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Free C++ Institute CPP Practice Exam with Questions & Answers | Set: 7

Questions 61

Which changes introduced independently will allow code to compile and display 0 1 8 9 (choose all that apply)

#include <iostream>

#include

#include

using namespace std;

class A {

int a;

public:

A(int a):a(a){}

int getA() const { return a;}

/* Insert Code Here 1 */

};

/* Insert Code Here 2 */

int main(){

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

vectorv(t, t+10);

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

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

s1.erase(s1.lower_bound(2),s1.upper_bound(7));

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

cout<<i?>getA()<<" ";

}

cout<<endl;

return 0;

}

Options:
A.

operator int() const { return a;} inserted at Place 1

B.

bool operator < (const A & b) const { return a

C.

bool operator < (const A & b) const { return b.a<a;} inserted at Place 1

D.

bool operator < (const A & a, const A & b) { return a.getA()

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Questions 62

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

#include

#include <iostream>

#include <algorithm>

#include <functional>

using namespace std;

class B { int val;

public:

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

int getV() const {return val;} bool operator > (const B & v) const { return val>v.val;} };

ostream & operator <<(ostream & out, const B & v) { out<<v.getV(); return out;}

templatestruct Out {

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

void operator() (const T & val ) { out<<val<<" "; } };

int main() {

int t[]={20, 30, 10, 20, 30, 10, 20, 30, 10, 20};

deque d1(t, t+10);

sort(d1.begin(), d1.end(), greater());

pair ::iterator, deque::iterator > result = equal_range(d1.begin(), d1.end(), B(20), greater());

for_each(result.first, result.second, Out(cout));cout<<endl;

return 0;

}

Program outputs:

Options:
A.

30 30 30 20 20 20 20 10 10 10

B.

20 20 20 20

C.

30 20 20 20 10

D.

20 20 20 20 10

E.

30 20 20 20 20 10

Questions 63

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

#include

#include <iostream>

#include <algorithm>

using namespace std;

templatestruct Out {

ostream & out;

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

void operator() (const T & val ) { out<<val<<" "; } };

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(), bind1st(1,Add()));

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

return 0;

}

Program outputs:

Options:
A.

1 2 3 4 5 6 7 8 9 10

B.

2 3 4 5 6 7 8 9 10 11

C.

10 9 8 7 6 5 4 3 2 1

D.

11 10 9 8 7 6 5 4 3 2

E.

compilation error

Questions 64

Which lines of the code below contain proper instantiation of queue objects?

#include <iostream>

#include

#include

#include

#include

using namespace std;

int main()

{

deque mydeck;

list mylist;

vector myvector;

queue first; // line I

queue second(mydeck);// line II

queue third(second);// line III

queue fourth(mylist);// line IV

queue fifth(myvector);// line V

return 0;

}

Options:
A.

line I

B.

line II

C.

line III

D.

line IV

E.

line V

Questions 65

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

#include

#include <iostream>

#include <algorithm>

using namespace std;

class B { int val;

public:

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

int getV() const {return val;}

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

ostream & operator <<(ostream & out, const B & v) { out<<v.getV(); return out;}

templatestruct Out {

ostream & out;

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

void operator() (const T & val ) { out<<val<<" "; } };

struct Add {

B operator()(B & a, B & b) { return a+b; } };

int main() {

B 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<<endl;

return 0;

}

Program outputs:

Options:
A.

1 2 3 4 5 6 7 8 9 10

B.

2 3 4 5 6 7 8 9 10 11

C.

10 9 8 7 6 5 4 3 2 1

D.

11 10 9 8 7 6 5 4 3 2

E.

compilation error

Questions 66

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

#include

#include <iostream>

using namespace std;

bool mycomparison (int first, int second){return first>second;}

template

void print(T start, T end) {

while (start != end) {

std::cout << *start << " "; start++;

}

}

int main()

{

int t1[] ={ 1, 7, 8, 4, 5 };

list l1(t1, t1 + 5);

int t2[] ={ 3, 2, 6, 9, 0 };

list l2(t2, t2 + 5);

l1.sort(mycomparison);

l2.sort(mycomparison);

l1.merge(l2,mycomparison);

print(l1.begin(), l1.end());

print(l2.begin(), l2.end()); cout<<endl;

return 0;

}

Options:
A.

program outputs: 9 8 7 6 5 4 3 2 1 0

B.

program outputs: 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0

C.

program outputs: 9 8 7 6 5 4 3 2 1 0 9 6 3 2 0

D.

program outputs: 0 1 2 3 4 5 6 7 8 9 0 2 3 6 9

E.

program outputs: 0 1 2 3 4 5 6 7 8 9

Questions 67

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

#include

#include <iostream>

#include <algorithm>

#include <functional>

using namespace std;

class B { int val;

public:

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

int getV() const {return val;}

B operator +(const B &b )const { return B(val + b.val);} };

ostream & operator <<(ostream & out, const B & v) { out<<v.getV(); return out;}

templatestruct Out {

ostream & out;

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

void operator() (const T & val ) { out<<val<<" "; } };

template<typename A> struct Add : public binary_function {

A operator() (const A & a, const A & b) const { 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(), bind1st(ptr_fun (Add()), 1));

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

return 0;

}

Program outputs:

Options:
A.

1 2 3 4 5 6 7 8 9 10

B.

2 3 4 5 6 7 8 9 10 11

C.

10 9 8 7 6 5 4 3 2 1

D.

11 10 9 8 7 6 5 4 3 2

E.

compilation error

Questions 68

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

#include <iostream>

#include

#include

using namespace std;

int main(){

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

vectorv(myints, myints+10);

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

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

s1.erase(s1.lower_bound(2),s1.upper_bound(7));

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

cout<<*i<<" ";

}

return 0;

}

Options:
A.

program outputs: 0 1 8 9

B.

program outputs: 2 3 4 5 6 7

C.

program outputs: 1 6 5 7

D.

program outputs: 3 4 9 8 0

Exam Code: CPP
Certification Provider: C++ Institute
Exam Name: C++ Certified Professional Programmer
Last Update: Mar 23, 2025
Questions: 228

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