Find the error in the following code:

The value returned by the library function mktime() on failure is _____.

Which of the following approach is adapted by C++?

To what kind of elements can non-modifying sequence algorithms be applied?

How can a constant function be declared in C++?

Correct syntax for conditional ternary operator ?

What is the output of the following C code?

#include<stdio.h>

int main() 

{ 

    if (1, 2, 0) 

printf ("True"); 

    else

printf ("False"); 

}

The process where an object of one class acquires the properties of an object from another class is known as _____.

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

#include <iostream>
#include <string>
#include <cstring>
using namespace std;
int main(int argc, char const *argv[])
{
const char *a = "Hello\0World";
cout << a;
return 0;
}

// passing parameters by reference
#include <iostream>
using namespace std;

void duplicate (int& a, int& b, int& c)
{
 a*=2;
 b*=2;
 c*=2;
}

int main ()
{
 int x=1, y=3, z=7;
 duplicate (x, y, z);
 cout << "x=" << x << ", y=" << y << ", z=" << z;
 return 0;
}