# SapientNitro Interview Experience | Set 3 (On-Campus)

• Difficulty Level : Easy
• Last Updated : 29 Dec, 2015

First Round : Online Round

Second Round : Tech + HR interview

First Round :

Online test of basic aptitude questions and technical questions

Second Round:
Technical:
There were puzzles and programs

1. Given 10 coins, create as maximum number of lines consisting of 4 coins each. (Answer : make a star figure )

2. Two trains are on the same track a distance 100 km apart heading towards one another, each at a speed of 50 km/h. A fly starting out at the front of one train, flies towards the other at a speed of 75 km/h. Upon reaching the other train, the fly turns around and continues towards the first train. How many kilometers does the fly travel before getting squashed in the collision of the two trains? (easy but tricky) for solution check here : http://mathworld.wolfram.com/TwoTrainsPuzzle.html and some more puzzles Practice them.

3. write a program to pairwise swap nodes in a linked list (not their data)(check boundary condition properly).

4. program to find height of a binary tree.

HR:

1. Introduction.

2. Project and my role.

I Hope my experience will help you, and Best of Luck from my side. ðŸ™‚

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