Write a program to remove duplicates from a sorted array in place?

#include
using namespace std;

class Solution{
public:
//function that takes an array and its size as arguments
int removeDuplicates(int a[],int n){
int index=0;
for(int i=1;i>T;
//running the loop for all test cases
while(T–)
{
int N;
//taking size input from user
cin>>N;
int a[N];
//taking array input from user
for(int i=0;i>a[i];
}
Solution ob;
//calling the removeDuplicates in the Solution class
int n = ob.removeDuplicates(a,N);
//printing the array after removing duplicates
for(int i=0;i<n;i++)
cout<<a[i]<<" ";
cout<<endl;
}
}