text: #include "vec.h"
  #include<vector>
  #include<iostream>
  
  using std::cout;
  using std::vector;
  
  int main() 
  {
  	vector<int> nums;
  
  	cout<<"Size of nums: "<<nums.size()<<"\n";
  	cout<<"Capacity of nums: "<<nums.capacity()<<"\n";
  	cout<<"Max size of nums: "<<nums.max_size()<<"\n";
  	nums.push_back(15);
  	cout<<"Capacity of nums: "<<nums.capacity()<<"\n\n";
  	
  	vector<int> nums2(10, 5);
  
  	for(auto n: nums)
  	{
  		cout<<n<<"\n";
  	}
  
  	cout<<nums[0]<<"\n";
  	nums[0] = 20;
  	cout<<nums[0]<<"\n";
  
  	return 0;
  }