iterator end();                            //until C++ 11
const_iterator end() const;                //until C++ 11
      iterator end() noexcept;              //since C++ 11
const_iterator end() const noexcept;  //since C++ 11

#include <iostream>
#include <set>

using namespace std;

int main ()
{
  set<string> myset = {"Java", "C++", "SQL"};

  // show content:
  for (set<string>::iterator it=myset.begin(); it!=myset.end(); ++it)
    cout << *it<< '\n';

  return 0;
}

C++
Java
SQL

#include <iostream>
#include <set>

using namespace std;

int main()
{
  set<int> c;
  c.insert(5);
  c.insert(2);
  c.insert(4);
  c.insert(1);
  c.insert(0);
  c.insert(0);
  c.insert(9);

  set<int>::iterator i = c.begin();
  while (i != c.end())
    cout << *i++ << " ";
  cout << endl;
}

0 1 2 4 5 9

#include <iostream>
#include <set>
#include <string>
int main()
{
    using namespace std;

      set<string> myset = { "Nikita","Deep","Priya","Suman","Aman" };

 cout<<"Elements of myset are: "<<endl;
    set<string>::const_iterator it; // declare an iterator

    it = myset.begin(); // assign it to the start of the set

    while (it != myset.end()) // while it hasn't reach the end
    {
cout << *it << "\n"; 

// print the value of the element it points to

++it; // and iterate to the next element
    }

    cout << endl;
}

Elements of myset are: 
Aman
Deep
Nikita
Priya
Suman

#include <iostream>
#include <string>
#include <set>


using namespace std;

int main ()
{
    int val;
    set<int> c = {10,20,30,40,50};

    cout<<"Enter value to find: ";
    cin>>val;

    auto result = c.find(val);  

    //find until end of the set elements
    if (result != c.end()) {  
        cout << "Element found: "<< *result; 
        cout << endl;  
    } else {  
        cout << "Element not found." << endl;  
    }  

  return 0;
}

Enter value to find: 60
Element not found.


Enter value to find: 30
Element found: 30