Use one dimensional array to solve the following problem. Read 20 integers from data file, each of which is between 10 and 100, inclusive. As each number is read, print it only if it is not a duplicate of a number already read. Provide for the Worst case in which all 20 integers are different. Use the smallest possible array To solve this problem

#include<iostream.h>

#include<conio.h>

void main()

{

clrscr();

int arr[20];

for (int i=0;i<20;i++)

                {

                cout<<"enter the element no "<<i+1<<endl;

                cin>>arr[i];

                }

for (i=0;i<20;i++)

                {

                for (int j=0;j<20;j++)

                                {

                                if (i!=j)

                                {

                                                if (arr[i]==arr[j])

                                                arr[j]=0;

                                                else

                                                continue;

                                }

                                else

                                continue;

                                }

                }

for (i=0;i<20;i++)

                {

                if (arr[i]<=100&&arr[i]>=10)

                cout<<arr[i]<<endl;

                else

                continue;

                }

getch();

}

OUTPUT:

 enter the element no 1

1

enter the element no 2

11

enter the element no 3                                                         

12                                                                             

enter the element no 4                                                         

113

enter the element no 5                                                         

14                                                                             

enter the element no 6                                                          

15                                                                             

enter the element no 7                                                         

16                                                                              

enter the element no 8                                                         

17                                                                             

enter the element no 9                                                          

18                                                                             

enter the element no 10                                                        

19                                                                              

enter the element no 11                                                        

10                                                                             

enter the element no 12                                                        

11                                                                             

enter the element no 13                                                        

12                                                                             

enter the element no 14                                                        

13                                                                             

enter the element no 15                                                        

14                                                                              

enter the element no 16                                                        

15                                                                             

enter the element no 17                                                         

16                                                                             

enter the element no 18                                                        

17                                                                              

enter the element no 19                                                        

23                                                                             

enter the element no 20                                                         

34                                                                             

11                                                                             

12                                                                              

14                                                                             

15                                                                             

16                                                                             

17                                                                              

18                                                                             

19                                                                             

10                                                                              

13                                                                             

23                                                                             

34