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In this tutorial, we are going to explain the types of arrays in c programming. In c programming, arrays are classified into two types but if we use both arrays in programming then we can say it is a multi-dimensional array. Types of arrays in programming are as follows.
The one-dimensional array also called single dimensional array is the type of array. Accessing its elements involves the single subscript which can either represent a row or column index.
As an example consider the C declaration int marks10];
In the above-given example, the array is contained with the 10 elements of any value available to the int data type. In the C, the array element scale is from 0 to 9 indexes because the array always starts from 0 indexes.
You can use the following syntax to declare a 1-D array in the c programming language; as shown below:
Syntax:
datatype arrayName [ size ] ;
Example
int students [10] ;The above declaration of 1-D array reserves 10 continuous memory locations of 2 bytes each with the name students and tells the compiler to allow only integer values into those memory locations.
Following general syntax is used for declaring and initializing a one-dimensional array.
datatype arrayName [ size ] = {value1, value2, value3 ...} ;
Example Code for Initialization
int students [6] = { 89, 90, 76, 78, 98, 86 } ;In a c programming language, to access the elements of a one-dimensional array we use an array name. The following syntax is used to access the value from the array.
arrayName [indexValue]Example Code
RollNO [2] = 99 ;#include<stdio.h>
int main()
{
int n; //variable declation
int student[5] = {10,20,30,40,50}; //declaring and Initializing array in C
student[0] = 10; /* initialized array
student[1] = 20;
student[2] = 30;
student[3] = 40;
student[4] = 50; */
for (n=0;n<5;n++)
{
// Accessing each array through for loop
printf("marks of student[%d] is %d \n", i, student[i]);
}
}Output of the above program
Value of arr[0] is 10
Value of arr[1] is 20
Value of arr[2] is 30
Value of arr[3] is 40
Value of arr[4] is 50#include <stdio.h>
#include <stdlib.h>
int main()
{
int i,A[50],size;
int large1=0, Large2=0;
printf("Plz decide the size of array: ");
scanf("%d",&size);
for(i=0; i<size; i++){
printf("\n Enter 1st no ");
printf("%d :",(i+1));
scanf("%d",&A[i]);
if(large1<A[i]){
Large2=large;
large=A[i];
}
else if(Large2<A[i]){
Large2=A[i];
}
}
printf("\n\n");
printf("Large No is %d",large);
printf("\n The second largest number is %d",Large2);
return 0;
}When an array is created with more than one dimension is called a multi-dimensional array. A two-dimensional array is also called a multi-dimensional array. The two-dimensional array in C programming is also known as a matrix or table which contains rows and columns. A matrix can be represented as a table of rows and columns. Before we discuss two Dimensional arrays. The example of the two-dimensional array is as follows.
include<stdio.h>
include<conio.h>
void main( )
{
int marks[4][5];
int i,j;
for (i=o;i<5;i++) {
for (j=0;j<5;j++) {
printf (” Enter the value for marks [%d][%d] :”,i,j);
scanf (“%d”, &marks[i][j]);
}
}