Writing Interactors and Checkers on Codechef

I’m having trouble writing interactors on codechef platform. Can anyone who has written an interactor for a codechef problem show a sample of an interactor? Thanks.

UPD : I’m also facing problems on writing a working checker.

UPD : For writing an interactor, I used #include “spoj_interactive.h”, but even including this header throws errors about some variables being already defined.

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What is an interactor?

Look at the interactive problems. You need to write a program (for the judge side) that can read the participant’s input and output accordingly.

Oh like the RESTPERM at the last lunchtime.

Yes, that’s one example of an interactive problem.

I’ve been meeting with thousands of people who are writing terms checkers. Since i attached with KingCitation there is a number of good people i worked and of course with great skills they are performing their writing services or many other jobs. So this is a big responsibility to be a checker at any company and you have to work very deep.