check if value exists in set c 2b 2b

1#include <iostream>
2#include <unordered_set>
3using namespace std;
4 
5int main()
6{
7    std::unordered_set<int> s = { 1, 2, 3, 4, 5 };
8    int key = 3;
9 
10    if (s.find(key) != s.end()) {
11        std::cout << "Element is present in the set" << std::endl;
12    }
13    else {
14        std::cout << "Element not found" << std::endl;
15    }
16 
17    return 0;
18}