#include <iostream>
#include <vector>
#include <cstddef>
#include <fstream>
#include <sstream>
#include <stdio.h>
#include <stdlib.h>
#include <stdlib.h>
#include <string.h>
using namespace std;
int strict(char*);
int default_(char*);
int integers(char* );
int str_integer(char* );

int main(int argc,char* argv[])
{
  char* name=argv[1];
  if(argc==2)
    {
      default_(name);
    }
  else if (argc==3)
    {
      char *command=argv[2];
      if(strcmp(command,"--strict")==0)
        {
          strict(name);
        }
      else if(strcmp(command,"--integers-only")==0)
        {
          integers(name);
        }
    }
  else if(argc==4)
    {
      str_integer(name);

    }
}

int default_(char* name)
{
  string input;

  vector<float> numbers;

  int i=0;

  char* end;

  double sum=0,temp=0,big=0,small;

  float number;

  ifstream file;

  size_t found;

  file.open(name);

  if(file.fail())
    {
      exit(1);
    }

  while(file>>input)
    {
      i++;
      number=strtof(input.data(),&end);
      if(number != 0 || (number==0 && input != "0"))
        {
          numbers.push_back(number);
        }
    }
  big=numbers[0];
  small=numbers[0];
  for(int j=0;j<i;j++)
    {
      if (numbers[j]>big)
        {
          big=numbers[j];
        }
      else if(numbers[j]<small)
        {
          small=numbers[j];
        }
      sum+=numbers[j];
    }
  cout<<small<<" "<<big<<" ";   printf("%.2f",sum/i); cout<<endl;
  return 0;
}

int strict(char* name)
{
  string input;

  vector<float> numbers;

  int i=0;

  char* end;

  float number,sum=0,temp=0,big=0,small;

  ifstream file;

  size_t found;

  file.open(name);

  if(file.fail())

    {
      exit(1);
    }

  while(file>>input)
    {
      i++;
      number=strtof(input.data(), &end);
      found=input.find_first_not_of("0123456789.");
      if(found != std::string::npos)
        {
          cerr<<"ERR: PROVIDE ONLY NUMBERS"<<endl;
          return -1;
        }
      else
        {
          numbers.push_back(number);
        }
    }
  big=numbers[0];
  small=numbers[0];
  for(int j=0;j<i;j++)
    {
      if (numbers[j]>big)
        {
          big=numbers[j];
        }
      else if(numbers[j]<small)
        {
          small=numbers[j];
        }
      sum+=numbers[j];
    }
  cout<<small<<" "<<big<<" ";   printf("%.2f",sum/i); cout<<endl;
  return 0;
}

int integers(char* name)
{
  string input;
  vector<int> numbers;


  int i=0;

  char* end;

  float number,sum=0,temp=0,big=0,small;

  ifstream file;

  file.open(name);

  if(file.fail())

    {

      exit(1);

    }
  while(file>>input)
    {
      i++;
      number=strtol(input.data(),&end,10);
      if(number != 0 || (number==0 && input != "0"))
        {
          numbers.push_back(number);
        }
    }
  big=numbers[0];
  small=numbers[0];
  for(int j=0;j<i;j++)
    {
      if (numbers[j]>big)
        {
          big=numbers[j];
        }
      else if(numbers[j]<small)
        {
          small=numbers[j];
        }
      sum+=numbers[j];
    }
  cout<<small<<" "<<big<<" ";   printf("%.2f",sum/i); cout<<endl;
  return 0;
}
int str_integer(char* name)
{

  string input;
  vector<int> numbers;


  int i=0;

  char* end;

  float number,sum=0,temp=0,big=0,small;

  ifstream file;

  file.open(name);

  if(file.fail())

    {

      exit(1);

    }
  while(file>>input)
    {
      i++;
      number=strtof(input.data(),&end);
      if ((number-(int)number != 0) && (number != 0 || (number==0 && input != "0")))
        {
          cout<< "ERR: PROVIDE ONLY INTEGERS"<<endl;
          return -1;
        }
      numbers.push_back(number);
    }
  big=numbers[0];
  small=numbers[0];
  for(int j=0;j<i;j++)
    {
      if (numbers[j]>big)
        {
          big=numbers[j];
        }
      else if(numbers[j]<small)
        {
          small=numbers[j];
        }
      sum+=numbers[j];
    }
  cout<<small<<" "<<big<<" ";   printf("%.2f",sum/i); cout<<endl;
  return 0;
}