C++ Institute CPP Exam - 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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Leonie

10 months ago

Definitely not running forever, that's not how it works.

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Franklyn

10 months ago

Surprised it doesn't throw a compilation error!

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Nilsa

11 months ago

Wait, isn't there a mistake in the cout statement?

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Alise

11 months ago

I think it should output 2 3.

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Francoise

11 months ago

The code uses adjacent_find to find duplicates.

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Lovetta

11 months ago

I feel like this code might run into an infinite loop because of how the iterator is being incremented.

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Ashlee

12 months ago

I'm a bit confused about the `cout<

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Adela

12 months ago

I remember practicing a similar question, and I think the output should be the indices of the first duplicates found in the vector.

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Launa

12 months ago

I think the `adjacent_find` function will find the first pair of adjacent equal elements, but I'm not sure what the output will be.

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Tasia

12 months ago

Alright, time to put my problem-solving skills to the test. I'll start by identifying the key components of the code and how they interact.

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Kenneth

12 months ago

I've seen this type of problem before, so I think I know what the output will be. Let me double-check my understanding quickly.

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Jules

12 months ago

Whoa, this is a lot of code to digest in an exam setting. I better take it slow and make sure I don't miss any important details.

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Aretha

12 months ago

Okay, I think I understand what's happening here. Let me walk through it in my head before I write anything down.

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Margret

1 year ago

Hmm, this looks like a tricky one. I'll need to carefully read through the code and think through the logic step-by-step.

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Scot

1 year ago

I think the Urgency of an Incident refers to how quickly it needs to be resolved, based on the impact it has on normal operations. Option A seems to capture that idea best.

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Tenesha

1 year ago

I'm not entirely sure, but I remember something about IM being less formal than email. Does that mean conversations aren't considered records?

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Beata

1 year ago

I think appropriate utilization might be less of a reason for carve-outs. It seems like they focus more on cost and patient definitions instead.

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Dalene

1 year 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

1 year 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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Bethanie

1 year ago

User1: Thanks for the info, I'll check it out later.

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Georgene

1 year ago

User3: The answer is B) program outputs: 2 7

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Alishia

1 year ago

User2: Yeah, sometimes a nap can help clear your mind.

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Huey

1 year ago

User1: Don't worry, just take a break and come back later.

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Lea

1 year 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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Mignon

1 year ago

E) program will run forever

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Cassie

1 year ago

C) program outputs: 3 8

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Kris

1 year ago

B) program outputs: 2 7

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Lorean

1 year ago

A) program outputs: 2 3

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Tawanna

1 year ago

I think the output will be 3 8, because the adjacent_find function will return the iterator pointing to the second pair of duplicates, which is the second 4 in the vector.

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Matthew

1 year ago

D) compilation error

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Cassi

1 year ago

C) program outputs: 3 8

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Irma

1 year ago

B) program outputs: 2 7

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Rosita

1 year ago

A) program outputs: 2 3

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Julieta

1 year ago

I'm not sure, but I think the answer might be B) program outputs: 2 7 because the iterator is incremented by 1 each time.

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Lashonda

1 year ago

I agree with Tiffiny, because the code uses adjacent_find to find the first occurrence of two adjacent elements that are equal.

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Malcolm

1 year 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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