Function SortUnique

util/generic/algorithm.h:307–310

template <class C>
void SortUnique(C& c) {
    Sort(c.begin(), c.end());
    c.erase(Unique(c.begin(), c.end()), c.end());
}

template <class C, class Cmp>
void SortUnique(C& c, Cmp cmp) {