Programmer analyst Interview Questions

You are suppose to eat 28 choclate and for every 3 wrapper u get 1 choclate free? How many minimum chcolate you are suppose to eat ? Ans. 19

What is significance of 1st January 1960 in SAS? Ans. SAS stores everything in form of numbers and considers 1-1-1960 as base date

There are two ways of doing quantitative estimates to problems like "how many bricks in the Great Wall" or "how many tennis balls in the United States?". In this case, let's use cars in a particular city. 1. Top-down. Take the population of the city. Countries and/or states often have car ownership records, whoever is the registration authority. In the US, you would use the State DMV, but the US Dept. of Transportation also has that. You would then apply a ratio to the population of the city. You would then adjust the resulting number by demographics. Compare the cities demographics compared to the "average city" in the city/state. For example, cities tend to have younger, richer population. There may be other factors like the antiquated road infrastructure (e.g. Rome), extremely high cost of living/car ownership (e.g. New York City) or car taxes (e.g. Singapore). 2. Bottoms-up. Sometimes you can collect the data manually. Usually, this type of estimate works only were data integrity is good and available. Also, you usually have to do a reality check against a top-down guesstimate anyways.

wrote a simple program

#chse

#chse

I explained Class,objects,Data Abstraction, Encapsulation,polymophisum, and all with real time example. I felt he didnt expect more about what he asked explained, He expected how we explain things, the attitude and communication, the clarity of explaining things are more important.

overall a good and easy interview process.

poda

illaya thalapathy vijay vazgaaaaaaaaaa. thevedia magan ajithhhhhhhhhhhhhhhhh

Was only able to answer this using a stack which was taking O(n) as space complexity. Enough time was provided to think.

Can we reverse link list???

yes, y cant? 1->2->3->4->NULL when reversed 4->3->2->1->NULL

It can be done by using oracle function LEAD and LAG.

I'd go with isnull/coalesce since it's talking about columns, lead lag functions are row based equivalents.

Nothing

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