1d vector c++ size code example
Example 1: how to create a vector in c++
// 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
Example 2: declare vector of size n in c++
#include <vector>
auto n = 20
// create a vector with n=20 integer elements
std::vector<int> arr(n);