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Exam Code: CPP-22-02
Exam Questions: 230
CPP - C++ Certified Professional Programmer
Updated: 15 Jan, 2026
Question 1

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<float>(a);
 return 0;
 }

Options :
Answer: A
Question 2

What happens 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);
 multiset<int> s1(v.begin(),v.end());
 s1.insert(v.begin(),v.end());
 pair<multiset<int>::iterator,multiset<int>::iterator> range;
 range = s1.equal_range(6);
 while (range.first != range.second) {
 cout<<*range.first<<" "; range.first++;
 }
 return 0;
 }

Options :
Answer: A
Question 3

What happens when you attempt to compile and run the following code?
 #include <iostream>
 #include <algorithm>
 #include <vector>
 using namespace std;
 class A {
 int apublic:
 A(int a) : a(a) {}
 int getA() const { return a; } void setA(int a) { this?>a = a; }
 bool operator==(A & b) { return a == b.a; }
 };
 struct Compare{
 bool operator()(const A & a, const A & b) {return a.getA()==b.getA();};
 };
 int main () {
 int t[] = {1,2,3,4,5,1,2,3,4,5};
 vector<A> v (t,t+10);
 vector<A>::iterator it;
 A m1[] = {A(1), A(2), A(3)};
 it = search (v.begin(), v.end(), m1, m1+3, Compare());
 cout << "First found at position: " << it?v.begin() << endl;
 return 0;
 }
Program outputs:

Options :
Answer: B
Question 4

What happens when you attempt to compile and run the following code?
 #include <deque>
 #include <iostream>#include <algorithm>
 #include <functional>
 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[]={20, 30, 10, 20, 30, 10, 20, 30, 10, 20};
 deque<B> d1(t, t+10);
 sort(d1.begin(), d1.end(), greater<B>());
 pair<deque<B> ::iterator, deque<B>::iterator > result = equal_range(d1.begin(), d1.end(),
B(20), greater<B>());
 for_each(result.first, result.second, Out<B>(cout));cout<<endl;
 return 0;
 }
Program outputs:

Options :
Answer: B
Question 5

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:

Options :
Answer: A
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