This submission is migrated from previous version of oj.uz, which used different machine for grading. This submission may have different result if resubmitted.
#include "grader.h"
int HC(int N){
int l=1,r=N;
int pivot=1;
while(l<r){
Guess(pivot);
int res=Guess((l+r)/2);
if(res==0){
return (pivot+((l+r)/2))/2;
}
else if(res==-1){
r=((l+r)/2);
}
else if(res==1){
l=((l+r)/2);
}
}
return ((pivot+l)/2);
}
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