C++ Program to Delete an Element from an Array

Write a C++ program to delete an element from an array at specified position.  Given an input array, Write a code to delete an element from a position input by a user.

To solve this problem, let's first understand what is the input parameter and what's our approach to solve this problem.

In this program, we take an input array and position of an element to delete.


C program to delete an element from an array

Reverse an Array using Recursion

C++ Program to Delete an Element form an Array

In this program, we take an array and position of an element as an input. Then, we write a code to delete an element from an array. To delete an element at index i in array we have to shift all elements from index i+1(higher index) to i (previous index).

#include <iostream>
using namespace std;

int main() {
 
   
   int a[100], size, pos, i, count = 0;

   cout << "Enter the size of an array \n";
   cin  >> size;
   
   cout << "Enter the value in an array \n";
   
   // Take an input array
   for (i = 0; i < size; i++) {
    cin >> a[i];
   }
   
   //Input position where we delete an element 
   cout << "Enter the position \n";
   cin  >> pos;

   //Shift element from i+1 to i
   for(i = pos-1; i < size; i++) {

      arr[i] = arr[i+1];
   }

   // Reduce the size of an array
   size--;            

  // Print an array after deleting an element
  for(i = 0; i < size; i++) {
   
    cout<<"   "<<a[i];
    
  }

  return 0;
}

Output : 

Enter the size of an array  - 5

Enter the value in an array

2     4     6     1      2

Enter the position    -   2

 2    4   1    2

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