C++ Institute CPP Exam - Topic 4 Question 37 Discussion

Actual exam question for C++ Institute's CPP exam

Question #: 37
Topic #: 4

[All CPP Questions]

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

#include

using namespace std;

class B { int val;

public:

B(int v=0):val(v){}

int getV() const {return val;}

operator int () const { return val;} };

ostream & operator <<(ostream & out, const B & v) { out<

templatestruct Out {

ostream & out;

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

void operator() (const T & val ) { out<

int main() {

B t[]={3,2,4,1,5,6,10,8,7,9};

vector v1(t, t+10);

transform(v1.begin(), v1.end(), v1.begin(), bind2nd(plus(), 1));

for_each(v1.rbegin(), v1.rend(), Out(cout));cout<

return 0;

}

Program outputs:

A3 2 4 1 5 6 10 8 7 9

B4 3 5 2 6 7 11 9 8 10

C9 7 8 10 6 5 1 4 2 3

D10 8 9 11 7 6 2 5 3 4

Ecompilation error

Show Suggested Answer Hide Answer

Suggested Answer: D

by Belen at May 05, 2022, 05:13 AM

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Eleonora
4 months ago

Are you sure it doesn't throw an error?

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Truman
4 months ago

Definitely not a compilation error!

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Carmelina
4 months ago

Wait, how does bind2nd work here?

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Dylan
4 months ago

I think it outputs option B.

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Douglass
5 months ago

The code compiles fine.

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Crista
5 months ago

I'm feeling pretty confident about this one. The requirements clearly favor a solution that minimizes network complexity, so I'm going to go with option A, an Azure Relay namespace. That seems like the most efficient and low-maintenance way to establish the WebSocket connection between the .NET app and the SQL Server instance.

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Arthur
5 months ago

I'm not sure about this one. The requirements mention sharing session state across all the web apps, but using a database like PostgreSQL doesn't seem like the best approach for that.

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Mary
5 months ago

I'm leaning towards the use of prophylactic antibiotics as the most relevant data point here. That could provide key insights into the surgeon's infection control practices.

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Buddy
5 months ago

Hmm, this one seems pretty straightforward. I'm pretty confident that charging a smartphone using a computer USB port is the riskiest option here.

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