Why would anyone downvote this quiz? (declined due to community downvotes)

Question

What is the output of this code?

stack<int> s;
int a=2;
int *p=&a;

for(int i=0;i<4;i++)
s.push(*p+i);

cout << s.top();

Is it because it's too easy or what? SL should add a comment area where the quizzes are commented on so we know what is going on.

Answer 1

to tell you a secret - there seems to be no real way to say if a quiz is going to pass. Some time ago I had some quizzes declined due to different reasons, I got a bit angry and immediately resubmitted most of them expecting that they will get rejected again. Guess what - the next DAY few of them got accepted, so it seems it mostly depends on the guy who is approving's mood or something.
At that point I felt disappointed and I've stopped submitting...☹

Answer 2

Quiz Factory is messed up. It declined my core programming concepts related quizzes as the norm is to accept math quizzes. Jeez 😒

Answer 3

@Nikolay me too....I hate to suggest a quiz...!!😝😝😝 because all of my quizzes declined DUE TO DOWNVOTES ONLY....!!!

Answer 4

@Nikolay, funny because that was exactly what I wanted to do....I'm gonna resubmit them. :D

Answer 5

@Maryam, check out Manual's link. stack<int> is a stack (a Last In First Out data structure) of ints. Push() simply stacks 4 values in the loop, the last one being 2+3 = 5, and top() simply returns the value on top of the stack, which is the last one.

Answer 6

Here's a great resource I just discovered on the STL.

http://www.fluentcpp.com/stl/

Answer 7

@Restoring faith, it is not different from the other courses, a lot of the quizzes in the other languages are not taught in the courses.

Answer 8

They don't even seem to accept math quizzes either. I have tried and always got "too many similar questions exist". I even made simple matrix codes, where some involved summing/multiplying the elements of a diagonal or secondary diagonal and they got declined due to downvotes.

Guess I can forget the 2k xp for Creator badge. SL has proven that they won't accept new material and defeat the purpose of learning new things.

Answer 9

I assume people down-vote because it wasn't taught in the course¿

Answer 10

The whole STL should be known, it is very useful. I don't understand why Java can have quizzes with Generics in them, and C++ should not have STL containers quizzes.

Answer 11

Yes it is 5. If people don't know what a stack data structure is, they are missing out on a lot of things.

Answer 12

Its either the compiler or its my poor coding skills.

-It would be nice to have more than one chance to input data on SL like javascript, with C++.

Answer 13

I believe it is 5

@Helioform

People probably did not get it,

like @Ace's question a few weeks ago.

I need to use .push and .top in a code.

Answer 14

@Helioform I learned it from a youtube video a few days ago.

I will link the video and a tutorial, for whoever wants to use the stack data structure.

Stack data structure tutorial

http://www.cplusplus.com/reference/stack/stack/

C++ vid

https://youtu.be/Rub-JsjMhWY

Answer 15

I have only 2 accepted quizzes while others have a hundred! 😱

Answer 16

I think there is a bitof buyestness nowadays. If a question is too hardthey know they'll screw up in it ao they don't want it. If it's easy, it will be good for challenges
I used ti have that mentality, but now no more.

Answer 17

I need to compile it in visual studio.

The C++ compiler here is different from normal ones.

[edited]

I think the javascript interpreter is the best one SL has.