How to cin to a vector

Question

I\'m trying to ask the user to enter numbers that are put into a vector, then using a function call to count the numbers, why is this not working? I am only able to count t

Answer 1

If you know the size of the vector you can do it like this:

#include 
using namespace std;

int main() {
    int n;
    cin >> n;
    vector v(n);
    for (auto &it : v) {
        cin >> it;
    }
}