C++ Institute Exam CPA-21-02 Topic 7 Question 27 Discussion

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

Question #: 27
Topic #: 7

[All CPA-21-02 Questions]

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

#include

using namespace std;

int main()

{

int i = 4;

while(i >= 0) {

cout<

i??;

}

return 0;

}

AIt prints:''43210''

BIt prints:''3210''

CIt prints: ''3210?1''

DNone of these

Show Suggested Answer

Suggested Answer: A

by Elina at Sep 18, 2024, 05:57 AM

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Makeda

8 months ago

Hmm, I think the answer is B. The post-decrement operator will cause the value of i to be printed first, and then it will be decremented. So the output should be '3210'.

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Iluminada

8 months ago

Haha, that's a classic one! I remember getting tripped up by the post-decrement operator before. This is going to be a good test of our attention to detail.

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Therese

8 months ago

User 3: None of these

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Reta

8 months ago

User 2: I think it prints: '3210'

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Domitila

8 months ago

It prints: '3210?1'

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Magnolia

9 months ago

I'm not sure, but I think it will print '3210'

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Harley

9 months ago

Wait, what's that i-- thing doing? Isn't that supposed to decrement the value of i?

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Donte

9 months ago

Okay, let's think this through. The code is incrementing the value of i by 1 in each iteration, so it should print the numbers in descending order, right?

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