C++ Program to Insert Element at Specific Position in Array

Write C++ Program to Insert Element at Specific Position in Array

// CPP Program to Insert Element at Specific Position in Array

#include <iostream>

using namespace std;

int main()
{
	int A[] = {1, 2, 45, 34, 54, 24, 52, 75};
	int i, x, pos,n;
	n = sizeof(A) / sizeof(A[0]);

    cout << "Array Elements :--> ";
	for (i = 0; i < n; i++)
		cout << A[i] << " ";


	cout << "\nEnter Element to Insert :--> ";
	cin >> x;

	cout << "Enter Position to Insert At :--> ";
	cin >> pos;

	// increase the size by 1

	n++;
	if(pos > n)
	{
		cout << "\nInvalid Position";
	}
	else
	{
		// shift elements forward
		for (i = n; i >= pos; i--)
			A[i] = A[i - 1];

		// insert x at pos
		A[pos - 1] = x;

		cout << "\nArray After Insertion :--> ";
		for (i = 0; i < n; i++)
			cout << A[i] << " ";

	}
	return 0;
}

Output:

Run 1:
Array Elements :--> 1 2 45 34 54 24 52 75
Enter Element to Insert :--> 111
Enter Position to Insert At :--> 2

Array After Insertion :--> 1 111 2 45 34 54 24 52 75

Run 2:
Array Elements :--> 1 2 45 34 54 24 52 75
Enter Element to Insert :--> 111
Enter Position to Insert At :--> 12

Invalid Position

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