How do I test interactive problems assuming that I already wrote an interactor code which can output some data to STDOUT based on input file and the output to STDOUT of the required code for a problem?
example:
guessprm.py is the required code, interactor.py is interactor code and input.txt contains test cases
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There might be some solution. I generally create function (in place of judge).
Would like to listen good methods to do that when we have different codes for judge and user.
This is just about to how to take inputs from a file and get output in a file.
It doesn’t tell anything about how to do interaction.
Can we do interaction using that article ??
What I do is keep running both codes alternatively, untill I get the answer.
Although it won’t be effective when there’s large interaction.
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What I do is make a testcase generator and then copy-paste in stdin manually.
I tried but couldn’t get my two programmes (judge and solution) to interact.
that’s weaving both codes in one. Nice 
approach though. But codechef judge won’t be using that approach. An interacting code with a few test cases seems a logical approach of the judge. Do question setter of interacting problems need to send any such code?
Nice thanks. \hspace{0mm}
they make judge itself. judge is a c++(or any other lang) code itself.
We can apply any algo in judge as well.