Question 1

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;

}

Options :

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

Question 2

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:

Options :

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 3

What will be output of the program when you attempt to compile and run the following

code?

#include <iostream>

#include <map>

#include <vector>

#include <string>

using namespace std;

int main(){

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

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

multimap<int,string> m;for(int i=0; i<10; i++) {

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

}

m[0]="ten";

m.insert(pair<int,string>(1,"eleven"));

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

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

}

return 0;

}

Options :

A : zero one two three four five six seven eight nine

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

C : zero eleven two three four five six seven eight nine

D : ten eleven two three four five six seven eight nine

E : compilation error

Answer: A

Question 4

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;

}

Options :

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

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"};

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

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

}

cout<<m.size();

return 0;

}

Options :

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 : runtime exception

Answer: A