how vector works in c++ code example

Example 1: how to make a vector in c++

#include <vector>

using namespace std;

int main(){
  vector<int> v;
  //vector<type> name
  
  return 0;
}

Example 2: how to use vectors c++

#include <iostream>
#include <vector>
using namespace std;

int main() {
  //vector element size
  const int size = 4; 
  //vector with int data type
  //all elements are equal to 4
  vector<int> myVect (size, 4);

  for (int i=0; i<size; i++) {
    cout << "Vector index(" << i <<") is: "<< myVect[i] << endl; 
  }
  return 0;
}