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  1. #include <iostream>
  2. using namespace std;
  3.  
  4. class Set
  5.     {
  6. private:
  7.     struct Node
  8.     {
  9.         int val;
  10.         Node* link;
  11.     };
  12.  
  13.     Node *cons(int x, Node *p);
  14.     Node *list;
  15.  
  16.  
  17. public:
  18.     Set() {list = NULL;}
  19.     bool isEmpty() const;
  20.     int size() const;
  21.     bool member (int x) const;
  22.     bool insert (int x);
  23.     bool remove (int x);
  24.     void print() const;
  25.     const Set operator+(const Set &otherSet)const;
  26.     const Set operator*(const Set &otherSet)const;
  27.     Node* getSet()const{return list;}
  28.     void setList(Node *list);
  29.     friend ostream& operator <<(ostream& outputStream, const Set &set);
  30.     };
  31.  
  32.     ostream& operator <<(ostream& outputStream, const Set &set)
  33.     {
  34.               Set::Node *p;
  35.               p = set.list;
  36.               outputStream << '{';
  37.               while(p->link != NULL)
  38.               {
  39.                 outputStream << p->val;
  40.                 p = p->link;
  41.               }
  42.               outputStream << '}';
  43.               return outputStream;
  44.     }
  45.  
  46. int main() {
  47.     return 0;
  48. }
Success #stdin #stdout 0.01s 2676KB
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stdout 
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https://ideone.com/TeWROz
language:
C++ (gcc 8.3)
created:
12 years ago
visibility:
public

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