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I may have just bombed a C++ technical phone interview. The interviewer asked mostly about data structures and I was able to go into detail about each of the data structures he asked about. Score one for me I'm thinking. Wrong. Then he asks to join me on a collaboration website where he can see what I am typing. This was the same process as interview #1 which went well, not perfect, but well. So the question was:

How do you reverse a linked list?

he gave a function prototype similar to

Node *reverse(Node *head)

I struggled with this for about 10-15 minutes until the hour was up. I was able to get the general idea across but was not able to reverse the link list.

My question is that after remembering the answer post interview do I mention this in the thank you letter, if I even should write one?

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closed as off topic by gnat, maple_shaft Jul 2 '12 at 2:09

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this can be generalized to workplace.SE –  ratchet freak Jun 29 '12 at 2:34
    
what have you got to lose? –  ClintNash Jun 29 '12 at 3:03
    
I do not think it should be transfered to workplace.SE but if you all feel so than I must agree. I believe though that the question is distinct from a generalization by the technical nature of c++. –  Jacob Jun 29 '12 at 3:44
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The C++, even the fact it was a programming position, is basically irrelevant. The real question seems to be: "I got a question wrong in an competency test interview - should I correct this in a thank you letter?" –  Baqueta Jun 29 '12 at 7:56
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1 Answer

ALWAYS send a thank you letter. E-mail vs. postal mail is a different debate, but always send a thank you note. You should send one even if you know you bombed the interview.

As far as mentioning the specific programming mistake, I wouldn't bother. The interviewer has already formed their opinion and showing that you could find / create the correct answer after the fact won't change their opinion.

You should tone down the enthusiasm of your thank you letter if you know you made a offer-killing mistake. At best, you can apologize for freezing up during the pressure of the interview and suggest that you would appreciate another whiteboard session. That might get you another chance to demonstrate your coding skills, and bring you back into possible consideration for the position.

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