C++ Institute Exam CPA-21-02 Topic 1 Question 15 Discussion

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

Question #: 15
Topic #: 1

[All CPA-21-02 Questions]

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

#include

using namespace std;

int op(int x, int y);

float op(int x, float y);

int main()

{

int i=1, j=2, k;

float f=0.3;

k = op(i, j);

cout<< k << "," << op(0, f);

return 0;

}

int op(int x, int y)

{

return x+y;

}

float op(int x, float y)

{

return x?y;

}

AIt prints: 3,1

BIt prints: 3,?0.3

CIt prints: 3,0

DIt prints: 0,0

Show Suggested Answer

Suggested Answer: C

by Novella at May 09, 2024, 12:01 AM

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Stefany

2 months ago

Ah, the old 'let's confuse the programmer with some weird function overloading' trick. I'm gonna have to go with B) It prints: 3,?0.3. The first op function is straightforward, but the second one is a real head-scratcher. Maybe the developer was trying to channel their inner Gandalf or something.

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Nadine

23 days ago

Yeah, it's like they wanted to add some mystery to the code. But B) It prints: 3,?0.3 makes sense.

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Lorrie

1 months ago

I think you're right, that second op function is definitely throwing a curveball.

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Yuette

2 months ago

Wow, this code is a real head-scratcher. I'm going to have to go with D) It prints: 0,0. The second op function is completely messed up, and I'm not even sure what it's supposed to be doing. Maybe the developer was trying to impress the interviewer with some fancy C++ tricks, but it just ended up being a disaster.

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Carrol

13 days ago

The code is definitely confusing. I also think it prints: 3,0. The second op function is not functioning as expected.

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Willis

1 months ago

Yeah, the second op function is a mess. It's returning 0 no matter what. So, the output will be: 3,0.

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Melodie

1 months ago

I agree, the second op function is definitely not correct. It should have been returning y instead of x?y. So, it prints: 3,0.

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Felix

1 months ago

I think it prints: 3,0. The first op function adds the two integers, and the second op function returns 0 for any value of x.

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Coral

2 months ago

Hmm, this is a tricky one. I'm going to go with C) It prints: 3,0. The first op function is correct, but the second one is clearly broken. I wonder if the developer was trying to do some kind of ternary operation, but it's not working as expected.

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Ashton

2 months ago

This code has a problem with the second op function. The return statement 'x?y' is not valid C++ syntax. I think the correct answer is B) It prints: 3,?0.3.

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Vincent

1 months ago

User 2

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Elly

2 months ago

User 1

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Evette

2 months ago

The output should be 3,0.3. The first call to op(i, j) will return the sum of i and j, which is 3. The second call to op(0, f) will return 0.3, since the first parameter is an integer and the second parameter is a float.

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