IC210: Functions IV

Give the output of the following program. What happens if you run this program many times?


#include <iostream>
using namespace std;

void f();
void g();

int main()
{
  int i = 10;
  cout << "In main:(1): " << i << endl;

  f();
  cout << "In main:(2): " << i << endl;

  g();
  cout << "In main:(3): " << i << endl;

  return 0;
}


void f()
{
  int i;
  cout << "In f:(1): " << i << endl;

  i = 20;
  cout << "In f:(2): " << i << endl;

  g();
  cout << "In f:(3): " << i << endl;
}


void g()
{
  int i;
  cout << "In g:(1): " << i << endl;

  i=30;
  cout << "In g:(2): " << i << endl;
}