Classes and Objects in C++ MCQ question and answer with solution | C++ Programimg MCQs

#include <iostream>
using namespace std;
class numbers
{
    private:
    int m_nValues[10];
    public:
    int& operator[] (const int nValue);
};
int& numbers::operator[](const int nValue)
{
    return m_nValues[nValue];
}
int main()
{
    numbers N;
    N[5] = 4;
    cout <<  N[5];
    return 0;
}

#include <iostream>
using namespace std;
int main()
{
    typedef int num;
    typedef char let;
    let w = "steve";
    num a = 10, b = 15;
    num c = a + w;
    cout << c;
    return 0;
}

#include <iostream> 
#include <string>
using namespace std; 
int main(int argc, char const *argv[])
{
	char str[10];
	cin>>str;
	cout<<str;
	return 0;
}