numar ce se repeta in vector

Se citeste un vector. Sase afiseze de cate ori apare un nr ce se repeta #include <iostream> using namespace std; int main() { int aux,n,i,j,nr,a[20]; cout<<“n=”;cin>>n; for (i=1;i<=n;i++) {cout<<“a[“<<i<<“]=”;cin>>a[i];} aux=-1; for(i=1;i<=n;i++) {nr=1; if(a[i]!=aux) {for(j=i+1;j<=n;j++) if(a[i]==a[j]) {nr++;a[j]=aux;} cout<<“nr”<<a[i]<<“apare de “<<nr<<” ori”; cout<<endl;} } return 0; }