ordered_setmaintains sorted unique elements in ascending order usinglesscomparison. ordered_multisetallows duplicates using aless_equalcomparison, preserving the sorted order. Fucntions In addition to normal set operations, the ordered set supports: order_of_key(k): Gives the count of elements smaller...
An example of a partially ordered set (poset) is the set of points(x, y)in the Cartesian plane with the operator(x1, y1) ≤ (x2, y2)iffx1 ≤ x2andy1 ≤ y2(e.g. NCPC 2007 problem). We define achainCto be a subset ofSsuch that the elements ofCcan be la...
tree_order_statistics_node_update>;template<typenameT>classordered_multiset:publicoms<T>{public:oms<T>::iterator find(T k){intorder=this->order_of_key(k);returnthis->find_by_order(order);}template<typenameU>voiderase(U it){//erases key where 'it' is pointing currentlyoms<T>::erase(it...