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C++ Institute CPP Exam - Topic 8 Question 94 Discussion

Actual exam question for C++ Institute's CPP exam
Question #: 94
Topic #: 8
[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<

int main() {

int t1[]={3,2,4,1,5};

int t2[]={6,10,8,7,9};

vector v1(10);

sort(t1, t1+5);

sort(t2, t2+5);

merge(t1,t1+5,t2,t2+5,v1.begin());

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

return 0;

}

Program outputs:

Show Suggested Answer Hide Answer
Suggested Answer: D

by Lacey at Sep 18, 2024, 07:12 AM

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Carman
3 months ago
Nope, it's D for sure!
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Sharmaine
3 months ago
I think it should be E, there's a compilation error.
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Dominque
3 months ago
Wait, why does it say 10 before 8? That seems off.
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Elbert
4 months ago
Definitely outputs D, it's sorted!
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Carin
4 months ago
The code sorts and merges two arrays.
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Dell
4 months ago
I have a feeling there might be a compilation error because of the way the merge function is used.
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Jennifer
4 months ago
I practiced a similar question, and I believe the output should be sorted, so maybe option D is correct?
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Shawnda
4 months ago
I'm not entirely sure, but I remember something about the merge function needing the output vector to be large enough.
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Paulina
5 months ago
I think the code should compile fine since all the included libraries are correct.
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Dusti
5 months ago
Hmm, I'm not sure about this one. There are a lot of moving parts with the arrays, vector, and custom struct. I'll need to walk through it carefully step-by-step to make sure I understand what's happening.
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My
5 months ago
I'm feeling pretty confident about this one. The merge function should combine the two sorted arrays into the vector in the correct order. I'll double-check the syntax, but I think the answer is C.
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Hester
5 months ago
I'm a bit confused by the custom Out struct. Does that have something to do with the output? I'll need to research that a bit more.
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Winfred
5 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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Bambi
5 months ago
Okay, let's see... The code is sorting two arrays, then merging them into a vector. I think the key is understanding how the merge function works.
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Leonor
5 months ago
This question is similar to one we practiced, and I feel like the failover system mechanism was mentioned in that context.
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Albina
9 months ago
Wait, what? Reverse order? Did the code accidentally summon a black hole that's sucking in the numbers? C is my choice, but I might need to consult a physicist before submitting.
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Beth
9 months ago
Compile error? Really? This code looks pretty straightforward. Clearly, the compiler must be on vacation today. E is just a wild guess.
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Ocie
9 months ago
I'm not sure about this one. The merge seems right, but the output looks a bit off. Maybe I should double-check the algorithm. D seems plausible, but I'm not confident.
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Dylan
8 months ago
User2: Maybe we should run the code to see the actual output
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Nickolas
8 months ago
User3: I agree with User1, A) seems more likely based on the code
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Micaela
9 months ago
User2: I'm not so sure, I feel like it might be B) 2 3 4 5 6 7 8 9 10 11
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Lashanda
9 months ago
User1: I think the output will be A) 1 2 3 4 5 6 7 8 9 10
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Andra
9 months ago
Ha! Looks like someone's trying to trick us. The merge is done correctly, but the output is in reverse order. C is the way to go.
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India
8 months ago
Definitely C, the output is 10 9 8 7 6 5 4 3 2 1.
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India
8 months ago
Yeah, the merge is done correctly but the output is reversed.
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India
8 months ago
I think C is the correct answer.
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Gabriele
10 months ago
Hmm, I think the merge function is working correctly, but the array indices might be off. Let me double-check the logic. Maybe B is the right answer?
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Rodrigo
9 months ago
User 3
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Alva
9 months ago
User 2
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Candra
9 months ago
User 1
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Tanja
10 months ago
The code seems to be merging two sorted arrays into a vector. The output should be the merged and sorted elements, so I'll go with A.
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Dottie
9 months ago
Looks like the code is merging and sorting the arrays correctly.
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Dottie
9 months ago
A) 1 2 3 4 5 6 7 8 9 10
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Galen
11 months ago
I'm not sure, but I think the answer might be E) compilation error because the code is missing the include for the merge function. Without it, the code won't compile.
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Quentin
11 months ago
I agree with Valene. The code uses the sort function to sort the arrays and then merges them using the merge function. The output should be in ascending order.
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Valene
11 months ago
I think the answer is A) 1 2 3 4 5 6 7 8 9 10 because the code sorts the arrays t1 and t2 and then merges them into vector v1 in ascending order.
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