C++ Institute Exam CPP Topic 7 Question 86 Discussion

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

Question #: 86
Topic #: 7

[All CPP Questions]

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

#include

using namespace std;

int main () {

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

vector v (t,t+10);

vector::iterator it = v.begin();

while ( (it = adjacent_find (it, v.end())) != v.end()) {

cout<

}

cout<< endl;

return 0;

}

Aprogram outputs: 2 3

Bprogram outputs: 2 7

Cprogram outputs: 3 8

Dcompilation error

Eprogram will run forever

Show Suggested Answer

Suggested Answer: E

by Stefan at Jun 02, 2024, 08:45 AM

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Dalene

13 days ago

I bet the correct answer is a compilation error. I mean, come on, who writes code like this? It's like a riddle wrapped in a mystery inside an enigma.

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Gabriele

15 days ago

Hold on, is this the real life? Or is this just fantasy? I'm so confused, I think I need to go take a nap and come back to this question later.

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Lea

25 days ago

Wait, is this a trick question? I'm pretty sure the program will run forever because the while loop never terminates. It's like an infinite loop of finding adjacent duplicates!

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Kris

13 days ago

B) program outputs: 2 7

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Lorean

18 days ago

A) program outputs: 2 3

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2 months ago

The output will be 2 7, since the adjacent_find function will return the first iterator pointing to the first duplicate element, which is the second 3 in the vector.

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