3.

3.#

 1#include <iostream>
 2
 3using namespace std;
 4
 5int solve(int num[], int& s, int len) {
 6  static int sum = 0;
 7  for (int i = 0; i < len; i++) {
 8    sum += num[i];
 9    s   += num[i];
10  }
11  return sum;
12}
13
14int main() {
15  int A[4][4] = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16};
16  int B[4]    = {0};
17  int sum;
18  for (int i = 0; i < 4; i++) {
19    sum = solve(A[i], B[i], 4);
20    cout << B[i] << endl;
21  }
22  cout << sum << endl;
23}