[Sep 14, 2021] CPP Dumps Full Questions - Exam Study Guide [Q20-Q38]

[Sep 14, 2021] CPP Dumps Full Questions - Exam Study Guide

C++ Certified Free Certification Exam Material from Free4Torrent with 230 Questions

NEW QUESTION 20
What happens when you attempt to compile and run the following code?
#include <vector>
#include <iostream>
int main ()
{
std::vector<int>v1;
for(int i = 0; i<10; i++) {v1.push_back(i); }
v1.resize(4);
std::vector<int>::iterator it = v1.end();
v1.insert(v1.end()?1, 4);
for(int i=0 ; i<= v1.size(); i++) {std::cout<<v1.at(i)+v1[i]<<" "; }std::cout<<std::endl; return 0;
}

A. program outputs 0 1 2 3 4
B. program outputs 0 2 4 8 6
C. compilation error
D. program outputs 0 2 4 6 8
E. program outputs 0 2 4 8 6 and exception

Answer: E

NEW QUESTION 21
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<<" ";
}
};
struct Sequence {
int start;
Sequence(int start):start(start){}
int operator()() { return 10*(1+(start++ %3)); }
};
int main() {
vector<int> v1(10);
generate(v1.begin(), v1.end(), Sequence(1));
unique(v1.begin(),v1.end());
for_each(v1.begin(), v1.end(), Out<int>(cout) );cout<<endl;
return 0;
}
Program outputs:

A. 30 10 20
B. 20 30 10
C. 20 30 10 20 30 10 20 30 10 20
D. compilation error

Answer: C

NEW QUESTION 22
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<<" "; } };
struct Add {
int operator()(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(), bind1st(ptr_fun (Add()), 1)); for_each(v2.rbegin(), v2.rend(), Out<int>(cout));cout<<endl;
return 0;
}
Program outputs:

A. compilation error
B. 11 10 9 8 7 6 5 4 3 2
C. 1 2 3 4 5 6 7 8 9 10
D. 10 9 8 7 6 5 4 3 2 1
E. 2 3 4 5 6 7 8 9 10 11

Answer: A

NEW QUESTION 23
What happens when you attempt to compile and run the following code?
#include <iostream>
using namespace std;
int main()
{
cout.setf(ios::oct, ios::basefield);
cout<<100<<" ";
cout.setf(ios::showbase);
cout<<100<<" ";
return 0;
}
Program outputs:

A. 144 0x64
B. 0144 100
C. 0x144 0144
D. compilation error
E. 144 0144

Answer: E

NEW QUESTION 24
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=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<<val<<" "; } };
struct Add {
B operator()(B & a, B & b) { return a+b; }};
int main() {
int t[]={1,2,3,4,5,6,7,8,9,10};
vector v1(t, t+10);
vector v2(10);
transform(v1.begin(), v1.end(), v2.begin(), bind1st(1,Add()));
for_each(v2.rbegin(), v2.rend(), Out(cout));cout<<endl;
return 0;
}
Program outputs:

A. compilation error
B. 11 10 9 8 7 6 5 4 3 2
C. 1 2 3 4 5 6 7 8 9 10
D. 10 9 8 7 6 5 4 3 2 1
E. 2 3 4 5 6 7 8 9 10 11

Answer: A

NEW QUESTION 25
What will happen when you attempt to compile and run the following code?
#include <deque>
#include <vector>
#include <iostream>
using namespace std;
class A
{
int a;
public:
A(int a) {this?>a = a; c++;}
~A() { c??;}
static int c;
};
int A::c(0);
int main ()
{
A t[] = {0, 1, 2, 3, 4, 5, 6, 7, 8 , 9};
vector<A>v1(t, t+10);
deque<A>d1(v1.begin(), v1.end());
deque<A> d2;
d2 = d1;
cout<<A::c<< endl;
return 0;
}
How many objects of type A will be created:

A. 0
B. 1
C. 2
D. 3

Answer: A

NEW QUESTION 26
Which are NOT valid instantiations of priority_queue object:
# include <iostream>
# include <deque>
# include <list>
# include <queue>
# include <vector>
using namespace std;
int main()
{
deque<int> mydeck;list<int> mylist; vector<int> myvector;
priority_queue<int> first;//line I
priority_queue<int, deque<int> > second;//line II
priority_queue<int> third(first);//line III
priority_queue<int, list<int> > fourth(third);//line IV
priority_queue<int, vector<int> > fifth(myvector.begin(), myvector.end());//line V return 0;
}

