计蒜客 元素移除

#include  <iostream>using namespace std ;int removeElement(int A[] , int n , int elem){       int count = 0 ;       for ( int i = 0 ; i < n ; ++i )           if ( A[i] == elem ) ++count;       return n-count ;}int main(){    int size_n;    cin >> size_n ;    int num[size_n];    for ( int i = 0 ; i < size_n ; ++i)               cin >> num[i];    int t ; cin >> t ;    cout << removeElement(num,size_n,t) << endl ;    return 0 ;}