C Language One dimension Array

C Language One dimension Array

In this article, we will discuss the C Language One dimension Array

One dimensional Array in C language

Knowledge Area

In the C Programming Language, an array is a fixed sequenced collection of the element of the same data types. an array can be used to represent a list of number(int) or name (string) or other data type(char, float, double) of similar elements. It is one of the ways of the grouping of similar types of data of single variables names.

Three types of arrays in C programming language

1. One dimensional array
2. Two-dimensional array
3. multi dimensional array

One Dimensional Array in c

Declaration of one d arrays.

data_type array_name[array_size];

for example

double salary[10];
int marks[50];
char name[200];

Here, we declared an array, marks of int type and size 10. It’s meaning it can allocate to 10 memory space for stored int (similar type) value.
The size and type cannot be changed after its declaration- it is a disadvatages of an array

• The array index is starting from 0 not 1
• The array index is ending to n-1(n is equal to array size or array length)
• Array size is starting 1 and ending to n

Ex:
I explain for you of this array

Here,

Initialize an array in C language

Standard method

you can place elements into an array by specifying the index position

marks[0]=45 //first element of an array
marks[1]=78 //second element of an array
marks[2]=65 //third element of an array
marks[3]=68 //forth element of an array
marks[4]=34 //fifth element of an array
marks[5]=59 //sixth element of an array

Initializing array when the array declaration

method 1

int mark[6]={26,45,67,86,43,69};

when we initialized an array, the number of values are assigned in curly brackets {}. It can not be larger or smaller than the number of elements in the array between the given square bracket[]

method 2

int mark[]={26,45,67,86,43,69};

according to the number of an element given in the curly brackets, the size of the array is automatically allocated.

here, as six elements assign the curly brackets, it has allocated six spaces with spaces

Here Array is initialized

now,

26 is placed index marks[0]
45 is placed index marks[1]
67 is placed index marks[2]
86 is placed index marks[3]
43 is placed index marks[4]
69 is placed index marks[5]

insert element to array in c language

Normal insertion

Insertion with for loop

displaying element from the array

Normal display

display using for loop

display using while loop

i=0;
while(i<10){
printf("%d",&a[i]);
}

display using do-while loop

i=0;
do{
printf("%d",&a[i]);
}while(i<10);

Example

initialized and display elements using for loop

program 1

#include <stdio.h>
#include <stdlib.h>

int main()
{
    int count;
    printf("How many student of your class\n");
    scanf("%d",&count);
    //store array size takes from the user
    int i;
    int marks[20];
    printf("Enter student marks\n");

    for(i=0; i<count; i++){
       
        scanf("%d",&marks[i]);
        //store array elements takes from the user
    }
    for(i=0; i<count; i++){
        printf("you entered marks %d %d\n",i+1,marks[i]);
        //display data from array

    }
    getch();

    return 0;
}

When the above code executed it produces the following output

Program 2

initialized and display elements using while loop

#include <stdio.h>
#include <stdlib.h>

int main()
{
    int count;
    printf("How many student of your class\n");
    scanf("%d",&count);
    //store array size takes from the user
    int i;
    int marks[20];
    printf("Enter student marks\n");

    i=0;
    while(i<count){
        
        scanf("%d",&marks[i]);
        //store array elements takes from the user
        i++;
    }
    i=0;
    while(i<count){
        printf("you entered marks %d %d\n",i+1,marks[i]);
        //display data from array
 i++;
    }
    getch();

    return 0;
}

When the above code executed it produces the following output

Program 3

initialized and display elements using the do-while loop

#include <stdio.h>
#include <stdlib.h>

int main()
{
    int count;
    printf("How many student of your class\n");
    scanf("%d",&count);
    //store array size takes from the user
    int i;
    int marks[20];
    printf("Enter student marks\n");

    i=0;
    do{
        //printf("%d",marks[i]);
        scanf("%d",&marks[i]);
        //store array elements takes from the user
        i++;
    }while(i<count);
    i=0;
    do{
        printf("you entered marks %d %d\n",i+1,marks[i]);
        //display data from array
 i++;
    }while(i<count);
    getch();

    return 0;
}

When the above code executed it produces the following output

Final program

#include <stdio.h>
#include <stdlib.h>

int main()
{
int marks[20],i,n,max;
printf(“enter the number of students!n”);
// enter how many student you want
scanf(“%d”,&n);  //input fromuser
// array read processing
printf(“yes enter your marks!n”);
for(i=0; i<n; i++)
{   printf(“Enter the marks of students!%d   “,i+1);
scanf(“%d”, &marks[i]);
}
max=marks[0];
for(i=1; i<n; i++)
{
if(max<marks[i])
{
max=marks[i];
}
}
//display
printf(“you enterd !n”);
for(i=0; i<n; i++){
printf(“t%d”,marks[i]);
}
printf(“nnThe maximum max is !%d”,max);

return 0;

When the above code executed it produces the following output

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