#include<stdio.h>

#define NOCHMAL 'y'

void datain (int, int[10000][4]);
void dataout (int, int[10000][4]);

int
main (void)
{
  int down, person[10000][4];

  /*choose the size of table required */
  printf ("Please enter the amount of the people required:\n\r");
  scanf ("%d", &down);
  printf ("Amount of people required: %d\n\r", down);
  /*validate user input */
  while ((down <= 0) || (down > 10000))
    {
      printf ("please re-enter the number of people required:\n\r");
      scanf ("%d", &down);
    }

  /*Create table and input data */
  datain (down, person);
  /*print out the table unsorted */
  dataout (down, person);

  return 0;
}

void
datain (int numberofpeople, int person[10000][4])
{
  /*load up person arrays */
  int array1;
  for (array1 = 0; array1 < numberofpeople; array1++)
    {
      printf ("\n\rPlease input the person identification: ");
      scanf ("%d", &person[array1][0]);
      printf ("Please input the person Wage: ");
      scanf ("%d", &person[array1][1]); 
      printf ("Please input the person Sex(0 is male and 1 is female):");
      scanf ("%d", &person[array1][2]);
      /*validate user input */
      while ((person[array1][2] < 0) || (person[array1][2] > 1))
        {
          printf ("please re-enter the sex data\n\r");
          scanf ("%d", &person[array1][2]);
        }

      printf ("Please input the person Age: ");
      scanf ("%d", &person[array1][3]);
      /*validate user input */
      while ((person[array1][3] < 16) || (person[array1][3] > 65))
        {
          printf ("please re-enter the age data\n\r");
          scanf ("%d", &person[array1][3]);
        }
    }
}

void
dataout (int number, int person[10000][4])
{
  int array;
  char nochmal;
  char sort;
  int index, total;

  printf (" \n\r The Unsorted Data:\n");
  printf (" ---------------------\n\r");
  printf ("Personnal ID Wage Sex Age\n\r");
  for (array = 0; array < number; array++)
    {
      printf ("%8d%8d%8d%8d\n\r", person[array][0],
              person[array][1], person[array][2], person[array][3]);
    }
  /*select form of display from user */
  nochmal = NOCHMAL;
  while (nochmal == NOCHMAL)
    {
      /*select display from user */
      printf ("\n\rHow is the data to be sorted ?");
      printf ("\n\rAscending by Person ID,type a");
      printf ("\n\rAscending by Wage, type b");
      printf ("\n\rAscending by Age, type c");
      printf ("\n\rOnly females, type f");
      printf ("\n\rOnly males, type m\n\r");
      scanf (" %c", &sort);
      /* Sort the data */
/*  
        if (sort == 'a')
          if (sort == 'b')
            if (sort == 'c')
              if (sort == 'd')
                if (sort == 'f')
                  if (sort == 'm');
*/

      for (index = 0; index < number; index++)
        for (array = 0; array < number - 1; array++)
          if (person[array][0] > person[array + 1][0])
            {
              total = person[array][0];
              person[array][0] = person[array + 1][0];
              person[array + 1][0] = total;
            }

      for (array = 0; array < number; array++)
        {
          printf ("Personnel ID: %d\t", person[array][0]);
          printf ("Wage: %d\t", person[array][1]);
          printf ("Sex: %d\t", person[array][2]);
          printf ("Age: %d\t\n", person[array][3]);
        }
      /*to resort the data */
      printf ("Would you like to sort the data again Yes = y No = n\n");
      scanf (" %c", &nochmal);
    }
}