Free Practice C++ Institute CPP-22-02 Exam Questions 2025

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Total 230 Questions | Updated On: Jan 26, 2025

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Question 1

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

#include <iostream>

#include <algorithm>

#include <vector>

using namespace std;

class A {

int apublic:

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

int getA() const { return a; } void setA(int a) { this?>a = a; }

bool operator==(A & b) { return a == b.a; }

};

struct Compare{

bool operator()(const A & a, const A & b) {return a.getA()==b.getA();};

};

int main () {

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

vector<A> v (t,t+10);

vector<A>::iterator it;

A m1[] = {A(1), A(2), A(3)};

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

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

return 0;

}

Program outputs:

A : First found at position: 5

B : First found at position: 0

C : First found at position: 7

D : compilation error

E : First found at position: 10

Answer: B

Question 2

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

#include <deque>

#include <iostream>

#include <algorithm>

#include <set>

using namespace std;

template<class T>struct Out {

ostream & out;

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

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

};

bool Compare(char a, char b) { return tolower(a) < tolower(b);}

int main() {

char s[]={"qwerty"};

char t1[]={"ert"};

char t2[]={"ERT"};

sort(s, s+6);

cout<<includes(s,s+6, t1,t1+3, Compare)<<" "<<includes(s,s+6, t2,t2+3, Compare)<<endl;

return 0;

}

Program outputs:

A : 0 0

B : 0 1

C : 1 0

D : 1 1

Answer: D

Question 3

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

#include <vector>

#include <set>

#include <iostream>

#include <algorithm>

using namespace std;

template<class T>struct Out {

ostream & out;

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

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

struct Sequence {

int start;

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

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

int main() {

vector<int> v1(10);

generate_n(v1.begin(), 10, Sequence(1));

random_shuffle(v1.rbegin(), v1.rend());

sort(v1.begin(), v1.end(), great<int>());

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

return 0;

}

Program outputs:

A : 8 10 5 1 4 6 2 7 9 3

B : 1 2 3 4 5 6 7 8 9 10

C : compilation error

D : 10 9 8 7 6 5 4 3 2 1

Answer: C

Question 4

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

#include <deque>

#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;}

template<class T>struct 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<deque ::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:

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

Answer: B

Question 5

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

#include <iostream>

#include <map>

#include <string>

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"};

multimap<int,string> m;

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

m.insert(pair<int,string>(second[i],first[i]));

}

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

cout<<"eleven ";

}

for(multimap<int, string>::iterator i=m.begin();i!= m.end(); i++) {

cout<<i?>second<<" ";

}cout<<m.size();

return 0;

}

A : program outputs: one two three four five six seven eight nine ten 11

B : program outputs: one two three four five six seven eight nine ten 10

C : program outputs: eleven one two three four five six seven eight nine ten 10

D : compilation error

Answer: A

Page: 1 / 46

Total 230 Questions | Updated On: Jan 26, 2025

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