Question 1

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

#include <iostream>

using namespace std;

int main ()

{

float f1 = 10.0;

float f2 = 10.123;

cout<<noshowpoint<<f1<<" "<<f2;

return 0;

}

Program outputs:

Options :

A : 10 10

B : 10.0 10.123

C : compilation error

D : 10 10.123

Answer: D

Question 2

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

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

Answer: B

Question 3

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

#include <iostream>

#include <string>

using namespace std;

template <class T>

class A {

T_v;

public:

A() {}

A(T v): _v(v){}

T getV() { return _v; }

void add(T & a) { _v+=a; }

};

int main()

{

A<string>a("Hello"); string s(" world!");

a.add(s);

cout << a.getV() <<endl;

return 0;

}

Options :

A : program will display: Hello world!

B : program will not compile

C : program will display: Hello

D : program will run without any output

Answer: A

Question 4

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

Question 5

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

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