#include <string.h>
#include <stdio.h>
#include <conio.h>
#include <stdlib.h>
#include <alloc.h>

void ascending (double *tptr, int days);

void descending (double *tptr, int days);

void AVE (double *tptr, int days);

void Display (double *tptr, int days);

void MINMAX (double *tptr, int days, double mini, double max);

int main()
{
	int menu, days;
	register int i;
	double *tptr;
    double mini, max;
	clrscr();

	printf("Enter the number of days : ");
	scanf("%d", &days);

	tptr=(double *)malloc(days * sizeof(double));

	for (i=0;i<days;i++)
	{
	printf("\nEnter temperature %d : ", i+1);
	scanf("%ld", &tptr[i]);
	}
    
    clrscr();

do
{
    printf("\n\n1. Display temperatures sorted in the descending order.");
    printf("\n\n2. Display temperatures sorted in the  ascending order.");
    printf("\n\n3. Display the average temperature.");
    printf("\n\n4. Display the number of temperatures that are within the specified range.");
    printf("\n\n5. Exit");
    printf("\n\n>>> ");
    scanf("%d", &menu);

    if (menu==1)
    {
        descending (tptr, days);
        printf("\n**** Temeratures are ****\n"); 
        Display (tptr, days);
    }

    if (menu==2)
    {   
        ascending (tptr, days);
        printf("\n**** Temeratures are ****\n"); 
        Display (tptr, days);
    }

    if (menu==3)
    {
        AVE (tptr, days);
    }

    if (menu==4)
    {
        printf("\nEnter the minimum temperature : ");
        scanf("%ld", &mini);
        printf("\nEnter the maximum temperature : ");
        scanf("%ld", &max);

        MINMAX (tptr, days, mini, max);
    }

printf("\n\nHit any key back to menu.");
getch();
clrscr();

}while(menu!=5);

printf("\n\nHit any key back to menu.");
getch();
fflush(stdin);
free(tptr);
return 0;
}

void ascending (double *tptr, int days)
{
int i, j;
double temp;

for (i=0;i<days-1;i++)
{
    for (j=(i+1);j<days;j++)
    {
        if (tptr[i] > tptr[j])
               {
                   temp = tptr[i];
                   tptr[i] = tptr[j];
                   tptr[j] = temp;
               }
    }
}

}

void descending (double *tptr, int days)
{
int i, j;
double temp;

for (i=0;i<days-1;i++)
{
    for (j=(i+1);j<days;j++)
    {
        if (tptr[i] < tptr[j])
               {
                   temp = tptr[i];
                   tptr[i] = tptr[j];
                   tptr[j] = temp;
               }
    }
}

}

void AVE (double *tptr, int days)
{
int i;
double sum=0;
float ave=0;

	for(i=0;i<days;i++)
	{
		sum=sum+tptr[i];
	}

ave=(float)sum/days;
printf("\nThe average temperature is %.2f", ave);
}

void Display (double *tptr, int days)
{
int i;
    for (i=0;i<days;i++)
    {
        printf("\n%d : %ld", (i+1), tptr[i]);
    }
}

void MINMAX (double *tptr, int days, double mini, double max)
{
int i;
int count=0;
double temp;

if( mini > max )
{
temp = mini;
mini = max;
max = temp;
}

for(i=0;i<days;i++)
{
if (tptr[i]>=mini&&tptr[i]<=max)
   count++;
}

printf("\nThere are %d days within the range.", count);
}