#include "Vector.h"
#include <iostream>
#include <algorithm>
using namespace std;

void print(const Vector<Vector<int>> arr)
{
  int N=arr.size();
  for(int i=0;i<N;++i)
  {
    cout<<"arr["<<i<<"]:";
    for(int j=0;j<arr[i].size();++j)
      cout<<" "<<arr[i][j];
    
    cout<<endl;
  }
}

class CompareVector
{
public:
  bool operator()(const Vector<int>& lhs, const Vector<int>& rhs)const
  {return lhs.size()<rhs.size();}
};

int main()
{
  const int N=20;
  Vector<Vector<int>> arr(N);
  Vector<int> v;

  for(int i=N-1;i>0;--i)
  {
    v.push_back(i);
    arr[i]=v;
  }

  print(arr);
  
  clock_t start=clock();
  std::sort(begin(arr),end(arr),CompareVector{});
  clock_t end=clock();
  cout<<"Sorting time: "<<(end-start)<<endl;

  print(arr);

  return 0;
}