C++ Institute Exam CPA Topic 8 Question 91 Discussion

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

Question #: 91
Topic #: 8

[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 Domingo at Jul 03, 2024, 05:49 PM

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Eun

8 months ago

I think it prints: toHow too, the swap function swaps the elements in the array

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Marge

9 months ago

Haha, this question is like a linguistic version of 'the chicken or the egg'. I'm just gonna try to swap my brain with the compiler and see what happens.

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Nathan

9 months ago

This is a tricky one! I'm gonna guess C) It prints: Ht. Maybe the swap() function somehow cuts the strings in half or something. Who knows?

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9 months ago

I think the answer is A) It prints: Hoto. The swap() function should reverse the order of the strings in the array.

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Alita

8 months ago

Correct, the output would be Hoto.

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Lillian

8 months ago

I think the answer is A) It prints: Hoto. The swap() function should reverse the order of the strings in the array.

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Marisha

9 months ago

I think it prints: toHow

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Nina

9 months ago

The correct answer is B) It prints: toHow. The swap() function swaps the contents of the string objects s1[0] and s1[1], so the output should be 'toHow'.

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Buck

8 months ago

That's correct! The swap() function swaps the contents of the string objects s1[0] and s1[1].

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Xenia

8 months ago

I think it prints: toHow

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