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

Actual exam question for C++ Institute's CPP exam
Question #: 98
Topic #: 6
[All CPP Questions]

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<

}

};

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:

Show Suggested Answer Hide Answer
Suggested Answer: D

by Sheron at Sep 18, 2024, 06:59 AM

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Junita
4 months ago
I'm pretty sure E is the right answer!
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Jacob
5 months ago
Wait, does it really partition correctly?
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Callie
5 months ago
Definitely not A, that's just sequential.
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Deja
5 months ago
I think it outputs the even numbers first!
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Keith
5 months ago
It generates numbers from 1 to 10.
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Odette
6 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.
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Reid
6 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.
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Miesha
6 months ago
I remember something about `partition` separating even and odd numbers, but I can't recall the exact output order.
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Ty
6 months 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.
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Tanja
6 months 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.
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Jeanice
6 months 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.
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Kent
6 months 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.
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Leana
6 months 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.
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Ora
6 months ago
This looks like a tricky one. I'll need to carefully step through the code to understand what's happening.
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Youlanda
6 months 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.
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Adria
12 months 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.
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Kenneth
11 months ago
E) compilation error
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Kenneth
11 months ago
B) 2 3 4 5 6 7 8 9 10 11
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Britt
1 year ago
I'm not sure, but I think the code will compile without errors.
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Dona
1 year ago
I believe the correct output is B) 2 3 4 5 6 7 8 9 10 11.
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Britt
1 year ago
I think the output will be A) 1 2 3 4 5 6 7 8 9 10.
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