Last element of a set in c++

How to get last element of set in c++

set<int> s = {1,2,3}
auto it = s.end();
it--;
cout<<*it<<"\n"; // This refers to last element of a set

Last element of a set in c++

set<int> st {1,2,3,4};

// rbegin() meand reverse begin, means we will choose the first element
// from the end of the set (start counting from the end)
auto last (st.rbegin()); //get iterator of the first element from the end
cout << *last << endl; //get the value from the iterator (return 4)

// instead we could directly use :
cout << *(st.rbegin()) << endl; // return 4

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