如何制作 function 从传递的数组中删除重复项

Question

It's my first year learning the C++ language. I want to make a function that removes duplicates from a passed array. I tried to doing it with many different kinds of logic, but sadly I have failed on all of them. I hope someone can help me.

Here is my code:

using namespace std;
#include <iostream>

void RemoveDuplicates(int * array,int n,int *&arrayb)
{
    int x=0;
    int y=0;
    for (int i=0;i<n;i++)
    {
        y++;
        if (array[x]!=array[y])
        {
            arrayb[x]=array[x];
            x++;
            y++;
        }
        else 
        {
            arrayb[x]=array[x];
            x++;
            y++;
            break;
        }
    }
}

int main()
{
    int n;
    cin >> n;
    int * array = new int [n];
    int * arrayb = new int [n];
    int i=0;
    for (i=0;i<n;i++)
    {
        cin>>array[i];
    }
    RemoveDuplicates(array,n,arrayb);

    for (int i=0;i<n;i++)
    {
        cout << arrayb[i] <<"  ";
    }
    system("pause");
}

Answer 1

My two cents on this, I had this piece of code in my repo

void remove_duplicates(int arr[], int &a_size) {
    for (int i = 0; i < a_size; i++) {
        for (int j = i + 1; j < a_size;j++) {
            if (arr[i] == arr[j]) {
                for (int k = j; k < a_size; k++) {
                    arr[k] = arr[k + 1];
                }
                a_size--;
                j--;
            }
        }
    }
}