Which of the following is the correct operator to compare two variables? 

  Which function is used to check whether a character is a number?

#include<stdio.h>

#def val 32

int main()

{

char s[]="abekus";

*(s+0) &= ~val;

*(s+4) &= ~val;

return 0;

}

#include <bits/stdc++.h>

using namespace std;

int main() {

    char *ptr ;

    ptr = "hello";

    cout<<*ptr;

return 0;

}

The main purpose of a garbage collector is to free the programmer from worrying about _____.

#include<stdio.h>

int main()

{

static int num = 5;

printf("%d ", num--);

if(num)

main();

return 0;

}

How many times is 'abc' printed in the following code?

int main()

{

int a = 0;

while(a++)

printf("abc");

return 0;

}

What is the output of the following code?

#include<iostream.h>

void Execute(int &x, int y = 200)

{

 int TEMP = x + y;

 x+= TEMP;

 if(y!=200)

     cout<<TEMP<<x<<y"--";

}

int main()

{

 int A=50, B=20;

 cout<<A<<B<<"--";

 Execute(A,B);

 cout<<A<<B<<"--";

 return 0;

}

  Which of the following is correct about this pointer in C++?

What will be the output of the following C++ code?

#include <iostream>

using namespace std;

int main()

{

char first, second;

cout << "Enter a word: ";

first = cin.get();

cin.ignore(); // Clear the input buffer

second = cin.get();

cout << first << endl;

cout << second << endl;

return 0;

}