CPP C++ Certified Professional Programmer Question and Answers

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

#include

#include

#include

using namespace std;

int main(){

int t[] ={ 3, 4, 2, 1, 6, 5, 7, 9, 8, 0 };

vectorv(t, t+10);

multiset s1(v.begin(),v.end());

multiset > s2(v.begin(), v.end());

for(multiset >::iterator i=s2.begin();i!= s2.end(); i++) {

cout<<*i<<" ";

}

for(multiset::iterator i=s1.begin();i!= s1.end(); i++) {

cout<<*i<<" ";

}

cout<

return 0;

}

The output will be:

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

#include

#include

#include

using namespace std;

templatestruct Out {

ostream & out;

Out(ostream & o): out(o){}

void operator() (const T & val ) { out<

struct Add {

int operator()(int & a, int & b) {

return a+b;

}

};

int main() {

int t[]={1,2,3,4,5,6,7,8,9,10};

vector v1(t, t+10);

vector v2(10);

transform(v1.begin(), v1.end(), v2.begin(), bind2nd(Add(),1));

for_each(v2.rbegin(), v2.rend(), Out(cout));cout<

return 0;

}

Program outputs:

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<

return 0;

}

Program will output:

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

#include

#include

#include

#include

using namespace std;

bool identical(int a, int b) {

return b == 2*a?true:false;

}

int main() {

int t[] = {1,2,3,2,3,5,1,2,7,3,2,1,10, 4,4,5};

int u[] = {2,4,6,4,6,10,2,4,14,6,4,2,20,8,8,5};

vector v1(t, t + 15);

deque d1(u, u + 15);

pair::iterator, vector::iterator > result;

result = mismatch(d1.begin(), d1.end(), v1.begin(), identical); //Line I

if (result.first == d1.end() && result.second == v1.end()) {//Line II

cout<<"Identical\n";

} else {

cout<<"Not identical\n";

}

return 0;

}

Program outputs:

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

#include

#include

#include

using namespace std;

void myfunction(int i) {

cout << " " << i;

}

void multiply (int a) {

a*2;

}

int main() {

int t[] = { 10, 5, 9, 6, 2, 4, 7, 8, 3, 1 };

vector v1(t, t+10);

for_each(v1.begin(), v1.end(), multiply);

iter_swap(v1.begin(),t+9);

for_each(v1.begin(), v1.end(), myfunction);

return 0;

}

Program outputs:

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

#include

#include

#include

#include

using namespace std;

templatestruct Out {

ostream & out;

Out(ostream & o): out(o){}

void operator() (const T & val ) {out<

int main ()

{

list l;

for( ; !cin.bad() ; )

{

int i;

cin>>i;

l.push_back(i);

}

for_each(l.begin(), l.end(), Out(cout));

return 0;

}

Program will output:

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

#include

#include

#include

#include

#include

using namespace std;

int main()

{

int t[] ={ 1, 2, 3, 4, 5, 6, 7, 8, 9, 10};

deque mydeck(t, t+10);list mylist(t,t+10);

queue first;

queue second(mydeck);

queue third(second);

queue > fourth(mylist);

mylist.clear();third.clear();

cout<

cout<

return 0;

}

Which sentence is correct about the code below? Choose all that apply.

#include

#include

#include

using namespace std;

class F {

int val;

public:

F(int v):val(v){}

bool operator() (int v) {

if (v == val) return true;

return false;

}

};

int main() {

int t[] = { 10, 5, 9, 6, 2, 4, 7, 8, 3, 1 };

vector v1(t, t + 10);

if (find(v1.begin(), v1.end(), 6) == find(v1.begin(), v1.end(), F(6))) {

cout<<"Found!\n";

} else {

cout<<"Not found!\n";

}

return 0;

}

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

#include

#include

#include

using namespace std;

int main () {

int t[] = {1,2,3,4,5,1,2,3,4,5};

vector v (t,t+10);

vector::iterator it;

int m1[] = {1, 2, 3};

it = search (v.begin(), v.end(), m1, m1+3);

cout << "found at position: " << it?v.begin() << endl;

return 0;

}

Program outputs:

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

#include

#include

#include

#include

using namespace std;

class B { int val;

public:

B(int v=0):val(v){}

int getV() const {return val;}

operator int () const { return val;} };

templatestruct Out {

ostream & out;

Out(ostream & o): out(o){}

void operator() (const T & val ) { out<

int main() {

B t[]={3,2,4,1,5,6,10,8,7,9};

vector v1(t, t+10);

for_each(v1.begin(), v1.end(), bind1st(plus(), 1));

for_each(v1.rbegin(), v1.rend(), Out(cout));cout<

return 0;

}

Program outputs: