C++ miscellaneous MCQ question and answer with solution | C++ Programimg MCQs

#include <iostream>
using namespace std;
class Testpm 
{
    public:
    void m_func1() 
    { 
        cout << "func1\n";
    }
    int m_num;
};
void (Testpm :: *pmfn)() = &Testpm :: m_func1;
int Testpm :: *pmd = &Testpm :: m_num;
int main() 
{
    Testpm ATestpm;
    Testpm *pTestpm = new Testpm;
    (ATestpm.*pmfn)();
    (pTestpm ->* pmfn)();
    ATestpm.*pmd = 1;
    pTestpm ->* pmd = 2;
    cout << ATestpm.*pmd << endl
    << pTestpm ->* pmd << endl;
}

#include <iostream>
#include <algorithm>
using namespace std;
bool myfn(int i, int j) 
{
    return i < j;
}
int main () 
{
    int myints[ ] = {3, 7, 2, 5, 6, 4, 9};
    cout <<  *min_element(myints, myints + 7, myfn) << '\n';
    cout << *max_element(myints, myints + 7, myfn) << '\n';
    return 0;
}

#include <iostream>
#include <complex>
using namespace std;
int main()
{
	complex <double> cn(3.0, 4.0);
	cout<<"proj"<<cn<<" : "<<proj(cn)<<endl;
	return 0;
}

#include<iostream>
using namespace std;
int main()
{
    int a = 5;
    auto check = [&]() 
    {
	a = 10;
    };
    check();
    cout<<"Value of a: "<<a<<endl;
    return 0;
}

#include <iostream>
#include <deque>
using namespace std;
int main ()
{
    deque<int> mydeque (5);  
    deque<int>::reverse_iterator rit = mydeque.rbegin();
    int i = 0;
    for (rit = mydeque.rbegin(); rit!= mydeque.rend(); ++rit)
        *rit = ++i;
    for (deque<int> :: iterator it = mydeque.begin();
    it != mydeque.end(); ++it)
    cout << ' ' << *it;
    return 0;
}