// First include the vector library:
#include <vector>
// The syntax to create a vector looks like this:
std::vector<type> name;
// We can create & initialize "lol" vector with specific values:
std::vector<double> lol = {66.666, -420.69};
// it would look like this: 66.666 | -420.69
// CPP program to initialize a vector like
// an array.
#include <bits/stdc++.h>
using namespace std;
int main()
{
vector<int> vect{ 10, 20, 30 };
for (int x : vect)
cout << x << " ";
return 0;
}