최신C++ Institute C++ Certified Professional Programmer - CPP무료샘플문제
문제1
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_union(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 <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_union(t1,t1+5,t2,t2+5,v1.begin());
for_each(v1.begin(), v1.end(), Out<int>(cout));cout<<endl;
return 0;
}
Program outputs:
정답: B
문제2
What happens when you attempt to compile and run the following code?
#include <iostream>
#include <algorithm>
#include <vector>
#include <deque>
#include <set>
using namespace std;
struct display {
void operator() (int i) {cout << " " << i;}
};
int main() {
int t[] = { 10, 5, 9, 6, 2, 4, 7, 8, 3, 1 };
vector<int> v1(t, t + 10);
deque<int> d1(t, t + 10);
set<int> s1(t, t + 10);
for_each(v1.begin(), v1.end(), display); //Line I
for_each(d1.begin(), d1.end(), *(new display())); // Line II
for_each(s1.begin(), s1.end(), display()); // Line III
return 0;
}
What happens when you attempt to compile and run the following code?
#include <iostream>
#include <algorithm>
#include <vector>
#include <deque>
#include <set>
using namespace std;
struct display {
void operator() (int i) {cout << " " << i;}
};
int main() {
int t[] = { 10, 5, 9, 6, 2, 4, 7, 8, 3, 1 };
vector<int> v1(t, t + 10);
deque<int> d1(t, t + 10);
set<int> s1(t, t + 10);
for_each(v1.begin(), v1.end(), display); //Line I
for_each(d1.begin(), d1.end(), *(new display())); // Line II
for_each(s1.begin(), s1.end(), display()); // Line III
return 0;
}
정답: A
문제3
What will happen 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);
set<int> s1(v.begin(),v.end());
s1.insert(v.begin(),v.end());
bool found = s1.find(7);
if (found){
cout<<"Element found!\n";
}else {
cout<<"Element not found!\n";
}
return 0;
}
What will happen 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);
set<int> s1(v.begin(),v.end());
s1.insert(v.begin(),v.end());
bool found = s1.find(7);
if (found){
cout<<"Element found!\n";
}else {
cout<<"Element not found!\n";
}
return 0;
}
정답: D
문제4
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;
}
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;
}
정답: E
문제5
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};
int t2[]={5,6,8,2,1};
vector<B> v1(10,0);
sort(t1, t1+5);
sort(t2, t2+5);
set_union(t1,t1+5,t2,t2+5,v1.begin());
for_each(v1.begin(), v1.end(), Out<B>(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};
int t2[]={5,6,8,2,1};
vector<B> v1(10,0);
sort(t1, t1+5);
sort(t2, t2+5);
set_union(t1,t1+5,t2,t2+5,v1.begin());
for_each(v1.begin(), v1.end(), Out<B>(cout));cout<<endl;
return 0;
}
Program outputs:
정답: A
문제6
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, 0, 1, 2, 3, 4, 0 };
vector<int> v(t, t+10);
multimap<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()));
}
for(multimap<int, string>::iterator i=m.begin();i!= m.end(); i++) {
cout<<*i<<" ";
}
return 0;
}
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, 0, 1, 2, 3, 4, 0 };
vector<int> v(t, t+10);
multimap<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()));
}
for(multimap<int, string>::iterator i=m.begin();i!= m.end(); i++) {
cout<<*i<<" ";
}
return 0;
}
정답: B
문제7
What happens when you attempt to compile and run the following code?
#include <iostream>
#include <algorithm>
#include <vector>
using namespace std;
void myfunction(int i) {
cout << " " << i;
}
int main() {
int t[] = { 10, 5, 9, 6, 2, 4, 7, 8, 3, 1 };
vector<int> v1(t, t + 10);
copy_backward(t, t+10, v1.rend());
for_each(v1.begin(), v1.end(), myfunction);
return 0;
}
Program outputs:
What happens when you attempt to compile and run the following code?
