DELETING DUPLICATES FROM A LINEAR ARRAY

/*  DELETING  DUPLICATES FROM A LINEAR ARRAY*/
/* DUPL_A.C */

# include<stdio.h>

int status ;
int dup;
int duplicate_array(int *, int);
void input(int *, int );
void display(int *, int );

/* Definition of the function */

int duplicate_array(int array[], int number)
{
    int i, j, k;
    status = 0;
    dup  = number;

    for(i = 0; i< number-1; i++)
        for(j = i+1; j< number; j++)
        {
            if(array[i] == array[j])
            {
                number = number - 1 ;
                for(k = j; k<number; k++)
                    array[k] = array[k+1];
                status = 1;
                j = j - 1;
            }
        }
    if( status ==0)
        printf("\n No duplicate is found");
    return(dup-number);
}

/* Input function to read data */

void input(int array[], int number)
{
    int i;
    for(i = 0; i< number ; i++)
    {
        printf("Input value for: %d: ", i+1);
        scanf("%d", &array[i]);
    }
}

/* Output function */

void display(int array[], int number)
{
    int i;
    for(i = 0; i< number; i++)
    {
        printf("\n Value at the position: %d: %d", i+1, array[i]);
    }
}

/* main function */

void main()
{
    int number;
    int array[100];
    int n;
    printf("\n Input the number of elements in the list: ");
    scanf("%d", &number);
    input(array, number);
    printf("\n Entered list is as follows:\n");

    display(array,number);

    n = duplicate_array(array,number);
    printf("\nNumber of duplicate elements in the list are: %d", n);
    printf("\nAfter removing duplicates from the list, the list is as follows:");
    display(array,number-n);
}