How to delete last element from a set in C++

Suppose we have one STL set in C++. There are few elements. We have to delete the last element from that set. So if the elements are like [10, 41, 54, 20, 23, 69, 84, 75], then the set will be like [10 20 23 41 54 69 75 84], and last element is 84. We will see the C++ code to delete last element from set.

Example

 Live Demo

#include<iostream> #include<set> using namespace std; void display(set<int> my_set){    for (auto it = my_set.begin(); it != my_set.end(); ++it)    cout << *it << " "; } int main() {    int arr[] = {10, 41, 54, 20, 23, 69, 84, 75};    int n = sizeof(arr)/sizeof(arr[0]);    set<int> my_set;    for(int i = 0; i<n; i++){       my_set.insert(arr[i]);    }    cout << "Set before delete: ";    display(my_set);    set<int>::iterator it;    it = prev(my_set.end());    my_set.erase(it);    cout << "\nSet after delete: ";    display(my_set); }

Output

Set before delete: 10 20 23 41 54 69 75 84 Set after delete: 10 20 23 41 54 69 75