//===================================================== file = count1.c =====
//=  Program to count the number of events in an interval of time           =
//===========================================================================
//=  Notes:                                                                 =
//=    1) Input from input file "in.dat" to stdin (see example below)       =
//=        * Input is two columns of reals with no commas                   =
//=        * No comments are allowed in the input file                      =
//=    2) The time interval INTERVAL_TIME is in the #define section         =
//=    3) Output is to stdout                                               =
//=-------------------------------------------------------------------------=
//= Example "in.dat" file:                                                  =
//=                                                                         =
//=  0.01   6                                                               =
//=  0.05   3                                                               =
//=  0.05   4                                                               =
//=  0.03   2                                                               =
//=  0.02   1                                                               =
//=  0.04   4                                                               =
//=  0.06   5                                                               =
//=  0.03   4                                                               =
//=  0.12   3                                                               =
//=  0.04   2                                                               =
//=-------------------------------------------------------------------------=
//= Example output (for above "in.dat" and INTERVAL_TIME = 0.1)             =
//=                                                                         =
//=  & ------------------------------------------- count1.c ----- &         =
//=  9                                                                      =
//=  11                                                                     =
//=  9                                                                      =
//=  0                                                                      =
//=  5                                                                      =
//=  & ---------------------------------------------------------- &         =
//=-------------------------------------------------------------------------=
//=  Build: bcc32 count1.c                                                  =
//=-------------------------------------------------------------------------=
//=  Execute: count1 < in.dat                                               =
//=-------------------------------------------------------------------------=
//=  Author: Kenneth J. Christensen                                         =
//=          University of South Florida                                    =
//=          WWW: http://www.csee.usf.edu/~christen                         =
//=          Email: christen@csee.usf.edu                                   =
//=-------------------------------------------------------------------------=
//=  History: KJC (06/07/02) - Genesis                                      =
//=           KJC (05/30/13) - Modified for integer output                  =
//===========================================================================
//----- Include files -------------------------------------------------------
#include <stdio.h>                 // Needed for printf() and feof()
#include <stdlib.h>                // Needed for exit() and atof()
#include <string.h>                // Needed for strcmp()

//----- Defines -------------------------------------------------------------
#define INTERVAL_TIME  0.10        // Time interval for counting

//===========================================================================
//=  Main program                                                           =
//===========================================================================
void main(void)
{
  double    time_stamp;            // Delta timestamp value of a tuple
  double    sum_time;              // Time sum for this interval
  int       num_bytes;             // Number of bytes of a tuple
  int       sum_bytes;             // Bytes sum for this interval
  char      instring1[1024];       // Input string #1
  char      instring2[1024];       // Input string #2

  // Output a banner
  printf("& ------------------------------------------- count1.c ----- & \n");

  // Compute and output bytes counts
  sum_bytes = sum_time = 0.0;
  while(1)
  {
    // Get time_stamp and num_butes
    scanf("%s  %s \n", instring1, instring2);
    time_stamp = atof(instring1);
    num_bytes = atof(instring2);

    // Compute bytes sums for time interval
    sum_time = sum_time + time_stamp;
    if (sum_time <= INTERVAL_TIME)
    {
      sum_bytes = sum_bytes + num_bytes;
      if (feof(stdin))
      {
        printf("%d \n", sum_bytes);
        break;
      }
    }
    else
    {
      printf("%d \n", sum_bytes);
      sum_bytes = num_bytes;
      sum_time = sum_time - INTERVAL_TIME;
      while (sum_time > INTERVAL_TIME)
      {
        sum_time = sum_time - INTERVAL_TIME;
        printf("0 \n");
      }
      if (feof(stdin)) break;
    }
  }

  // Output closing message
  printf("& ---------------------------------------------------------- & \n");
}