set in C++
``` #include <iostream> #include <set> using namespace std; int main() { set<int> s; s.insert(0); s.insert(1); s.insert(0); s.insert(2); s.erase(2); for(auto &i:s) cout << i << ","; } ```
``` #include <iostream> #include <set> using namespace std; int main() { set<int> s; s.insert(0); s.insert(1); s.insert(0); s.insert(2); s.erase(2); for(auto &i:s) cout << i << ","; } ```