Pointers and References in C++ MCQ question and answer with solution | C++ Programimg MCQs

#include<iostream>
using namespace std;
 
int &fun()
{
    int x = 10;
    return x;
}
int main()
{
    fun() = 30;
    cout << fun();
    return 0;
}

#include <iostream>
using namespace std;
int main()
{
    int arr[] = {4, 5, 6, 7};
    int *p = (arr + 1);
    cout << *p;
    return 0;
}

#include <iostream>
using namespace std;
int main()
{
    int a = 9;
    int & aref = a;
    a++;
    cout << "The value of a is " << aref;
    return 0;
}