track, they might help you out in moving forwards.

The people are really nice and being interviewed at Google was one of the best interview experience for me. You will get a lot to learn even if you are not selected.

My best wished to all the candidates.

Thanks Anmol for sharing the details of your interview.
Send more details and your personal experiences info@gpuzzles.com
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Water Measurement Riddle

A barman is having a 12 liters jug full of beer. He needs to divide or split that beer into two equal parts. All he has is two empty jugs of capacity 8 liters and 5 liters.

How will he do it using them?

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Tricky Logic Question

A claustrophobic person boards a train that is just about to enter a tunnel.

Which place will be the best for him to sit?

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Induction Brain Teasers

Three college toppers are summoned by the inspecting faculty. To identify the best from them, the faculty takes them into a room and places one hat on each of their heads. Now all of them can see the hats on other’s heads but can’t see his own. There are two colored hats – green and red.

Now the faculty announces that he had made sure that the competition is extremely fair to all three of them. He also gives them a hint that at least one of them is wearing a red hat. Now the first one who is able to deduce his own hat color will be awarded the most intelligent student of all award. After a few minutes, one of them raises his hand and is able to deduce the color correctly.


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Weight Balance Riddle

You can place weights on both side of weighing balance and you need to measure all weights between 1 and 1000. For example if you have weights 1 and 3,now you can measure 1,3 and 4 like earlier case, and also you can measure 2,by placing 3 on one side and 1 on the side which contain the substance to be weighed. So question again is how many minimum weights and of what denominations you need to measure all weights from 1kg to 1000kg.

By Admin
  • Views : 40k+
  • Sol Viewed : 10k+

Riddle 1 - 1 !=3

Can you move four matchsticks to make the equation true?

  • Views : 90k+
  • Sol Viewed : 30k+

Famous Probability Puzzle

This is a famous probability puzzle in which you have to choose the correct answer at random from the four options below.
Can you tell us whats the probability of choosing correct answer in this random manner.

1) 1/4
2) 1/2
3) 1
4) 1/4

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Tough Two Jug Measuring Puzzle

I got two jugs of
A) 11 liter
B) 6 liter

How can I measure exactly 9 liters ?

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Famous 13 Cave Logic Problem

A thief was running from the police after the biggest theft the town saw. He took his guard in one of the thirteen caves arranged in a circle. Each day, the thief moves either to the adjacent cave or stay in the same cave. Two cops goes there daily and have enough time to enter any two of the caves out of them.

How will the cop make sure to catch the thief in minimum number of days and what are the minimum number of days?

  • Views : 80k+
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Logical Interview Problem

Jonathan has three boxes containing milk chocolates and dark chocolates. The problem is that all of them have been labeled incorrectly as follows.
Box1: Dark Chocolates
Box2: Milk Chocolates
Box3: Dark Chocolates and Milk Chocolates

How will he label all the boxes correctly by just opening one box?

  • Views : 40k+
  • Sol Viewed : 10k+

Difficult Brain Twister

A strange tradition is followed in an orthodox and undeveloped village. The chief of the village collects taxes from all the males of the village yearly. But it is the method of taking taxes that is interesting.

The taxes paid in the form of grains and every male should pay equal pounds corresponding to his age. In simpler terms, a man aged 10 years will have to pay 10 pounds of grains and a 20 years old will be paying 20 pounds of grain.

The chief stands on a riser containing 7 different weights next to a large 2 pan scale. As per the interesting custom, the chief can only weigh using three of the seven weights.

In such a scenario, can you calculate what must be the weights of the seven weights each and who is the oldest man the chief can measure using those weights?

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