All keywords in C are in

Which of the following is not a loop structure?

What is the correct way to access the first element of a pair in c++

 As the number of frames available increases, the number of page faults decreases. 

Which of the following accesses the seventh element stored in an array?

 Which of the following cannot be used with the virtual keyword? 

The C preprocessor is a conceptual first step during the compilation process.

Is the following statement True or False?

Constant 0 evaluates to an integer or the null pointer—depending on the context. 

int  i = 0;

int *p = 0;

In which of the following ways are constants declared in programming?

#include <iostream>
using namespace std;

int sum (int a, int b)
{
 return a+b;
}

double sum (double a, double b)
{
 return a+b;
}

int main ()
{
 cout << sum (10,20) << '\n';
 cout << sum (1.0,1.5) << '\n';
 return 0;
}