A. line II
B. line V
C. line III
D. line IV
E. line I

Answer: D

NEW QUESTION 27
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<<" "; } };
template <typename T> struct Sequence {
T start; T step;
Sequence(T start, T step):start(start), step(step){}
T operator()() { T v = start; start+=step; return v; } };
bool Less(float a, float b) { return int(a)<int(b);}
int main() {
float t[]={2.28, 1.66, 1.32, 3.94, 3.64, 2.3, 2.98, 1.96, 2.62, 1.13};
vector<float> v1; v1.assign(t, t+10);
stable_sort(v1.begin(), v1.end(), Less);
for_each(v1.begin(), v1.end(), Out<float>(cout));cout<<endl;
return 0;
}
Program outputs:

A. the exact output is impossible to determine
B. 1.13 1.32 1.66 1.96 2.28 2.3 2.62 2.98 3.64 3.94
C. 1.66 1.32 1.96 1.13 2.28 2.3 2.98 2.62 3.94 3.64
D. compilation error
E. 3.94 3.64 2.98 2.62 2.3 2.28 1.96 1.66 1.32 1.13

Answer: C

NEW QUESTION 28
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<<" "; }};
struct Sequence {
int start;
Sequence(int start):start(start){}
int operator()() {
return start++; } };
int main() {
vector<int> v1(10);
vector<int> v2(10);
generate(v1.begin(), v1.end(), Sequence(1));
reverse_copy(v1.begin(),v1.end(), v2.rbegin());
sort(v2.begin(), v2.end(), less_equal<int>());
for_each(v2.begin(), v2.end(), Out<int>(cout) );cout<<endl;
return 0;
}
Program outputs:

A. no output
B. 1 2 3 4 5 6 7 8 9 10
C. 10 9 8 7 6 5 4 3 2 1
D. compilation error

Answer: B

NEW QUESTION 29
What happens when you attempt to compile and run the following code?
# include <iostream>
# include <iomanip>
using namespace std;
int main ()
{
float f = 10.126;
cout.unsetf(ios::floatfield);
cout<<showpoint<<f<<fixed<<" "<<setprecision(2)<<f<<endl;
return 0;
}
Program outputs:

A. 10.126 10.13
B. 10.126 10.12
C. 10.1260 10.13
D. 10.126 10

Answer: C

NEW QUESTION 30
What happens when you attempt to compile and run the following code?
# include <iostream>
# include <map>
using namespace std;
int main() {
int t[] = { 1, 1, 2, 2, 3, 3, 4, 4, 5, 5 };
string s[] = { "one", "one", "two", "two", "three","three", "four", "four", "five", "five"}; map<int, string> m;
for (int i = 0; i < 10; i++) {
m.push_back(pair<int, string>(t[i], s[i]));
}
for (map<int, string>::iterator i = m.begin(); i != m.end(); i++) {
cout << i?>first << " ";
}
return 0;
}

A. compilation error
B. program outputs: 1 1 2 2 3 3 4 4 5 5
C. program outputs: one one two two three three four four five five
D. program outputs: 1 2 3 4 5
E. program outputs: one two three four five

Answer: A

NEW QUESTION 31
What happens when you attempt to compile and run the following code?
#include <iostream>
#include <algorithm>
#include <set>
using namespace std;
class A {
int a;
public:
A(int a) : a(a) {}
int getA() const { return a; } void setA(int a) { this?>a = a; }
operator int() const {return a;}
};
int main () {
int t[] = {1,2,3,2,3,5,1,2,7,3,2,1,10, 4,4,5};
set<A> s (t,t+15);
cout<<equal(s.begin(), s.end(), t)<<endl;
return 0;
}
Program outputs:

