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I m Abdullah Ansari compleated MCA from Jamia Hamdard,i
have appeared the test of IBM on 2 august at oxford college
of engineering Bangalore.waiting for hr round..
This is the first round for IBM.02/08/08
Paper consists of 4 sections
15 questions from matrices(time very less but no negative
marking).
25 questions from series completion section (this section
is very easy but negative marking)
15 questions from aptitude(little bit tough time limit 15
minute negative marking)
4th section is from computer science
(c,c++,operating system,digital electronics ,basic
question..)
result came at 3 o'clock.i was selected...
In interview they asked questions like
1 they asked about final yr project..
2 what are dynamic and static memory location?
3 linked list and array difference between them.
4 what is function ? what is difference betwen function and
inline function?
5 about structure
6 about binary tree, traversal, call by value.
7 storage class and many more basic questions..
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I'm trying to solve this. But I'm not figuring the right solution. Can some one help what the answer is for the question below? You can use as many variables as you need, there are no negative numbers, all numbers are integers. You do not know the size of the integers, they could be infinitely large, so you can't count on truncating at any point. There are NO comparisons allowed, no if statements or anything like that. There are only four operations you can do on a variable. 1) You can set a variable to 0. 2) You can set a variable = another variable. 3) You can increment a variable (only by 1), and it's a post increment. 4) You can loop. So, if you were to say loop(v1) and v1 = 10, your loop would execute 10 times, but the value in v1 wouldn't change so the first line in the loop can change value of v1 without changing the number of times you loop. You need to do 3 things. 1) Write a function that decrements by 1. 2) Write a function that subtracts one variable from another. 3) Write a function that divides one variable by another. 4) See if you can implement all 3 using at most 4 variables. Meaning, you're not making function calls now, you're making macros. And at most you can have 4 variables. The restriction really only applies to divide, the other 2 are easy to do with 4 vars or less. Division on the other hand is dependent on the other 2 functions, so, if subtract requires 3 variables, then divide only has 1 variable left unchanged after a call to subtract. Basically, just make your function calls to decrement and subtract so you pass your vars in by reference, and you can't declare any new variables in a function, what you pass in is all it gets.
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