C++ Institute CPP Quiz:2 Topic:6 Questions:6-10

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

#include

using namespace std;

int main()

{

cout<

return 0;

}

Program outputs:

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 Sequence {

int start;

Sequence(int start):start(start){}

int operator()() { return start++; }

};

struct Odd { bool operator()(int v) { return v%2==0; } };

int main() {

vector v1(10);

vector v2(10);

generate(v1.begin(), v1.end(), Sequence(1));

stable_partition(v1.begin(),v1.end(), Odd());

for_each(v1.begin(), v1.end(), Out(cout) );cout<

return 0;

}

Program outputs:

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 Sequence {

int start;

Sequence(int start):start(start){}

int operator()() { return start++; }

};

struct Odd { bool operator()(int v) { return v%2==0; } };

int main() {

vector v1(10);

vector v2(10);

generate(v1.begin(), v1.end(), Sequence(1));

stable_partition(v1.begin(),v1.end(), Odd());

for_each(v1.begin(), v1.end(), Out(cout) );cout<

return 0;

}

Program outputs:

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

#include

#include

#include

using namespace std;

int main(){

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

string first[] = {"three", "four", "two", "one", "six","five", "seven", "nine","eight"," ten"};

map m;

for(int i=0; i<10; i++) {

m.insert(pair(second[i],first[i]));

}

if (m[11] == "eleven") {

cout<<"eleven ";

}

for(map::iterator i=m.begin();i!= m.end(); i++) {

cout<second<<" ";

}

cout<

return 0;

}

Which are NOT valid instantiations of priority_queue object:

#include

#include

#include

#include

#include

using namespace std;

int main()

{

deque mydeck;list mylist; vector myvector;

priority_queue first;//line I

priority_queue > second;//line II

priority_queue third(first);//line III

priority_queue > fourth(third);//line IV

priority_queue > fifth(myvector.begin(), myvector.end());//line V

return 0;

}