Please help me understand this question on c++

This is a discussion on Please help me understand this question on c++ within the C++ Programming forums, part of the General Programming Boards category; hi everyone. i got class test today and i think this question is pretty messed up or am stupid and ...

  1. #1
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    Please help me understand this question on c++

    hi everyone. i got class test today and i think this question is pretty messed up or am stupid and ignorant. i can write the program in my way but this question i cant understand. i dont need the coding, i just need some explanation. it goes like this

    (i) Write a piece of code to declare a function which will do the following:
    (a) return void
    (b) take as input parameters two arrays of integer values
    (c) take as output parameters the sum of these two arrays into a third array to calculate the average temperatures over the last 10 days.


    (ii) Write a piece of code to define an appropriate function for the above to do a sum of the corresponding values in the two input arrays.

    (iii) Write a piece of code to call the above function from the main function.

    I have written the question exactly how it was written in the question paper. Please explain this to me. thank you
    Last edited by darksifer; 04-14-2011 at 03:12 AM.

  2. #2
    and the hat of wrongness Salem's Avatar
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    I'm not sure what you want.

    You say you don't "need code", yet every statement begins "Write a piece of code"

    > (a) return void
    > (b) take as input parameters two arrays of integer values
    > (c) take as output parameters the sum of these two arrays into a third array to calculate the average temperatures over the last 10 days.
    Is
    void foo ( int array1[], int array2[]

    Can you finish this declaration?
    If you dance barefoot on the broken glass of undefined behaviour, you've got to expect the occasional cut.
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    Well .... you are ignorant (lacking knowledge). I don't equate stupidity with ignorance though - an intelligent person can correct ignorance through effort to learn.

    I agree with you that the questions are very poorly worded too.

    The first question is asking you to declare a function (i.e. provide a prototype). The second is asking you to define (i.e. implement) that function. The third question is asking you to write a main() function that calls the function (eg for test purposes).

    As to what the function is supposed to do: it receives three arguments. Two of those arguments are arrays of integer that supply input data. The other argument is an array of integers that receives output data. The function will write values, based on the two input arrays to the output array. The function returns void.

    The calculations to get from the input arrays to the output array is where the questions are very poorly worded. The teacher has done a poor job writing these questions, although it may not be a good idea to tell him or her that. Let tact win the day.

    I assume each element of the output array is either the sum or the average of corresponding elements (I'm not sure which either - best to ask your teacher). Each of the arrays presumably has ten elements, that are (at a guess) temperature values of some form.
    Last edited by grumpy; 04-14-2011 at 04:27 AM.
    Right 98% of the time, and don't care about the other 3%.

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    @ grumpy & @ salem Thank you both. I answered the question as i understand it. but was not sure. As you said the question is poorly worded and that made me wonder. i just needed someone to tell me that the question is poorly worded. that all. i did my best.
    Last edited by darksifer; 04-14-2011 at 04:55 AM.

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    show us your answers and we'll help you find any problems that may exist

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