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C++ Program to Delete an Element in an array

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robaa
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2022-11-26
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Write a C++ Program to Delete an Element in an array. Here’s simple Program to Delete an Element in an array in C++ Programming Language.

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robaa
2022-11-26
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What is an Array ?

Arrays a kind of data structure that can store a fixed-size sequential collection of elements of the same type. An array is used to store a collection of data, but it is often more useful to think of an array as a collection of variables of the same type.

 
 

Instead of declaring individual variables, such as number0, number1, …, and number99, you declare one array variable such as numbers and use numbers[0], numbers[1], and …, numbers[99] to represent individual variables. A specific element in an array is accessed by an index.

All arrays consist of contiguous memory locations. The lowest address corresponds to the first element and the highest address to the last element.

To delete element from an array in C++ programming, you have to first ask to the user to enter the array size then ask to enter the array elements, now ask to enter the element which is to be deleted. Search that number if found then place the next element after the founded element to the back until the last.

 

Here is source code of the C++ Program to Delete an Element in an array. The C++ program is successfully compiled and run(on Codeblocks) on a Windows system. The program output is also shown in below.

SOURCE CODE : :

/*  C++ Program to Delete an Element in an array  */

#include<iostream>
using namespace std;

int main()
{

        int arr[50], size, i, del, count=0;

        cout<<"Enter array size( Max:50 ) :: ";
        cin>>size;
        cout<<"\nEnter array elements :: \n";

        for(i=0; i<size; i++)
        {
            cout<<"\nEnter arr["<<i<<"] Element :: ";
                cin>>arr[i];
        }

        cout<<"\nEnter element to be delete :: ";
        cin>>del;

        for(i=0; i<size; i++)
        {
                if(arr[i]==del)
                {
                        for(int j=i; j<(size-1); j++)
                        {
                                arr[j]=arr[j+1];
                        }
                        count++;
                        break;
                }
        }
        if(count==0)
        {
                cout<<"\nElement not found..!!\n";
        }
        else
        {
                cout<<"\nElement deleted successfully..!!\n";
                cout<<"\nNow the new array is ::\n";
                for(i=0; i<(size-1); i++)
                {
                        cout<<arr[i]<<" ";
                }
        }
    cout<<"\n";

        return 0;
}

OUTPUT : :

/*  C++ Program to Delete an Element in an array  */

Enter array size( Max:50 ) :: 8

Enter array elements ::

Enter arr[0] Element :: 1

Enter arr[1] Element :: 2

Enter arr[2] Element :: 3

Enter arr[3] Element :: 4

Enter arr[4] Element :: 5

Enter arr[5] Element :: 6

Enter arr[6] Element :: 7

Enter arr[7] Element :: 8

Enter element to be delete :: 5

Element deleted successfully..!!

Now the new array is ::
1 2 3 4 6 7 8

Process returned 0

Above is the source code for C++ Program to Delete an Element in an array which is successfully compiled and run on Windows System.The Output of the program is shown above .

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