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CPP – C++ Certified Professional Programmer

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Showing 10–12 of 15 questions

Question 10 (Volume A)

What will happen when you attempt to compile and run the code below, assuming you enter the following sequence: 1 2 3?

#include

using namespace std;

int main ()

{ int a,b,c;

cin>>a>>b>>c; cout<<><><>

Program will output:

Select an option, then click Submit answer.

  • ○

    123
  • ○

    1 2 3
  • ○

    321
  • ○

    compilation error
  • ○

    the result is unspecified
Question 11 (Volume B)

What happens when you attempt to compile and run the following code?

#include #include using namespace std; class A

{ int a,b; public:

A(const A & c) { a = c.a; }

A():a(0),b(0){}

void setA(int a) {this?>a = a;} void setB(int b) {this?>b = b;} int getA() {return a;} int getB() {return b;}

};

int main ()

{

vector v;

A a;

a.setA(10); a.setB(11);

v.push_back(a);

cout<<>

Select an option, then click Submit answer.

  • ○

    program outputs 10 11
  • ○

    the result is unpredictable
  • ○

    program outputs 10 0
  • ○

    program outputs 11 0
  • ○

    compilation error
Question 12 (Volume B)

What happens when you attempt to compile and run the following code?

#include

#include

#include

#include #include using namespace std; int main() {

int t[] = { 3, 4, 2, 1, 6, 5, 7, 9, 8, 0 }; vector v(t, t + 10); map m;

for (vector::iterator i = v.begin(); i != v.end(); i++) { stringstream s;s << *i << *i;

m.insert(pair(*i, s.str()));

}

pair<>::iterator, map::iterator> range; range = m.equal_range(6);

for (map::iterator i = range.first; i != range.second; i++) { cout << i?>first << " ";

} return 0; }

Select an option, then click Submit answer.

  • ○

    program outputs: 6
  • ○

    program outputs: 5 7
  • ○

    program outputs: 6 7
  • ○

    program outputs: 1 5
  • ○

    program outputs: 6 5