arrays

ARRAY -             

                                    Array is a list or collection of data items which are stored in the form of a table, referred to by a common variable name is called “array Name” or “subscript variable name”.

                        ADVANTAGE OF USING AN ARRAY

§         Multi huge Quantity of data items can be stored under single variable name. 

§         Arrays save the memory space. 

§         Arrays help to arrange the data items in particular order. 

§         Data items searching are faster.

                        CONCEPT OF AN ARRAY

                                     Concept of an array can be classified into two types that are. 

A.     Single dimensional array. 

B.     Double/ multi dimensional array of matrix 

A.     Single dimensional array. 

Data items are stored in one single column with specified subscript variable name by using subscript range.

B.    Double / multi dimensional array of matrix.

In double dimensional array values are referred with respect to specified row column sing subscript variable name.

Above example indicates the 4/5 matrix all cell values are referred by the subscript name, quantity with respect to row and column.

                        PROGRAM:

/ * storing 10 sale’s amount in an array and find out total sale & best sale amount * /

                                         

            # include<iostream.h>

# include<conio.h>

Main ()

{

      Const int n=10;

      int sale_amt[100]; tot_amt; best=0;

      Clrscr ();

      / * storing values in an array * /

     

      For (i=0; i<=n; i++)

          {

                  printf (“Enter sales amount: \n”);

                  scanf (“%d”,&sale_amt[i]); 

   

/ * calculate the total sales find out best amount * /

tot_amt=tot_amt + sale_amt[i];

Best=sale_amt[i];

    }

/ * printing total and best sale amount* /

printf (“\n total sale amount =%d”, tot_amt);

      scanf (“\n best sale amount = %d”, best); 

}