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

#include < vector >

#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 t1[]={3,2,4,1,5};

int t2[]={5,6,8,2,1};

vector < int > v1(10);

sort(t1, t1+5);

sort(t2, t2+5);

set_difference(t1,t1+5,t2,t2+5,v1.begin());

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

return 0;

}

Program outputs:

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

#include < iostream >

#include < algorithm >

#include < deque >

#include < vector >

using namespace std;

bool identical(int a, int b) {

return b == 2*a?true:false;

}

int main() {

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

int u[] = {2,4,6,4,6,10,2,4,14,6,4,2,20,8,8,5};

vector < int > v1(t, t + 15);

deque < int > d1(u, u + 15);

pair < deque < int > ::iterator, vector < int > ::iterator > result;

result = mismatch(d1.begin(), d1.end(), v1.begin(), identical); //Line I

if (result.first == d1.end() & & result.second == v1.end()) { //Line II

cout < < "Identical\n";

} else {

cout < < "Not identical\n";

}

return 0;

}

Program outputs:

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

#include < iostream >

#include < algorithm >

#include < vector >

#include < set >

using namespace std;

int main() {

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

vector < int > v1(t, t + 15);

set < int > s1(t, t + 15);

pair < set < int > ::iterator, vector < int > ::iterator > resultSet = mismatch(s1.begin(), s1.end(), v1.begin());

cout < < *resultSet.first < < " " < < *resultSet.second < < endl;

return 0;

}

Program outputs:

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

#include < iostream >

#include < algorithm >

#include < map >

using namespace std;

void myfunction(pair < int, int > i) {

cout < < " " < < i.first;

}

int main() {

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

map < int, int > m;

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

m[i]=t[i] ;

}

for_each(m.begin(), m.end(), myfunction);

return 0;

}

Program outputs:

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

#include < iostream >

#include < fstream >

#include < string >

#include < list >

#include < algorithm >

#include < iomanip >

using namespace std;

class B { int val;

public:

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

int getV() const {return val;}

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

template < class T > struct Out {

ostream & out;

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

void operator() (const T & val ) {out < < setw(3) < < hex < < val; } };

int main () {

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

fstream f("test.out", ios::trunc|ios::out);

list < B > l(t, t+10);

for_each(l.begin(), l.end(), Out < B > (f));

f.close();

f.open("test.out");

for( ; f.good() ; ) {

B i;

f > > i;

cout < < i < < " ";

}

f.close();

return 0;

}

What happens 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; }

void add(string & a) {

_v.insert(0, a);

}

};

int main()

{

A < string > a("Hello");

string s(" world!");

a.add(s);

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

return 0;

}

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

#include < iostream >

#include < algorithm >

#include < vector >

using namespace std;

int main () {

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

vector < int > v (t,t+15);

vector < int > ::iterator it = search_n(v.begin(), v.end(), 4, 2);

cout < < it?v.begin() < < endl;

return 0;

}

Program outputs:

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

#include < vector >

#include < iostream >

#include < algorithm >

#include < functional >

using namespace std;

template < class T > struct Out {

ostream & out;

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

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

int Add(int a, int b) {

return a+b;

}

int main() {

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

vector < int > v1(t, t+10);

vector < int > v2(10);

transform(v1.begin(), v1.end(), v2.begin(), bind2nd(ptr_fun (Add),1));

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

return 0;

}

Program outputs:

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

#include < vector >

#include < iostream >

#include < algorithm >

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() {

B t1[]={3,2,4,1,5};

B t2[]={6,10,8,7,9};

vector < B > v1(10);

sort(t1, t1+5);

sort(t2, t2+5);

merge(t1,t1+5,t2,t2+5,v1.begin());

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

return 0;

}

Program outputs:

What will happen when you attempt to compile and run the code below, assuming that you enter the following sequence: 64 100 < enter > ?

#include < iostream >

#include < string >

#include < sstream >

#include < iomanip >

using namespace std;

int main ()

{

string s;

getline(cin, s);

stringstream input(s);

stringstream output;

for( ; !input.fail() ; )

{

int i;

input > > hex > > i;

output < < setw(4) < < i;

}

cout < < output.str();

return 0;

}

What will be the result assuming that user will enter following sequence: 64 100: