C++ Institute CPA-21-02 Exam - Topic 8 Question 45 Discussion

Actual exam question for C++ Institute's CPA-21-02 exam

Question #: 45
Topic #: 8

[All CPA-21-02 Questions]

What will happen when you attempt to compile and run the following code?

#include

using namespace std;

int fun(int);

int main()

{

int *x = new int;

*x=10;

cout << fun(*x);

return 0;

}

int fun(int i)

{

return i*i;

}

AIt will print: 100

BIt will print: 101

CIt will print: 10

DIt will print: 1

Show Suggested Answer

Suggested Answer: A

by Han at Oct 30, 2025, 03:16 PM

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Shenika

2 months ago

No way! It definitely returns 100. The logic is clear in the code.

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Freeman

3 months ago

I'm not so sure. What if it prints 10? The function just returns the input.

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Xochitl

3 months ago

Yeah, I agree. The input is 10, so 10*10 is 100.

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Tracie

3 months ago

Just to clarify, it returns the square of 10, right?

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Genevieve

4 months ago

Nah, it's definitely not 101 or 10.

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Buck

4 months ago

Wait, are you sure? I thought it might print something else.

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Deonna

4 months ago

Totally agree, it's definitely 100!

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Lelia

4 months ago

It will print: 100

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Aliza

4 months ago

A is the correct answer. This is a simple program that demonstrates the use of dynamic memory allocation and function calls.

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Celestina

4 months ago

Haha, I bet the answer is B. The code is clearly broken, and it will print some random number like 101. Programmers can be so creative!

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Benedict

5 months ago

I think the answer is C. The code is printing the value of x, which is 10, not the result of the function call.

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Letha

5 months ago

Definitely A. The code is straightforward, and the output will be the square of 10, which is 100.

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Rebbeca

5 months ago

The answer is A. The function fun() will return the square of the value passed to it, which is 10.

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Kyoko

5 months ago

I practiced a similar question where a function returned the square of a number. I feel like the answer should be 100.

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Cordell

6 months ago

I'm not entirely sure, but I remember something about dereferencing pointers. Could it be that it prints 10 instead?

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Vince

6 months ago

I think it will print: 100. The function squares the input.

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Loreta

6 months ago

I’m confused about the memory allocation part. Does it affect the output? I hope it still prints 100 like I think it does.

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Barbra

6 months ago

I think the code will print 100 because the function squares the value of *x, which is 10.

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Buck

7 months ago

I think the key here is understanding how dynamic memory allocation and the fun() function work. If we can grasp those concepts, the answer should be straightforward.

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Madalyn

7 months ago

I'm pretty confident the answer is A. The fun() function simply squares the input, and since we pass 10 to it, the output should be 100.

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Casie

7 months ago

Hmm, I'm not sure. I'd need to carefully step through the code to understand exactly what's happening. The dynamic allocation and lack of deallocation is making me hesitant.

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Arleen

7 months ago

I'm a bit confused. Doesn't the code have a memory leak since it doesn't delete the dynamically allocated integer? I'm not sure if that would affect the output.

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Noelia

7 months ago

I think the answer is A. The code dynamically allocates an integer, sets its value to 10, and then passes that value to the fun() function, which returns the square of the input.

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