Array in C-Programming | Program to perform operation on array in C language | codeswithabhi

                                     C-Programming:-

In this tutorial yon will learn:

                                                    Array :-

 

 

Array is the collection of homogeneous data items that share a common name ,  Array contain similar kind  of values on a same name it allocate contiguous or sequential memory. 

*  Declaration of an array:-

 data type          array name [ array size ]  ;

for example,

float   bookprice [ 5 ] ;

*Initialization of an array:-

You can initialize an array in both condition 

 1 Compilation time :-  

  

#include<stdio.h>

#include<conio.h>

void main()

{

int arr[5]  =  { 1 , 2 , 3 , 4 , 5 };

Memory background like this :- 

  ___________________arr______________

0

1

2

3

4

        arr[0]                          arr[1]                         arr[2]                        arr[3]                        arr[4]

2 On run time :-  

#include<stdio.h>

#include<conio.h>

void main()

{

int arr[5];
                                                And after use scanf function  to store all values :------

 There are two main types of array are:-

1.  Single dimension :-  Single dimension array  also known as 1D array which contain either row or column of a given size of memory.

syntax :-

Data type       array name      [  size  ];

for example :-

int   arr [5]  ;

Memory background like this :- 

       _______________arr_________________

0

1

2

3

4

        arr[0]                          arr[1]                         arr[2]                        arr[3]                        arr[4]

 for example:-

* Write a program  to accepting value in array and print :-

#include<stdio.h>

#include<conio.h>

void main()

{

int arr[5];

int i,j;

printf("enter  5 any values");

for(i=0;i<5;i++)

{

scanf("%d",&arr[i]);

}

printf("values od an array \ n");

for(j=0;j<5;j++)

{

printf("%d\n",a[i]);

}

getch();

}

                                                                    OUTPUT

                                    enter 5 any values  1
                                                                   2
                                                                   3                  
                                                                   4
                                                                   5
                                           values  of array 1
                                                                     2
                                                                     3
                                                                     4
                                                                     5 
                           

                           In an array there are two types condition are:-

* Under flow condition :- In this condition , the no. of values is less than the size of an array.

* Over flow condition :-   In this condition , the no of values is more than the size of an array.

                                                Note point :-

* On compilation time , by default value become  0  if cells are empty.

* On run time , by default value become garbage values if cells are empty.

2 double dimension  array:-  2D  array is a double dimension array having row and  column 

Syntax :-

 Data type                  array name           [row] [column] ;

 int  arr[3][3] ;

        __________rows_____________

                                                   

1	2	3
4	5	6
7	8	9

 

  column

Let see one example to more clear this topic:-

*  write a program to create 3 x 3 matrix accept the values in matrix and print the values in matrix format:-

#include<stdio.h>

#include<conio.h>

void main()

{

int arr[3][3] ;

printf("enter the value of 3 x 3 matrixs");

for(i=0  ;   i<3   ;  i++)\

{

for(j=0  ;  j<3  ;  j++)

{

scanf("%d",& arr[i][j] ) ;

}

}

printf("Array values are");

for(i=0  ;  i<3  ;  i++)

{

for(j=0  ;  j<3  ;  j++)

{

printf("%d", arr[i][j] ) ;

}

printf(" \ n");

}

getch();

}

 OUTPUT:-

 enter the values of 3 x 3 matrix 1 2 3 4 5 6 7 8 9

 1   2   3  

 4   5   6

 7   8   9

Array and function:-

Array function in C is a data structure that hold multiple elements of the same data type. The size of an array is fixed and the elements are collected in a sequential manner .

let see one example to more clear this topic :-

#include<stdio.h>
#include<conio.h>
int  sum  (int [5] ) ;
void main()
{
int  arr[5] ;
int  i  ,  s ;
printf("Enter any 5 values ");
for(i=0  ;  i<5  ;  i++)
{
scanf("%d",&arr[i] );
}
s= sum ( a ) ;             OR             s=sum( a [ ] ) ;
printf("%d",s);
getch();
}
int sum( int b [5] )
{
int i,s=0;
for(i=0  ;  i<5  ;  i++)
{
s=s+b [i] ;
}
return(s);
}

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