What is the C++ equivalent of the scanf() function?

How many C++ objects are typically used for input and output to a string?

Which of the following is an exit-controlled loop?

Copy constructors must receive their arguments by ________.

Which of the following is not a modifier function in the C++ string class?

#include <bits/stdc++.h>

using namespace std;

int main() {

    int a=(1,2,3);

    cout<<a;

return 0;

}

What is the purpose of the NULL macro?

What is the output of the following program?

int main()

{

 int i;

 for(i=0; i<5; i++)

 {

   printf("Hello");

 }

 return 0;

}

What happens if an iterator is used without proper checking?

How are the different permutations ordered in C++?