What happens when you attempt to compile and run the following code?#include #include #include using namespace std;templatestruct Out {ostream & out;Out(ostream & o): out(o){}void operator()(const T & val ) {out

Discuss C++ Institute CPP Exam Topic 6 Question 98

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

#include

using namespace std;

templatestruct Out {

ostream & out;

Out(ostream & o): out(o){}

void operator()(const T & val ) {

out<

}

};

struct Sequence {

int start;

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

int operator()() { return start++; }

};

struct Odd { bool operator()(int v) { return v%2==0; }};

int main() {

vector v1(10);

generate(v1.begin(), v1.end(), Sequence(1));

partition(v1.begin(),v1.end(), Odd());

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

return 0;

}

Choose all possible outputs:

A1 2 3 4 5 6 7 8 9 10

B5 7 3 9 1 10 2 8 4 6

C10 2 8 4 6 5 7 3 9 1

D4 6 8 10 2 7 5 3 1 9

E2 4 6 8 10 1 3 5 7 9

Suggested Answer: D

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21 comments · newest first

Junita 11 months ago

I'm pretty sure E is the right answer!

Jacob 11 months ago

Wait, does it really partition correctly?

Callie 11 months ago

Definitely not A, that's just sequential.

Deja 11 months ago

I think it outputs the even numbers first!

Keith 11 months ago

It generates numbers from 1 to 10.

Odette 12 months ago

I feel like option E could be correct since it lists all evens first, but I’m not entirely confident about the odd numbers' placement.

Reid 12 months ago

I practiced a similar question, and I think the output should show even numbers first, but I’m confused about how they’ll be arranged.

Miesha 12 months ago

I remember something about `partition` separating even and odd numbers, but I can't recall the exact output order.

Ty 1 year ago

I think the `generate` function fills the vector with numbers from 1 to 10, but I'm not sure how `partition` affects the order.

Tanja 1 year ago

This is a tough one. There are a lot of moving parts in this code, and I'm not entirely sure how they all fit together. I'll have to really focus and work through it step-by-step.

Jeanice 1 year ago

I've got a good feeling about this one. The `partition` function should rearrange the elements so that the even numbers come before the odd numbers. I'll mark down option B as my answer.

Kent 1 year ago

Hmm, I'm not sure about this one. The `for_each` loop is printing out the elements, but the order seems a bit strange. I'll have to test this out to see what the actual output is.

Leana 1 year ago

Okay, let me think this through. The `generate` function is creating a sequence of integers starting from 1, and the `partition` function is separating the even and odd numbers. I think the output will be the even numbers first, then the odd numbers.

Ora 1 year ago

This looks like a tricky one. I'll need to carefully step through the code to understand what's happening.

Youlanda 1 year ago

This looks like a pretty straightforward Citrix design question. I think the key is to focus on the customer's objectives, especially the need to minimize authentication cycles for users.

Adria 2 years ago

The output should be B) 2 3 4 5 6 7 8 9 10 11. The code generates a sequence of integers starting from 1, then partitions the vector to move all even numbers to the end, and finally prints the resulting vector.

Kenneth 1 year ago

↳ replying to Adria

E) compilation error

Kenneth 1 year ago

↳ replying to Adria

B) 2 3 4 5 6 7 8 9 10 11

Britt 2 years ago

I'm not sure, but I think the code will compile without errors.

Dona 2 years ago

I believe the correct output is B) 2 3 4 5 6 7 8 9 10 11.

Britt 2 years ago

I think the output will be A) 1 2 3 4 5 6 7 8 9 10.

C++ Institute CPP Exam - Topic 6 Question 98 Discussion