What is the time complexity of this algorithm?

Question

Algorithms

Probably a dumb question, but here is the code:

#include <iostream>

using namespace std;

int main(){
  int a, b;
  cin >> a >> b;
  cout << a + b;
}

I understand the time complexity of this algorithm is O(a + b)?

Answer 1

O(1)
If the notion of complexity applies to this code at all