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C++ Institute CPP Exam - Topic 9 Question 97 Discussion

Actual exam question for C++ Institute's CPP exam
Question #: 97
Topic #: 9
[All CPP Questions]

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

#include

#include

#include

using namespace std;

int main ()

{

int t[] = {1, 2 ,3 ,4 ,5};

vectorv1(t, t+5);

dequed1;

d1.assign(v1.end(), v1.begin());

for(int i=0; i

{

cout<

}

cout<

return 0;

}

Show Suggested Answer Hide Answer
Suggested Answer: C

by Evangelina at Sep 13, 2024, 10:09 AM

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Francesco
3 months ago
No compilation errors here, everything looks fine.
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Yolande
3 months ago
I thought it would be in reverse order, but I guess not!
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Alexis
3 months ago
Wait, isn't there a mistake in the assign function?
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Tasia
4 months ago
Totally agree, it's just copying the vector.
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Elli
4 months ago
The code will actually output 1 2 3 4 5.
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Carey
4 months ago
I remember that `assign` takes two iterators, but I thought the order was important. I hope it doesn't cause a segmentation fault!
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Rozella
4 months ago
I feel like there might be a compilation error, but I can't pinpoint if it's in line 8 or 10. I need to double-check the syntax for `assign`.
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Gerald
4 months ago
I practiced a similar question where we had to use `assign`, but I can't recall if the parameters were in the right order here.
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Helga
5 months ago
I think the code should compile fine, but I'm not sure about the output. I remember something about the order of elements in deques.
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Elden
5 months ago
I'm pretty confident that the answer is A. The `assign()` function on the `deque` will copy the elements from the `vector` in reverse order, so the output should be 5 4 3 2 1.
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Franchesca
5 months ago
Alright, let me walk through this step-by-step. The `vector` is initialized with the values 1, 2, 3, 4, 5. Then, the `deque` is assigned the elements of the `vector` in reverse order. So, I think the output will be 5 4 3 2 1.
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Bok
5 months ago
Okay, let me see here. The code is trying to assign the elements of the `vector` to the `deque` in reverse order. I think the answer might be A, but I'm not 100% sure.
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Ilda
5 months ago
Hmm, this looks like a tricky one. I'll need to carefully read through the code and think about the behavior of the `deque` and `vector` data structures.
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Annita
5 months ago
I'm a bit confused by the `assign()` function call on the `deque`. I'll need to double-check the documentation to make sure I understand how that works.
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Paulina
5 months ago
Serializing the list to JSON before returning it seems like an unnecessary step. I'll go with the option that mentions the access modifiers.
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Brittani
10 months ago
C'mon, this is a trick question, right? I mean, who writes code with `deque` and `vector` like that? Probably some mad scientist trying to break the laws of programming or something.
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Clement
10 months ago
I'm gonna go with option B, 1 2 3 4 5. Seems like the most straightforward answer, and I don't see any obvious bugs in the code. Gotta love it when the solution is just that simple!
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Paz
9 months ago
User3: I'm going with B too. Simple and straightforward.
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Leatha
9 months ago
User2: Yeah, I agree. The code seems fine, so B sounds right.
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Shenika
9 months ago
User1: I think it's option B, 1 2 3 4 5. Looks good to me.
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Diane
10 months ago
Whoa, this code is wild! I bet it'll blow up like a fireworks display, but in a really bad way. Segmentation fault, anyone?
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Lorriane
10 months ago
This code will not compile due to a syntax error in line 8. The correct order of the range should be `v1.begin(), v1.end()`.
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Taryn
8 months ago
C) compilation error in line 8
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Roosevelt
8 months ago
This code will not compile due to a syntax error in line 8. The correct order of the range should be `v1.begin(), v1.end()`.
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Coral
8 months ago
A) program outputs 5 4 3 2 1
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Stevie
11 months ago
The output should be 1 2 3 4 5, as the `assign()` function of `deque` copies the elements from the `vector` in the same order.
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Alishia
9 months ago
C) compilation error in line 8
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Georgeanna
9 months ago
B) program outputs 1 2 3 4 5
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Nida
10 months ago
A) program outputs 5 4 3 2 1
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India
11 months ago
But doesn't d1.assign(v1.end(), v1.begin()) reverse the order? So, it should be A).
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Ressie
11 months ago
No, I believe the correct answer is B) program outputs 1 2 3 4 5.
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India
11 months ago
I think the answer is A) program outputs 5 4 3 2 1.
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