convert psuedo code to C#

Question

for each iteration j
    for each instance Insti
          for each instance Instk
                  if(Instk ? Aj-1)
                   continue;
            else
          add EuclideanDistance(Insti, Instk) to Listi ;
         end
    end
calculate percentage of top N instances in Listi
whose label is different from Insti as ?;
    if ? = d
    Aj = Aj ? Insti;
     end
end
if |AjnAj-1| / Max(|Aj|, |Aj-1|)= e
break;
      end
end
return Aj