Eleve al cuadrado un número si es par y al cubo si es impar

//C++ code
int f1(int a){
  return a * a;
}
int f2(int a){
  return a * a * a;
}
int twice(int (*f)(int), int a){
  return f(a) + f(a);
}
int main(){
  int (*f[2])(int);
  f[0] = f1;
  f[1] = f2;
  int (*g)(int, int);
  g = twice;
  int (*h)(int);
  h = g(f[0], f[1]);
  std::cout << h(5);
  return 0;
}

#python code
def f1(a):
  return a * a
def f2(a):
  return a * a * a
def twice(f, a):
  return f(a) + f(a)

f = [f1, f2] #array of functions
g = twice
h = g(f[0], f[1])
print(h(