C++ Institute Exam CPP Topic 4 Question 79 Discussion

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

Question #: 79
Topic #: 4

[All CPP Questions]

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

#include

using namespace std;

void print(int v) { cout<

struct Sequence {

int start;

Sequence(int start):start(start){}

int operator()() {

return 10*(1+(start++ %3));

}

};

int main() {

vector v1(10);

generate_n(v1.begin(), 10, Sequence(1));

remove(v1.begin(), v1.end(), 10);

for_each(v1.begin(), v1.end(), print);cout<

return 0;

}

Program outputs:

A20 30 10 20 30 10 20 30 10 20

B20 30 20 30 20 30 20

C20 30 20 30 20 30 20 30 10 20

Dcompilation error

Show Suggested Answer

Suggested Answer: C

by Franklyn at Mar 08, 2024, 03:58 PM

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Stefania

5 months ago

I believe the correct answer is D) compilation error. I don't think the remove function is being used correctly in this code.

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Delpha

5 months ago

I'm not so sure about that. I think the answer might be C) 20 30 20 30 20 30 20 30 10 20. It could be because of the remove function.

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Rossana

5 months ago

I agree with Gussie. The code generates a sequence with values 20, 30, and 10, and then removes 10 from the vector.

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Gussie

5 months ago

I think the correct answer is A) 20 30 10 20 30 10 20 30 10 20.

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Karan

6 months ago

Hmm, I see your point. I might have to reconsider my answer.

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Luis

6 months ago

I'm with Sabrina on this one, the answer should be C.

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Sabrina

6 months ago

Because the remove function removes elements with the specific value of 10 in the vector.

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Karan

7 months ago

But why do you think that?

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Sabrina

7 months ago

I disagree, I believe the correct answer is C.

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Karan

7 months ago

I think the answer is A.

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