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bigpotato

Sat Mar 01, 2014 8:10 pm


need help with array program

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What is it you are trying to achieve?
write a program that asks the user for the numbers of values they want(between 5-20), and then print the values out, including the average of the values and the largest and smallest values. the result would look like this

how many numbers would you like
5
Enter value #1 of 5
10
Enter value #2 of 5
20
Enter value #3 of 5
30
Enter value #4 of 5
40
Enter value #5 of 5
50

the mean is 30

the smallest value is 10 and the largest value is 50


What is the problem you are having?
I dont know how to declare a array that can change depends on the user and i dont know how to print them out.


Describe what you have tried to solve this problem
I made a variable called ValueNo and did array 1 .. ValueNo of int and that doesnt seem to work and now im stuck


Please specify what version of Turing you are using
4.05


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Insectoid

Sat Mar 01, 2014 8:14 pm


RE:need help with array program

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Does the size of the array have to change?


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bigpotato

Sat Mar 01, 2014 8:17 pm


Re: need help with array program

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it depends on the user but it doesnt change after the user has selected the size


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Raknarg

Sat Mar 01, 2014 8:42 pm


RE:need help with array program

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Not a very nice way to do it, but you could do this:


var numElements : int

put "How many elements would you like?"
get numElements

var arr : array 1 .. numElements of int

put "Your array has ", upper(arr), " elements."


numElements is just a number. This is totally valid.


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Insectoid

Sat Mar 01, 2014 9:08 pm


RE:need help with array program

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You know there's never more than 20 elements, so you can just use an array of size 20 every time. You don't have to use every index. If there's only 5 elements, then you only use the first 5 indices of the array.


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bigpotato

Sat Mar 01, 2014 9:25 pm


Re: need help with array program

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thank you, one more question, how can i make the program say "invalid input" if the number they enter is less than 5 and greater than 20, and make it keep saying it until they enter a valid input


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Insectoid

Sat Mar 01, 2014 9:33 pm


RE:need help with array program

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if the number they enter is less than 5 and greater than 20

Convert that sentence directly to code

keep saying it until they enter a valid input

Do something multiple times. You'll want a loop for that.