Array in c programming

ARRAYS
Name – BHAGWAN SAHAY JANGID
B.TECH FIRST YEAR (C.S.)

INTRODUCING ARRAYS :-
• An array is a collection of variables of
the same type that are referred to
through a common name.
Int num [3];
Num reference —: num[0]
num[1]
num[2]

• Data type array name [index];
• Example :-
• Int list [10];
• Char num [15];
• Float hat [20];
DECLARING ARRAY VARIABLES :-

CREATING ARRAYS :-
• Data type array _name [size];
• Example :
• Int num [10];
• Num [0] references the first element in the
array.

DIFFERENT TYPES OF ARRAYS :-
•ONE-DIMENSIONAL ARRAY
•TWO-DIMENSIONAL ARRAY
•MULTI-DIMENSIONAL ARRAY

ONE-DIMENSIONAL ARRAYS :-
•One dimensional array have only one subscript
under a common name.
•Syntax
•Data _type array_name [array_size];
•Example :-
•Int age [5]; ={2,3,4,5,6};

EXAMPLE PROGRAM :-
• # include <stdio.h>
• # include <conio.h>
• Int main ()
• {
int a[4];
int I ;
for (i=0; i<4 ; i++)
{
scanf(“%d”,& a[i]);
}
for (i=0 ; i<4; i++)
printf (“a[%d]=%d/n”,I, a[i]);
return 0;
}

TWO-DIMENSIONAL ARRAYS :-
•Two – dimensional array are those type of array.
Which has finite number of rows and finite number of
columns. 2D arrays are generally known as matrix.
•Data _type Array _name [row size ][columnsize];

EXAMPLE PROGRAM :-
• # include <stdio.h>
# include<conio.h>
into main()
{
int disp [3][4];
int I, j ;
for (i=0; i<=2; i++)
{
for (j=0; j<=4; j++)
}
printf (“Enter value for disp [%d][%d][%d]”,I, j);
scanf (“%d”,&disp [i] [ j]);
}
}
return 0;
}

MULTI-DIMENSIONAL ARRAYS :-
•An array have multiple subscript under a common
name.
•Syntax
•Type name [size][size]…..[size];
•Example :-
•Float a[2][6][8][4]…..[n];

EXAMPLE PROGRAM :-
int matrix [10][10];
{
for(i=0; i<10; i++)
for(j=0; j<10; j++)
{
matrix[i][ j] = i×j;
}
float mat [5][5];

Array in c programming

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Array in c programming