A. false
B. 0
C. 1
D. compilation error
E. true

Answer: B

NEW QUESTION 32
What happens when you attempt to compile and run the following code?
# include <iostream>
# include <deque>
# include <list>
# include <queue>
# include <vector>
using namespace std;
int main()
{
int t[] ={ 1, 2, 3, 4, 5, 6, 7, 8, 9, 10};
deque<int> mydeck(t, t+10);list<int> mylist(t,t+10);
queue<int> first;
queue<int> second(mydeck);
queue<int> third(second);
queue<int, list<int> > fourth(mylist);
mylist.clear();third.clear();
cout<<third.size()<< " "<<mydeck.size()<< endl;
cout<<fourth.size()<< " "<<mylist.size()<<endl;
return 0;
}

A. compilation error
B. program outputs: 10 0
0 10
C. program outputs: 10 10
1 0 10
D. program outputs: 0 0
0 0
E. program outputs: 10 0
10 0

Answer: A

NEW QUESTION 33
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<<" "; } };
struct Add : public binary_function<int, int, int> {
int operator() (const int & a, const int & b) const {
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(), bind1st(Add(), 1));
for_each(v2.rbegin(), v2.rend(), Out<int>(cout));cout<<endl;
return 0;
}
Program outputs:

A. 11 10 9 8 7 6 5 4 3 2
B. 1 2 3 4 5 6 7 8 9 10
C. 10 9 8 7 6 5 4 3 2 1
D. compilation error
E. 2 3 4 5 6 7 8 9 10 11

Answer: A

NEW QUESTION 34
What happens when you attempt to compile and run the following code?
#include <vector>
#include <iostream>
int main ()
{
int t[]={1,2,3,4,5};
std::vector<int>v1(t,t+5);
std::vector<int>v2(v1);
v1.resize(10);
v2.reserve(10);
std::vector<int>::iterator i = v1.begin();int ii = 0;
while (i != v1.end()) { std::cout<<i[ii]<<" ";ii??;i++; }
i = v2.begin();ii=0;
while (i != v2.end()) { std::cout<<i[ii]<<" ";ii??;i++; }
return 0;
}

A. program outputs 1 1 1 1 1 1 1 1 1 1 1 2 3 4 5
B. program outputs 1 2 3 4 5 0 0 0 0 0 1 2 3 4 5 0 0 0 0 0
C. compilation error
D. program outputs 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1

Answer: D

NEW QUESTION 35
What happens when you attempt to compile and run the following code?
# include <iostream>
# include <map>
# include <vector>
# include <sstream>
# include <string>
using namespace std;
int main() {
int t[] = { 3, 4, 2, 1, 6, 5, 7, 9, 8, 0 };
vector<int> v(t, t + 10);
map<int, string> m;
for (vector<int>::iterator i = v.begin(); i != v.end(); i++) {
stringstream s;s << *i << *i;
m.insert(pair<int, string>(*i, s.str()));
}
pair<map<int, string>::iterator, map<int, string>::iterator> range;
range = m.equal_range(6);
for (map<int, string>::iterator i = range.first; i != range.second; i++) { cout << i?>first << " ";
}
return 0;
}

A. program outputs: 6 7
B. program outputs: 6 5
C. program outputs: 5 7
D. program outputs: 6
E. program outputs: 1 5

Answer: D

NEW QUESTION 36
What happens when you attempt to compile and run the following code?
#include <set>
#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() {
int t[]={8, 10, 5, 1, 4, 6, 2, 7, 9, 3};
set s1(t, t+10);
sort(s1.begin(), s1.end());
for_each(s1.begin(), s1.end(), Out(cout));cout<<endl;
return 0;
}
Program outputs:

A. compilation error
B. 8 10 5 1 4 6 2 7 9 3
C. 1 2 3 4 5 6 7 8 9 10
D. 10 9 8 7 6 5 4 3 2 1

Answer: A

NEW QUESTION 37
What happens when you attempt to compile and run the following code?
#include <iostream>
using namespace std;
int main()
{
cout.setf(ios::oct, ios::basefield);
cout<<100<<" ";
cout.setf(ios::showbase);
cout<<100<<" ";
return 0;
}
Program outputs:

A. 144 0x64
B. 0144 100
C. 0x144 0144
D. compilation error
E. 144 0144

Answer: E

NEW QUESTION 38
......

Dumps Brief Outline Of The CPP Exam: https://www.free4torrent.com/CPP-braindumps-torrent.html

[Sep 14, 2021] CPP Dumps Full Questions - Exam Study Guide [Q20-Q38]

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