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Interview Process   |   Interview Puzzles / Aptitude
Organization : Mindfire Solutions
Position : Software Engineer

Mindfire Solutions Interview Process

I applied online for the position of Software Engineer at Mindfire Solutions. A seemingly early reply from the company was received by me i.e. only a week after I applied and I was called for the interviews.

Round 1 - Written test
The written test was the longest I have ever attended. Most of the places, the test is either an hour or at most a couple of hours long. But here, it was three hours long and thus it was really tiring. The test was based on aptitude questions, language skills, IQ related problems and reasoning skills along with basic programming skills. The aptitude questions and the programming questions were the easiest. Language skills test may depend from person to person but IQ based questions were moderately difficult.

Round 2 - Technical Round
To my surprise, the technical round was even lengthier than the written test. It was a whopping four hours long and by the end of it I was literally exhausted. But let me tell you what happened in between. The questions asked were pretty long (most of them). It was based on the overall understanding of C, C++ and Java and their implementation. Beware of the fact that you will have to do the coding on a paper and thus you must be quite sound with the languages.
Q1. Convert the user's input digit into words like 13 = thirteen. Range is 0-99.
Q2. Differentiate between document ready and anonymous function in JavaScript.
Q3. Questions regarding C string handling and creating a relational model DBMS for specified requirement.

Round 3 - HR Interview
The fact that the previous rounds are so lengthy will have effect on this HR interview for sure. It happened with me. May be they have designed it that way. I was completely exhausted when this round started. The questions were basic twisted HR questions which you can browse through in any of the online site dedicated for the same. But it is your patience and confidence that is to be tested in this round. It was not as I had thought but I think I did a decent job as I was given the offer afterwards.

How to crack (get into) Mindfire Solutions Interview

The foremost thing if you are appearing in the Mindfire Solutions interview is that you must go with a lot of patience. That is the thing that will be helping you the most. If you are new to interviews, you need it more. The rounds are pretty long and exhausting.

For the written test, you need not prepare if you have a fair aptitude skills. It was nothing too difficult to solve and you can easily complete the test in the given time. The problem is the technical round. The coding questions will be lengthy but the other questions are from the basic area so not to be worried about.

The HR questions were basic but since you have spent much time already in the interview rounds before, you might be losing that confidence you had in the beginning of the day. So watch out. Anyways, my best wishes for all the candidates.

Thanks Anmol for sharing the details of your interview.
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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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Let us say that a table tennis tournament was going on with knock out terms which means the one who loses the match is out of the tournament. 100 players took part in that tournament.

How many matches were played?

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Awesome Probability Logic Riddle

You need to divide 50 marbles(25-red and 25-blue) into two boxes such that the probability of picking red marble is maximized.

Following conditions need to hold true :
1. None of box is empty
2. All the marbles must be in one of two boxes.

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Hard Logic Statement Riddle

There are a hundred statements.
1st person says: At least one of the statements is incorrect.
2nd person says: At least two of the statements is incorrect.
3rd person says: At least three of the statements are incorrect.
4th person says: At least four of the statements are incorrect.
100th person says: At least a hundred of the statements are incorrect.

Now analyze all the statements and find out how many of them are incorrect and how many are true?

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Hard Logic Puzzle

A great meeting is held by a great logician where all the other logicians are called upon. The master logician takes them in a room and makes them sit in circle. A hat is placed on each of their heads. Now all of them can see the color of hats others are wearing but can’t see his own. They are told that there different colors of hats.

The master logician explains that a bell will be rung at regular intervals and the moment when a logician knows the color of his hat, he will leave on the next bell. If anyone leaves at the wrong bell, he will be disqualified and sent home.

All of them are assured of one thing that the puzzle will not be impossible for anyone of them. How will they manage the situation?

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Famous Water Jug Problem

You live in Dubai and had an infinite supply of oil and a 5 liters and 3 liters jar,
how would you measure exactly 4 liters (of-course in minimum numbers of step) ?

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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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Fake Coin Brain Teaser

In front of you, there are 9 coins. They all look absolutely identical, but one of the coins is fake. However, you know that the fake coin is lighter than the rest, and in front of you is a balance scale. What is the least number of weightings you can use to find the counterfeit coin?

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Popular Logical Brain Teaser

A couple had to take shelter in a hotel for they could not proceed their journey in the rain. Having nothing to do at all, they started playing cards. Suddenly there was a short circuit and the lights went off. The husband inverted the position of 15 cards in the deck (52 cards normal deck) and shuffled the deck.

Now he asked his wife to divide the deck into two different piles which may not be equal but both of them should have equal number of cards facing up. There was no source of light in the room and the wife was unable to see the cards.

For a certain amount of time, she thought and then divided the cards in two piles. To the husband’s astonishment, both of the piles had equal number of cards facing up.

How did she do it?

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Logic Fruits Riddle

There is a box full of fruits,
all but two are grapes,
all but two are apples,
and all but two are oranges.

How many fruits are in the box ?

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