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#ifndef MEAN_MARK_H
#define MEAN_MARK_H
#undef SOLVED_3
#define SOLVED_3
namespace Ti
{
template <typename Iter>
double mean_mark(Iter first, Iter last)
{
double result = 0;
unsigned count = 0;
for(; first != last; ++first)
{
result += (*first)->mark();
++count;
}
return (count == 0) ? 0 : result / count;
}
template <typename Iter>
double mean_mark_student(Iter first, Iter last)
{
double result = 0;
unsigned count = 0;
for(; first != last; ++first)
{
if (typeid(*(*first)) != typeid(Student))
continue;
result += (*first)->mark();
++count;
}
return (count == 0) ? 0 : result / count;
}
template <class ForwardIterator>
ForwardIterator remove_greater (ForwardIterator first, ForwardIterator last, int mark)
{
ForwardIterator result = first;
for (; first != last; ++first)
{
if ((*first)->mark() <= mark)
{
*result = *first;
++result;
}
}
return result;
}
}
#endif
/* vim: set et sw=2 ts=2: */
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