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QUESTION
I am using Bison/Flex to create a compiler for a C-like (simplified version of C) language. I am trying to implement arrays and I am running into an issue and I can not find the source of the error. I have been stuck on this for a couple days so any help would be greatly appreciated!
Current output:
...ANSWER
Answered 2021-May-05 at 22:45Nothing in that grammar allows a statement to start with a subscripted array, since you don't allow statements to be expressions, and the production which would have allowed array assignment has been commented out.
QUESTION
I am trying to convert all SQB files into BAK files format in the same folder (called "Today").
I was able to come up with Python script to move necessary (same day's) SQB files from ("Test1" folder) into a separate folder ("Today" folder).
Now, I need to run a command line to go thru each SQB files and convert all to BAK file format.
There is a EXE file called "SQBConverter" that will be used, and the command line goes like this (for example, for an individual file):
...ANSWER
Answered 2021-Apr-27 at 17:33The easy way is:
QUESTION
I've been given a simple pseudocode and told to determine the big O running time of the function myMethod() by counting the approximate number of operations it performs. The thing I am unsure about is that within the while loop of the function myMethod() there is a function call to doIt(), in which there is another while loop. I know that I need to include the operations within doIt(), however I am unsure if it should count as n or n^2 since it is a separate function, despite it being a while loop within a while loop.
I've written what I think the number of basic operations is for each line beside their respective lines, I would appreciate some guidance on this problem as I've looked around on the internet but not much luck regarding this specific issue.
...ANSWER
Answered 2019-Jul-08 at 14:11First, your doIt
function is a basic while loop. I don't know what n*n
is supposed to mean, but that loop is not O(n^2)
, its O(N)
because it executes n/2
times- which we can write as 1/2 * n
, and since we don't care about constants in terms of writing Big-O notation, we can say doIt
has a Big-O complexity of O(N)
You correctly identified myMethod
's loop to be log(N)
time. Since the doIt
function runs in O(N)
time- the overall complexity of myMethod
is log(N)
for the complexity of the outer loop multiplied by the complexity of doIt
- so log(N) * N
which equals O(nlog(n))
QUESTION
I've been given a simple pseudocode and told to determine the big O running time of the method myMethod() by counting the approximate number of operations it performs. However if within the function another function is called, do I include the operations from there as part of the running time of myMethod()?
I've been looking around the internet for answers but no luck so far, so I hope someone will be able to help me out here. Thank you
...ANSWER
Answered 2019-Jul-06 at 02:10Yes, your runtime depends on everything that is called with it, unless the instructions say otherwise. The cost that you have from those functions is also scaled by the cost of evaluating the function as many times as it does.
For example, your bottom function has a while loop that runs around lg n
times. You then also have to evaluate how the runtime is going to change based on the inputs, because the function calls you make also will vary due to your input. Since it's big-oh, you could set an upper bound and assume it for all invocations, however your bound may not be tight. Though from a theoretical point of view this is okay because big-oh is an upper bound.
If this is for say some school assignment, you will probably not get marks if your bounds aren't tight.
QUESTION
So i'm just trying make an app, push a button and turn off a light. Simple, right? But i'm a dolt.
So i've never played with Web APIs before (or any api, really). I'm following This MS Doc to get a grip on it. Modifying it to make it work but it doesn't (obviously).
In Button_Click the RunUpdate errors 'MainPage.Runupdate()' is a method, which is not valiud in the given context'
This is probably an easy fix but i'm sure to run into more. Anyone up to help me out? Thanks!
Here's the code:
...ANSWER
Answered 2018-Sep-18 at 03:33Well, RunUpdate() is a method - you forgot parentheses in your RunUpdate call from the Button_Click :)
QUESTION
I'd like to be able to access the object passed to a form tag in DotLiquid within child tags. Something like this:
...ANSWER
Answered 2017-Dec-27 at 17:55This is easily done in the tag renderer with Context
's Stack
:
QUESTION
I have a value in cell A1 that reflects a job number. The file I want to open is in: G:\fixtures\ (cell a1 value)\purchase list\ (targetfile.xls).
Once this file is open, I want to copy cells the cells in columns A-to-G.
I then want to paste this copied data into cell A5 in my Activesheet in the workbook: LATHE_PROJECT_5_15_2017.xlsm . This active sheet's name in this workbook will always change as these sheets are created when a job number entered on a previous page. So I'm a bit confused as to the WBKDEST. line
I'm very new to the world of excel VBA. Any guidance as to why what I'm trying to accomplish isn't working would be GREATLY appreciated.
Also: I've learned so much from this community just reading old posts. Thanks for helping dolts like me!
...ANSWER
Answered 2017-May-26 at 11:43change "wbkDest.Worksheets.ActiveSheet.Cells(a5).PasteSpecial Paste:=xlPasteValues" to "wbkDest.ActiveSheet.Cells(a5).PasteSpecial Paste:=xlPasteValues"
or
"wbkDest.Worksheets(ParticularWorksheetName).Cells(a5).PasteSpecial Paste:=xlPasteValues"
QUESTION
Been beating my head against this problem for a bit... It is probably either really easy to do and I am a dolt, or really hard to do and not worth it. Basicly I have a wordpress theme that has a nice Event widget included. It works great but it puts a lame "Free Entry" button on every event. All of our events are free so it's just kind of an eyesoar. I have been trying to edit the stylesheet to remove it but I can't figure it out. Here is the site I am working on: http://comerestministries.com/wordpress/homepage3/
The code I am looking at I think is this:
...ANSWER
Answered 2017-Apr-27 at 15:58looking at your wp theme, you can like this:
QUESTION
I'm trying to create a webpage where the words you hover over disappear and never appear again after you leave them, with the exception of a few words. I got most of this code from another StackOverflow person, but I'm having trouble getting the Javascript to actually function work with the HTML.
The alert in the JS is just there to check if the javascript is working properly. Maybe I wrapped it in the document.ready
incorrectly?
I'm sorry if I'm being an absolute dolt. I'm not a coder, I'm just trying to do an "electronic text" project for an english class. Any help would be appreciated. Thank you. Here's my code:
HTML:
...ANSWER
Answered 2017-Apr-19 at 22:33You are missing some parentheses. Change your first line to be:
QUESTION
I'm trying to build a collection of Doubles that has a range and a step. When I use the Array.iterate
method I get strange floating point errors like such:
ANSWER
Answered 2017-Jan-26 at 23:19This is a symptom of a fundamental limitation of floating point arithmetic and has nothing to do with collections:
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