Program to delete an element of an array |C Program|

Introduction

     Array manipulation is a crucial aspect of programming, and understanding how to efficiently delete elements from an array is a fundamental skill. In this blog post, we'll explore a C program that performs array deletion, shedding light on the process of removing an element at a specified position.  

Code

    
     
    #include<stdio.h>
    #include<conio.h>
    void main()
    {
        int a[100],pos,i,n;
        clrscr();
        printf("enter the no.of elements in an array:\n");
        scanf("%d",&n);
        printf("enter %d elements:\n",n);
        for(i=0;i<n;i++)
        scanf("%d",&a[i]);
        printf("which location you want to delete:");
        scanf("%d",&pos);
        if(pos>=n+1)
        {
        printf("deletion is not possible:\n");
        }
        else
        {
        for(i=pos-1;i<n-1;i++)
        a[i]=a[i+1];
        printf("after deletion:\n");
        for(i=0;i<n-1;i++)
        printf("%d\n",a[i]);
        }
        getch();
    }
       
     

Output

    enter the no.of elements in an array:
    5
    enter 5 elements:
    1
    2
    3
    4
    5
    which location you want to delete:4
    after deletion:
    1
    2
    3
    5       
       

Explanation

1. Header Files:

The program includes the standard input/output header <stdio.h> and the console I/O header <conio.h>.

2. Main Function:

The main function initiates the program.

Users are prompted to enter the number of elements in the array and the elements themselves.

3. Deletion Operation:

The program asks the user for the position at which they want to delete an element (pos).

It checks if the specified position is valid for deletion.

4. Element Removal:

If the deletion is possible, a for loop shifts the elements after the specified position to the left, effectively removing the element at the given position.

5. Result Display:

The program prints the array after the deletion operation, showcasing the modified array.

6. User Interaction:

Users receive clear feedback about the success or failure of the deletion operation, along with the modified array if deletion is possible.

Conclusion

     This C program provides a concise implementation of array deletion, a process essential for managing and manipulating arrays in programming. While this code uses a basic linear shifting approach, it's worth noting that more advanced techniques, such as using dynamic memory allocation, can be explored for larger datasets.