C++ Institute Exam CPP Topic 2 Question 99 Discussion

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

Question #: 99
Topic #: 2

[All CPP Questions]

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 Add {

int operator()(int & a, int & b) {

return a+b;

}

};

int main() {

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

vector v1(t, t+10);

vector v2(10);

transform(v1.begin(), v1.end(), v2.begin(), bind1st(1,Add()));

for_each(v2.rbegin(), v2.rend(), Out(cout));cout<

return 0;

}

Program outputs:

A1 2 3 4 5 6 7 8 9 10

B2 3 4 5 6 7 8 9 10 11

C10 9 8 7 6 5 4 3 2 1

D11 10 9 8 7 6 5 4 3 2

Ecompilation error

Show Suggested Answer

Suggested Answer: E

by Casie at Oct 21, 2024, 10:16 PM

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Jamal

16 days ago

Dude, what is this 'bind1st' nonsense? Is this some kind of advanced C++ voodoo magic or something?

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26 days ago

Haha, the correct answer is obviously C. Gotta love that reverse iteration, it's a classic.

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Adolph

7 days ago

Definitely, reverse iteration is always fun!

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2 months ago

Hmm, this seems like a tricky one. I'm gonna go with option B, that makes the most sense to me.

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Cecil

1 months ago

I think you're right, option B does seem like the most logical choice.

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Cecil

1 months ago

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

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Tina

2 months ago

I disagree, I believe the correct answer is E) compilation error.

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Catalina

2 months ago

I think the answer is B) 2 3 4 5 6 7 8 9 10 11.

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