4.

4.#

 1#include <iostream>
 2
 3using namespace std;
 4
 5int func(int m, int& n) {
 6  int b         = 0;
 7  static int c  = 4;
 8  b            += 2;
 9  c            += 1;
10  n            += m + b + c;
11  return n;
12}
13
14int main() {
15  int a  = 4;
16  int y  = 2;
17  int* p = &y;
18  std::cout << func(a, *p) << '\n';
19  std::cout << func(a, *p) << '\n';
20  std::cout << func(a, *p) << '\n';
21  std::cout << func(a, *p) << '\n';
22  cout << y;
23  return 0;
24}