What will be the output of the following C++ code?
#include <iostream>
using namespace std;
template<typename T>
inline T square(T x)
{
T result;
result = x * x;
return result;
};
int main()
{
int i, ii;
float x, xx;
double y, yy;
i = 2;
x = 2.2;
y = 2.2;
ii = square(i);
cout << i << " " << ii << endl;
yy = square(y);
cout << y << " " << yy << endl;
}
#include <iostream>
using namespace std;
template<typename T>
inline T square(T x)
{
T result;
result = x * x;
return result;
};
int main()
{
int i, ii;
float x, xx;
double y, yy;
i = 2;
x = 2.2;
y = 2.2;
ii = square(i);
cout << i << " " << ii << endl;
yy = square(y);
cout << y << " " << yy << endl;
}A. 2 4
2.2 4.84
B. 2 4
C. error
D. 3 6
Answer: Option A
What does the 'sizeof' operator return in C++?
A. Size of a data type in bits
B. Size of a data type in bytes
C. Size of a variable in bytes
D. Size of a variable in bits
What is the purpose of the 'static' keyword in C++?
A. To declare a variable with dynamic storage duration
B. To declare a constant
C. To declare a variable with external linkage
D. To declare a variable with static storage duration
What is the difference between '++i' and 'i++' in C++?
A. None of the above
B. They both have the same effect
C. '++i' increments the value of 'i' before returning it, while 'i++' increments the value of 'i' after returning it
D. '++i' increments the value of 'i' after returning it, while 'i++' increments the value of 'i' before returning it

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