Thread: compare to pervious values

A better indentation style would help.
Indentation style - Wikipedia

Like so

Code:

/*  Purpose of this program: Analytics of clicking on a web-based
*/
#include <stdio.h>

int main()
{
  int days;                     /* with days++ in looping to count the input days */
  int daysPeriod;               /* Input the days are needed to analytics */
  int highest;                  /* Highest value  */
  int lowest;                   /*Lowest value */
  int more500;                  /* Click more than 500 */
  int click;                    /* number of click each loop */
  int sumClick;                 /* Total click value */
  int twice;                    /* count the clicks that more than twice for previouse day */
  int currentday, hold;

  /*initialize vlaue */
  click = 0;
  highest = 0;
  lowest = 2.e2;                /* let the lowest to be max value for easy to compare the input value. */
  twice = 0;
  hold = 0;
  currentday = 0;
  sumClick = 0;
  days = 1;

  /* Read how many days are need to analytis */
  printf("Enter the period of click analytics (number of days): ");
  scanf("%d", &daysPeriod);

  /* Using a while loop to count the input day for analytics, the input day at lease is 1 day. */
  while (days <= daysPeriod) {
    /* Read how many clicks per day within while loop for daysPeriod, as input's day. */
    printf("Enter the clicks in day %d: ", days);
    scanf("%d", &click);
    fflush(stdin);  //!! BAD

    hold = click;               /*unused */

    /* Checking the value of click is value highest or lowest */
    if (click > highest) {
      highest = click;
    }
    if (click < lowest) {
      lowest = click;
    }

    /* Checking the value of click, if over 500 times, the value of more500 will be counted. */
    if (click >= 500) {
      more500++;
    }

    /* Checking the value of currentday, if the click of pervious day is more then current day 2 times,
       the value of twice will be counted */
    if (currentday / 2 < click) {
      currentday = click;
      twice++;
    }

    /* Add the total click's value each loop, then put it into sum of click, as sumClick */
    sumClick += click;

    /* This days will be added each loop until all input's days are counted; as days will be equal to dayPeriod. */
    days++;
  }

  /* printout the click's results of average, highest, lowest, click more than 500 and clicks twice more than the previous day. */
  printf("Average click is: $%d\n", sumClick / daysPeriod);
  printf("Highest clicks is %d\n", highest);
  printf("Lowest clicks is %d\n", lowest);
  printf("Number of days with clicks more than 500 is %d\n", more500);
  printf("Number of days with clicks twice of previous day: %d\n", twice);

  return 0;
}

Code:

    /* Checking the value of currentday, if the click of pervious day is more then current day 2 times,
       the value of twice will be counted */
    if (currentday / 2 < click) {
      currentday = click;
      twice++;
    }

Better variable names would help.

Code:

    if (yesterdayClicks / 2 < todaysClicks) {
      yesterdayClicks = todaysClicks;
      twice++;
    }