Question 1

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

#include <iostream>

#include <set>

#include <vector>

using namespace std;

int main(){

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

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

multiset<int> s1(v.begin(),v.end());

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

pair<multiset<int>::iterator,multiset<int>::iterator> range;

range = s1.equal_range(6);

while (range.first != range.second) {

cout<<*range.first<<" "; range.first++;

}

return 0;

}

Options :

A : program outputs: 6 6

B : program outputs: 5 7

C : program outputs: 5 5 6 6 7 7

D : program outputs: 5 5 7 7

E : program outputs: 1 1 6 6 5 5

Answer: A

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:

Options :

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 <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:

Options :

A : 0 0

B : 0 1

C : 1 0

D : 1 1

Answer: D

Question 4

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 5

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

#include <deque>

#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<<" "; } };

int main() {

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

deque<int> d1(t, t+10);

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

deque<int>::iterator it = upper_bound(d1.begin(), d1.end(), 4);

for_each(it, d1.end(), Out<int>(cout));cout<<endl;

return 0;

}

Program outputs:

Options :

A : 5 6 7 8 9 10

B : 4 5 6 7 8 9 10

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

D : 1 2 3 4 5

E : 1 2 3 4

Answer: A

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