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Exam Code: CPP-22-02
Exam Questions: 230
CPP - C++ Certified Professional Programmer
Updated: 16 Apr, 2026
Question 1

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<<" "; } };
 struct Sequence {
 int start;
 Sequence(int start):start(start){}
 int operator()() { return start++; } };
 int main() {
 vector<int> v1(10);
 generate_n(v1.begin(), 10, Sequence(1));
 random_shuffle(v1.rbegin(), v1.rend());
 sort(v1.begin(), v1.end(), great<int>());
 for_each(v1.begin(), v1.end(), Out<int>(cout));cout<<endl;
 return 0;
 }
Program outputs:

Options :
Answer: C
Question 2

What happens when you attempt to compile and run the following code?
 #include <iostream>
 #include <set>
 #include <list>
 using namespace std;
 int main(){
 int t[] ={ 1, 1, 2, 2, 3, 3, 4, 4, 5, 5 };
 list<int>v(t, t+10);
 multiset<int> s1(v.begin(),v.end());
 if (s1.count(3) == 2) {
 s1.erase(3);
 }
 for(multiset<int>::iterator i=s1.begin();i!= s1.end(); i++) {
 cout<<*i<<" ";
 }
 return 0;
 } 

Options :
Answer: D
Question 3

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 :
Answer: A
Question 4

What happens when you attempt to compile and run the following code?
 #include <list>
 #include <iostream>
 using namespace std;
 template<class T>
 void print(T start, T end) {
 while (start != end) {
 std::cout << *start << " "; start++;
 }
 }
 int main()
 {
 int t1[] ={ 1, 7, 8, 4, 5 };
 list<int> l1(t1, t1 + 5);
 int t2[] ={ 3, 2, 6, 9, 0 };
 list<int> l2(t2, t2 + 5);
 l1.sort();
 list<int>::iterator it = l2.begin();
 it++; it++;
l1.splice(l1.end(),l2, it, l2.end());
 print(l1.begin(), l1.end()); cout<<"Size:"<<l1.size()<<" ";
 print(l2.begin(), l2.end()); cout<<"Size:"<<l2.size()<<endl;
 return 0;
 }

Options :
Answer: A
Question 5

What happens when you attempt to compile and run the following code?
 #include <iostream>#include <map>
 #include <string>
 using namespace std;
 int main(){
 int second[] ={ 3, 4, 2, 1, 6, 5, 7, 9, 8, 10 };
 string first[] = {"three", "four", "two", "one", "six","five", "seven", "nine","eight"," ten"};
 map<int,string> m;
 for(int i=0; i<10; i++) {
 m.insert(pair<int,string>(second[i],first[i]));
 }
 if (m[11] == "eleven") {
 cout<<"eleven ";
 }
 for(map<int, string>::iterator i=m.begin();i!= m.end(); i++) {
 cout<<i?>second<<" ";
 }
 cout<<m.size();
 return 0;
 }

Options :
Answer: A
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