Data Structures Program on Sequential Search

  #include< iostream >
  using namespace std;
  int main()
  {
     int arr[10];
     int no_of_elements, key;
     bool found = false;
     cout<<"Enter the number of element: ";
     cin>>no_of_elements;
     for(int i = 0; i < no_of_elements; i++)
     {
       cout<<"arr["<< i <<"]: ";
       cin>>arr[i];
     }
     cout<<"Enter the value to search: ";
     cin>>key;
     for(int i=0;i< no_of_elements;i++)
     {
       if(key == arr[i])
       {
         found = true;
         cout<<"The value is found at index arr["<< i <<"]";
       }
     }
     if(!found)
     {
       cout<<"Key not found!";
     }
     return 0;
  }