Discuss C++ Institute CPP Exam Topic 8 Question 55

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

#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;

}

Aprogram outputs: 0 1 2 5 6 7

Bprogram outputs: 0 5

Cprogram outputs: 0 0

Dcompilation error

Eprogram will run forever

Suggested Answer: E

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12 comments · newest first

Linwood 11 months ago

Wait, does it really use `==` in the compare function? That's odd.

Stevie 11 months ago

Nah, it outputs 0 1 2 5 6 7 for sure!

Earlean 12 months ago

Definitely a compilation error, right?

Candida 12 months ago

I think it should run forever, not sure though.

Eura 12 months ago

Looks like it will output 0 5.

Lezlie 1 year 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!

Annamaria 1 year 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.

Toi 1 year ago

I think the `compare` function is supposed to check for equality, so it might not find the elements correctly.

Chauncey 1 year ago

I remember something about the `find_first_of` function, but I'm not sure how the comparison function affects the output.

Kimberlie 1 year 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.

Erick 1 year ago

This question seems straightforward, but I want to make sure I understand the requirements correctly before answering.

Layla 1 year 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.

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