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C++ Institute CPP Exam - Topic 8 Question 55 Discussion

What happens when you attempt to compile and run the following code?#include #include #include using namespace std;bool compare(int a, int b) { return a == b; }int main () {int t[] = {1,2,3,4,5,1,2,3,4,5};vector v (t,t+10);vector::iterator it = v.begin();int m1[] = {1, 2, 3};while ( (it = find_first_of (it, v.end(), m1, m1+3)) != v.end()) {cout
E) program will run forever
A) program outputs: 0 1 2 5 6 7
B) program outputs: 0 5
C) program outputs: 0 0
D) compilation error

C++ Institute CPP Exam - Topic 8 Question 55 Discussion

Actual exam question for C++ Institute's CPP exam
Question #: 55
Topic #: 8
[All CPP Questions]

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

#include

#include

#include

using namespace std;

bool compare(int a, int b) { return a == b; }

int main () {

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

vector v (t,t+10);

vector::iterator it = v.begin();

int m1[] = {1, 2, 3};

while ( (it = find_first_of (it, v.end(), m1, m1+3)) != v.end()) {

cout<

}

cout<< endl;

return 0;

}

Show Suggested Answer Hide Answer
Suggested Answer: E

by Helaine at Sep 19, 2022, 02:38 PM

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Linwood
7 months ago
Wait, does it really use `==` in the compare function? That's odd.
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Stevie
7 months ago
Nah, it outputs 0 1 2 5 6 7 for sure!
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Earlean
7 months ago
Definitely a compilation error, right?
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Candida
7 months ago
I think it should run forever, not sure though.
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Eura
8 months ago
Looks like it will output 0 5.
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Lezlie
8 months ago
I’m a bit confused about the iterator logic. Does it really output the indices or the values? I hope it’s not a compilation error!
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Annamaria
8 months ago
This reminds me of a practice question where we had to use iterators with vectors. I feel like the output could be related to the positions of the found elements.
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Toi
8 months ago
I think the `compare` function is supposed to check for equality, so it might not find the elements correctly.
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Chauncey
8 months ago
I remember something about the `find_first_of` function, but I'm not sure how the comparison function affects the output.
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Kimberlie
8 months ago
Okay, let me think this through. Cataracts, psychosis, and acne are all well-known Prednisone side effects. Hypotension, on the other hand, is not typically associated with this medication.
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Erick
8 months ago
This question seems straightforward, but I want to make sure I understand the requirements correctly before answering.
upvoted 0 times
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Layla
8 months ago
Hmm, I'm not sure about this one. The question is asking about the process the client uses to discover the optimal bridging resource, so I'm not sure if B is the right answer. I might need to think this through a bit more.
upvoted 0 times
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