cpp-lab/STLset.cpp at main · Dev-Arijit/cpp-lab · GitHub

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#include<iostream>
#include<set>
using namespace std;

int main(int argc, char const *argv[])
{
    set<int>s;
    s.insert(5);
    s.insert(5);
    s.insert(5);
    s.insert(5);
    s.insert(1);
    s.insert(6);
    s.insert(6);
    s.insert(6);
    s.insert(0);
    s.insert(0);
    s.insert(0);

    for(auto i: s){
        cout << i << " ";

    }cout << endl;
    set<int> :: iterator it = s.begin();
    it++;
    s.erase(it);
    for(auto i: s){
        cout << i << " ";

    }cout << endl;

    cout << "5 id present or not " << s.count(5) << endl;

    set<int> :: iterator itr = s.find(5);
    for(auto it = itr; it != s.end(); it++){
        cout << *it << " ";
    }cout << endl;

    return 0;
}