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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

#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 );

}

Show Suggested Answer Hide Answer
Suggested Answer: B

Contribute your Thoughts:

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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