Question

How to remove all elements from a set in C++

Answer 1

#include <iostream>       
#include <iterator>   
#include <set> 
         
using namespace std; 
  
void printSet(set<int> st) {
    for (auto n: st) {
        cout << n << ' ' ; 
    } 
}
  
int main ()
{
    set<int> st;
    
    st.insert(1); 
    st.insert(9); 
    st.insert(7); 
    st.insert(3); 
    st.insert(2); 
  
    printSet(st); 
     
    st.clear();
     
    st.insert(349);
    st.insert(127);
      
    cout << endl;
    printSet(st); 
      
    return 0;
} 
     
     
     
/*
run:
     
1 2 3 7 9 
127 349 
  
*/

 

70+ SQL courses for beginners and professionals