#include<iostream>
#include<iomanip>
#include<fstream>
#include<string>

using namespace std;

int main(){
  
  ////////////////////////////////////////////////////
  // declare variables we are going to need
  // lots of these, since we have 5 items and 3 sizes
  // initialize to zero, since we will be keeping count

  //clams
  int smallclams = 0;
  int medclams = 0;
  int largeclams = 0;

  //urchins
  int smallurchins = 0;
  int medurchins = 0;
  int largeurchins = 0;

  //worms
  int smallworms = 0;
  int medworms = 0;
  int largeworms = 0;

  //snails
  int smallsnails = 0;
  int medsnails = 0;
  int largesnails = 0;  

  //abalones
  int smallabalones = 0;
  int medabalones = 0;
  int largeabalones = 0;  

  //mussels
  int smallmussels = 0;
  int medmussels = 0;
  int largemussels = 0;

  //unknown
  int smallunknown = 0;
  int medunknown = 0;
  int largeunknown = 0;

  // need variables to hold the input for each line
  char observer;
  char item;
  int size;

  // a counter for which line we are on for error reporting
  int counter = 0;

  // need the file objects too
  ifstream inputfile;
  ofstream outputfile;
  
  // and names for the files
  string inputfilename;
  string outputfilename;

  ////////////////////////////////////////////////////
  // Give the user an idea of what is happening
  
  cout << "This program will process observation data files from" << endl;
  cout << "sea otter feeding observations at Elkhorn Slough." << endl << endl;

  ////////////////////////////////////////////////////
  // get the file names to use, and make sure the files open
  // correctly

  // get a name to use for opening the input file
  cout << "Please enter the name of the file to use for input: ";
  getline(cin, inputfilename);

  // open the input file and make sure it happened correctly
  // notice that we have to conver to C-style strings
  inputfile.open(inputfilename.c_str());
  if (!inputfile){
    cerr<< "Unable to open input file." << endl;
    exit(1);
  }

  // get a name to use for opening the output file
  cout << "Please enter the name of the file to use for output: ";
  getline(cin, outputfilename);

  // open the output file and make it it was ok
  outputfile.open(outputfilename.c_str());
  if (!outputfile){
    cerr<< "Unable to open output file. How odd." << endl;
    exit(1);
  }

  cout << endl << endl;

  ////////////////////////////////////////////////
  // while there are still data elements coming in,
  // sort them by item and size
  // each time, add to the total for that item,and size

  // start reading items from the file
  inputfile >> observer >> item >> size;
  counter++;

  while (inputfile){
    switch(item){
    case 'c':
    case 'C':
      switch(size){
      case 1:
	smallclams++;
	break;
      case 2:
	medclams++;
	break;
      case 3:
	largeclams++;
	break;
      default:
	cerr << "Error in size code in line " << counter << endl;      
      }// end switch(size)
      break;
    case 'u':
    case 'U':
      switch(size){
      case 1:
	smallurchins++;
	break;
      case 2:
	medurchins++;
	break;
      case 3:
	largeurchins++;
	break;
      default:
	cerr << "Error in size code in line " << counter << endl;      
      }// end switch(size)
      break;
    case 'w':
    case 'W':
      switch(size){
      case 1:
	smallworms++;
	break;
      case 2:
	medworms++;
	break;
      case 3:
	largeworms++;
	break;
      default:
	cerr << "Error in size code in line " << counter << endl;      
      }// end switch(size)
      break;
    case 's':
    case 'S':
      switch(size){
      case 1:
	smallsnails++;
	break;
      case 2:
	medsnails++;
	break;
      case 3:
	largesnails++;
	break;
      default:
	cerr << "Error in size code in line " << counter << endl;      
      }// end switch(size)
      break;
    case 'a':
    case 'A':
      switch(size){
      case 1:
	smallabalones++;
	break;
      case 2:
	medabalones++;
	break;
      case 3:
	largeabalones++;
	break;
      default:
	cerr << "Error in size code in line " << counter << endl;      
      }// end switch(size)
      break;
    case 'm':
    case 'M':
      switch(size){
      case 1:
	smallmussels++;
	break;
      case 2:
	medmussels++;
	break;
      case 3:
	largemussels++;
	break;
      default:
	cerr << "Error in size code in line " << counter << endl;      
      }// end switch(size)
      break;
    case '?':
      switch(size){
      case 1:
	smallunknown++;
	break;
      case 2:
	medunknown++;
	break;
      case 3:
	largeunknown++;
	break;
      default:
	cerr << "Error in size code in line " << counter << endl;      
      }// end switch(size)

      break;

    default:
      cerr << "Error in item code in line " << counter << endl;      
    } // end switch(item)

    // get the next line ready
    inputfile >> observer >> item >> size;
    counter++;

  } // end while(inputfile)


  ////////////////////////////
  // now output things nicely to the screen

  cout << endl << endl;

  cout << "          " << setw(10) << "Small" << setw(10) << "Medium" 
       << setw(10) << "Large" << endl;

  cout << setw(10) << "Clams" << setw(10) << smallclams << setw(10) 
       << medclams << setw(10) << largeclams << endl;

  cout << setw(10) << "Urchins" << setw(10) << smallurchins << setw(10) 
       << medurchins << setw(10) << largeurchins << endl;

  cout << setw(10) << "Worms" << setw(10) << smallworms << setw(10) 
       << medworms << setw(10) << largeworms << endl;

  cout << setw(10) << "Snails" << setw(10) << smallsnails << setw(10) 
       << medsnails << setw(10) << largesnails << endl;

  cout << setw(10) << "Abalones" << setw(10) << smallabalones << setw(10) 
       << medabalones << setw(10) << largeabalones << endl;

  cout << setw(10) << "Mussels" << setw(10) << smallmussels << setw(10) 
       << medmussels << setw(10) << largemussels << endl;

  cout << setw(10) << "Unknown" << setw(10) << smallunknown << setw(10) 
       << medunknown << setw(10) << largeunknown << endl;

  ////////////////////////////
  // and now output to the file

  outputfile << "          " << setw(10) << "Small" << setw(10) << "Medium" 
       << setw(10) << "Large" << endl;

  outputfile << setw(10) << "Clams" << setw(10) << smallclams << setw(10) 
       << medclams << setw(10) << largeclams << endl;

  outputfile << setw(10) << "Urchins" << setw(10) << smallurchins << setw(10) 
       << medurchins << setw(10) << largeurchins << endl;

  outputfile << setw(10) << "Worms" << setw(10) << smallworms << setw(10) 
       << medworms << setw(10) << largeworms << endl;

  outputfile << setw(10) << "Snails" << setw(10) << smallsnails << setw(10) 
       << medsnails << setw(10) << largesnails << endl;

  outputfile << setw(10) << "Abalones" << setw(10) << smallabalones << setw(10) 
       << medabalones << setw(10) << largeabalones << endl;

  outputfile << setw(10) << "Mussels" << setw(10) << smallmussels << setw(10) 
       << medmussels << setw(10) << largemussels << endl;

  outputfile << setw(10) << "Unknown" << setw(10) << smallunknown << setw(10) 
       << medunknown << setw(10) << largeunknown << endl;

}