c: array of poiners(integer or double)

jetfreggel · 12-28-2002, 10:40 AM

hi everyone

i'm learning c from a book

there ids an exercice; Write a progam that uses pointers of the type integer
(or double) from the user sort them and print them out

i am approaching this with an array of pointers

i am only interrested in how i could put the var that i collect with scanf and put
and pointing to the and print it out
i am trying for two days now

this the best solution i got now
#include <stdio.h>

#define MAX 10

int main(void)
{
int count = 0 , tmp, cnt;
int nbr1[MAX];
for(;;)
{
scanf("%d", &tmp);

if (count < MAX && tmp != 0 )
{
nbr1[count++] = tmp;
}
else
break;
}
for(cnt = 0; cnt < count; cnt++)
{
printf("%d\n", nbr1[cnt] );
}
return 0;
}

but i don't think that's what there asking?????

jetfreggel · 12-28-2002, 12:04 PM

sorry, sorry, sorry i think i posted to early because i think i got it
(on my own not surfing the net until i found something)
here i go
[code]
#include <stdio.h>

#define MAX 10
int get_numbers(int p[]);
void sort(int p[] , int n);
void print(int p[] , int n);
int nbr[MAX];
int main(void)
{
puts("Enter 10 integers( 0 to exit)");
int aant_nbr = 0;
aant_nbr = get_numbers(nbr);
sort(nbr, aant_nbr);
print(nbr, aant_nbr);
return 0;
}
int get_numbers(int p[])
{
int count = 0 , tmp;
for(;

{
scanf("%d", &tmp);
if (count < MAX && tmp != 0 )
{
nbr[count++] = tmp;
}
else
{
return count;
break;
}
}
}
void sort(int p[] , int n)
{
int a, b;
int tmp;
for ( a = 0 ;a < n ; a++)
{
for (b = 1 ; b < n-1; b++)
{
if ( nbr[b] > nbr[b+1])
{
tmp = nbr[b];
nbr[b] = nbr[b+1];
nbr[b+1] = tmp;
}
}
}
}

void print(int p[] , int n)
{
int cnt;
for(cnt = 0; cnt < n; cnt++)
{
printf("%d\n", p[cnt] );
}
}
[code/]

GtkUser · 12-29-2002, 01:55 AM

Is this what you wanted to do? If so I think that the syntax is cleaner:

Code:

#include <stdio.h>

void FillArray ( int a[], int size )
{
  int i;
  for ( i = 0; i < size; ++i)
    {
      printf("Enter integer #%d :", i + 1);
      scanf("%d", &a[i] );
      while (getchar() != '\n');
    }
}

void SortArray(int  a[], int size)
{
  int i;
  int ii;
  int temp;

  for ( i = 0; i < size; ++i)
    {
      for ( ii = i + 1; ii < size; ++ii)
	{
	  if( a[i] > a[ii])
	    {
	      temp = a[i];
	      a[i] = a[ii];
	      a[ii] = temp;
	    }
	}
    }
}

void DisplayArray( int  a[], int size)
{
  int i;
  for (i = 0; i < size; ++i)
    {
      printf("%d \n", a[i]);
    }
}

int main()
{
  int iArray[10];
  int size = sizeof(iArray) / sizeof (int );

  FillArray( iArray, size );
  SortArray( iArray, size );
  printf("Sorted List:\n");
  DisplayArray( iArray, size);
  return 0;
}

jetfreggel · 12-29-2002, 08:39 AM

thx again for you reply

and i will try to studie the syntax note and try to use them
(caude they make the program much clearer)