#include <iostream>
#include <algorithm>
#include <vector>
using namespace std;
void myfunction(int i) {
cout << " " << i;
}
int main() {
int t[] = { 10, 5, 9, 6, 2, 4, 7, 8, 3, 1 };
vector<int> v1(t, t + 10);
copy_backward(t, t+10, v1.rend());
for_each(v1.begin(), v1.end(), myfunction);
return 0;
}
Program outputs:
정답: E
문제8
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);
int number = count(v.begin(), v.end(), 2);
cout<< number<<endl;
return 0;
}
Program outputs:
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);
int number = count(v.begin(), v.end(), 2);
cout<< number<<endl;
return 0;
}
Program outputs:
정답: E
문제9
What will happen when you attempt to compile and run the code below, assuming that you enter the following sequence: one two three<enter>?
# include <iostream>
# include <string>
using namespace std;
int main ()
{
string a;
cin.getline(a);
cout<<a<<endl;
return 0;
}
Program will output:
What will happen when you attempt to compile and run the code below, assuming that you enter the following sequence: one two three<enter>?
# include <iostream>
# include <string>
using namespace std;
int main ()
{
string a;
cin.getline(a);
cout<<a<<endl;
return 0;
}
Program will output:
정답: A
문제10
What happens when you attempt to compile and run the following code?
# include <vector>
# include <iostream>
# include <algorithm>
using namespace std;
template<typename T>class B { T val;
public:
B(T v):val(v){}
T getV() const {return val;} bool operator < (const B & v) const { return val<v.val;} }; template<class T>ostream & operator <<(ostream & out, const B<T> & 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<<" "; } };
bool Less(const B<float> &a, const B<float> &b) { return int(a.getV())<int(b.getV());} 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<B<float> > v1; v1.assign(t, t+10);
stable_sort(v1.begin(), v1.end(), Less);
for_each(v1.begin(), v1.end(), Out<B<float> >(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;
template<typename T>class B { T val;
public:
B(T v):val(v){}
T getV() const {return val;} bool operator < (const B & v) const { return val<v.val;} }; template<class T>ostream & operator <<(ostream & out, const B<T> & 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<<" "; } };
bool Less(const B<float> &a, const B<float> &b) { return int(a.getV())<int(b.getV());} 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<B<float> > v1; v1.assign(t, t+10);
stable_sort(v1.begin(), v1.end(), Less);
for_each(v1.begin(), v1.end(), Out<B<float> >(cout));cout<<endl;
return 0;
}
Program outputs:
정답: E
문제11
What happens when you attempt to compile and run the following code?
#include <iostream>
using namespace std;
template<class A>
void f(A &a)
{
cout<<1<<endl;
}
void f(int &a)
{
cout<<2<<endl;
}
int main()
{
int a = 1;
f(a);
return 0;
}
What happens when you attempt to compile and run the following code?
#include <iostream>
using namespace std;
template<class A>
void f(A &a)
{
cout<<1<<endl;
}
void f(int &a)
{
cout<<2<<endl;
}
int main()
{
int a = 1;
f(a);
return 0;
}
정답: C
문제12
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 main() {
int t1[]={3,2,4,1,5};
int t2[]={6,10,8,7,9};
vector<int> v1(5);
transform(t1,t1+5,t2,v1.rbegin(), plus<int>());
for_each(v1.rbegin(), v1.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>
#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 main() {
int t1[]={3,2,4,1,5};
int t2[]={6,10,8,7,9};
vector<int> v1(5);
transform(t1,t1+5,t2,v1.rbegin(), plus<int>());
for_each(v1.rbegin(), v1.rend(), Out<int>(cout));cout<<endl;
return 0;
}
Program outputs:
정답: E
문제13
What will happen when you attempt to compile and run the following code?
#include <iostream>
using namespace std;
class C {};
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<int> b;
A<C>a;
a.add(C());
cout << b.getV() <<endl;
return 0;
}
What will happen when you attempt to compile and run the following code?
#include <iostream>
using namespace std;
class C {};
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<int> b;
A<C>a;
a.add(C());
cout << b.getV() <<endl;
return 0;
}
정답: D