Past perfect or present perfect?

(Respondan en MINÚSCULA, sin puntos y sin contraer verbos).

You can have that newspaper. I (finish) with it.

What is the value returned by f(3)?

int f(int x, int &c) {
  c++;
  if (x <= 1) return x;
  else return f(x - 1, c) + f(x - 2, c);
}
int f(int n) {
  int c = 0;
  int r = f(n, c);
  return r + c;
}

What is the output of the following program?

void f(int& x, int& y, int z) {
  if (x > y) x = z;
  else y = z;
}
int main() {
  int a = 1, b = 2, c = 3;
  f(a, b, c);
  f(a, c, b);
  cout << a << ' ' << b << ' ' << c << '\n';
  return 0;
}

Consider the namespace and function definitions below. In which of the following cases would a new function declaration overloading of f

be invalid?

namespace a {
  int f(int x, int y = 3) { return x + y; }
}
namespace b {
  int f(int x=1) { return x + 1; }
  double f(int x, double y) { return x + y; }
}
int f(int x) {
  return x;
}

Consider the following code fragment:

namespace a {
  namespace b {
    int f(int x, int y=1) { return x + y; }
  }
  int f(int x) { return x > 1 ? x + 1 : a::b::f(x - 1); }
}
int g(int x) {
  return x % 3 == 0 ? a::b::f(x, 3) : a::f(x);
}

What is the value returned by g(x) for when x equals 1, 2, and 3 respectively?

What is the output of the following program?

void f(int& x, int& y) {
  if (x > y) {
    int t = x;
    x = y;
    y = t;
  }
}
 
void f(int& x, int y, int& z) {
  f(x, y);
  f(y, z);
  f(x, y);
}
 
int main() {
  int x = 3, y = 1, z = 2;
  f(x, y, z);
  cout << x << " - " << y << " - " << z << endl;
  return 0;
}

What is the output of the following code?

int x = 10;
int& xRef = x;
cout << ++x << " - ";
cout << xRef++ << " - ";
cout << x << " - " << (x==xRef) << endl;

Suppose there is a function f declared as:

bool f(int x, double y);

Which of the following overloadings of f would be invalid?

"Be going to" is used for planned actions.

What happens if you try to access a key in a dictionary that does not exist?