Auto in C++

 // C++ program to demonstrate that we can use auto to

// save time when creating iterators

#include <bits/stdc++.h>

using namespace std;

int main()

{

// Create a set of strings

set<string> st;

st.insert({ "geeks", "for", "geeks", "org" });

// 'it' evaluates to iterator to set of string

// type automatically

for (auto it = st.begin(); it != st.end(); it++)

cout << *it << " ";

return 0;

};