C++ Institute Exam CPA Topic 5 Question 93 Discussion

Actual exam question for C++ Institute's CPA exam

Question #: 93
Topic #: 5

[All CPA Questions]

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

#include

using namespace std;

int main()

{

string s1[]= {"How" , "to" };

s1[0].swap(s1[1]);

for (int i=0; i<2; i++) {

cout << s1[i];

}

return( 0 );

}

AIt prints: Hoto

BIt prints: toHow

CIt prints: Ht

DIt prints: to

Show Suggested Answer

Suggested Answer: B

by Yesenia at Jul 15, 2024, 02:22 AM

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Willetta

4 months ago

I'm going with D) It prints: to. Surely, the swap() function will only affect the first two elements, and the rest will be ignored, right?

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Lynelle

3 months ago

Yeah, I agree. The swap() function only affects the first two elements.

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Fabiola

4 months ago

I think it prints: to

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Abel

4 months ago

Haha, this question is a classic! The answer is clearly B) It prints: toHow. Swapping the elements of a string array is like a magic trick, isn't it?

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Deandrea

4 months ago

I think the answer is A) It prints: Hoto. The swap() function will swap the elements of the string array, but the output will be concatenated.

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Alfreda

3 months ago

Oh, I see. Thanks for clarifying!

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Blair

4 months ago

No, it actually prints: toHow.

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Jacqueline

4 months ago

I think the answer is A) It prints: Hoto.

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Kris

4 months ago

I think it prints: toHow because the swap function swaps the elements at index 0 and 1

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Magda

4 months ago

The correct answer is B) It prints: toHow. The swap() function will swap the elements of the string array, so the output will be reversed.

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Frank

4 months ago

Oh, I see. Thanks for clarifying!

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Deandrea

4 months ago

Actually, it prints: toHow

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Tijuana

4 months ago

No, I believe it prints: Hoto

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Dahlia

4 months ago

I think the answer is B) It prints: toHow

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Fernanda

4 months ago

I'm not sure, but I think it prints: toHow as well

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Brice

5 months ago

I believe it prints: toHow because the swap function swaps the elements in the array

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Long

5 months ago

I think it prints: toHow

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