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Microsoft Interview Question for Software Engineer / Developers


Country: India
Interview Type: Written Test



Comment hidden because of low score. Click to expand.
3
of 3 vote

In each of the three lines, a variable (i or j) is referenced more than once. As there are no sequence points in between such instructions, the behavior is undefined.

Read this for further clarification about Sequence points in C/C++: c-faq.com/expr/seqpoints.html

- Monish October 14, 2011 | Flag Reply
Comment hidden because of low score. Click to expand.
0
of 0 vote

The evaluation happens from Right to left for the statement 2 and 3. Hence the result is 9 for both. Not 8 as mentioned by you.

- Rajan.Munuswamy October 07, 2011 | Flag Reply
Comment hidden because of low score. Click to expand.
0
of 0 vote

@rajan
THe output for 3 statement is 8 and not 9. I ran it on codepad

- Swap October 07, 2011 | Flag Reply
Comment hidden because of low score. Click to expand.
0
of 0 votes

This code causes undefined behavior (so what will happen can be compiler-specific)

- eugene.yarovoi October 09, 2011 | Flag
Comment hidden because of low score. Click to expand.
0
of 0 votes

yes the ans would be 8 if you remove the 3rd comment..
first the value of i will be incremented (as it is pre increment)then
i=10-10+4+4 wud be evaluated and finally the post increment operation(j++)takes place twice

- shivani October 09, 2011 | Flag
Comment hidden because of low score. Click to expand.
0
of 0 votes

after evaluating 3rd statement post increment operation should take place for i too. so it should result in 9 then how 8?

- Anonymous October 11, 2011 | Flag
Comment hidden because of low score. Click to expand.
0
of 0 votes

Tried both 2 and 3. Both results are 8 as per VS C++.

- Sidh October 25, 2011 | Flag
Comment hidden because of low score. Click to expand.
0
of 0 vote

1st comment gives 0
2nd comment gives 3
3rd comment gives 9

- abc October 27, 2011 | Flag Reply
Comment hidden because of low score. Click to expand.
0
of 0 votes

This one is correct

- Anonymous November 04, 2011 | Flag


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