array related problem 4

#include <iostream>

using namespace std;
int main()
{
    int c=0,n;
    cin >> n;
    int ar[n];
    for(int i=0; i<n; i++)
    {
        cin >> ar[i];
    }
    int key;
    cin >> key;
    for(int i=0; i<n; i++)
    {
        if(ar[i]==key)
            c++;
    }
    printf("%d is found %d times in your list\n",key,c);
}