gan, ane buat fungsi untuk hapus data array yg sama kok malah error kya gini

ini codenya : [url]http://S E N S O R/k2ZPfstk[/url]
ato ane copy di sini aja

#include <iostream>

using namespace std;

void hapusygsama(double a[int x]){

 int jum[x], index[x];

 for(int z=0; z<x; z++){

 jum[z]=0;

 for(int c=0; c<x; c++){

 if(a[c]==a[z]){

 jum[z]++;

 index[z]=c; 

 } 

 } 

 }

 for(int z=0; z<x; z++){

 if(z==index[z]){

 cout<<a[z]<<endl;

 } 

 } 

}

int main(){

 int n,x;

 cin>>n;

 double a[n];

 for(x=0; x<n; x++){

 cin>>a[x]; 

 }

 hapusygsama(a[x]);

 return 0;

}

pas fungsinya ane ganti jdi gini

void hapusygsama(double a[], int x){

...

}

juga error gan, kya gini

21 E:\RieqyNS13\C++\hapusygsama.cpp:27 cannot convert 'double' to 'double*' for argument '1' to 'void hapusygsama(double*, int)'

yg salah apa ya gan, tolong dikoreksi