Queens | Slides and programs for BitTiger lecture | GPU library

by MaigoAkisame Java Version: Current License: No License

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kandi X-RAY | Queens Summary

Queens is a Java library typically used in Hardware, GPU applications. Queens has no bugs, it has no vulnerabilities and it has low support. However Queens build file is not available. You can download it from GitHub.

This repository contains the slides and programs I used in the BitTiger lecture on 10/05/2016. In this lecture, I wrote 5 programs to solve the n-queens problem, each one faster than the previous. Bit operations played a key role in enabling the acceleration.

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Support

Queens has a low active ecosystem.

It has 40 star(s) with 20 fork(s). There are 3 watchers for this library.

It had no major release in the last 6 months.

Queens has no issues reported. There are no pull requests.

It has a neutral sentiment in the developer community.

The latest version of Queens is current.

Quality

Queens has 0 bugs and 0 code smells.

Security

Queens has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.

Queens code analysis shows 0 unresolved vulnerabilities.

There are 0 security hotspots that need review.

License

Queens does not have a standard license declared.

Check the repository for any license declaration and review the terms closely.

Without a license, all rights are reserved, and you cannot use the library in your applications.

Reuse

Queens releases are not available. You will need to build from source code and install.

Queens has no build file. You will be need to create the build yourself to build the component from source.

Queens saves you 112 person hours of effort in developing the same functionality from scratch.

It has 283 lines of code, 17 functions and 11 files.

It has medium code complexity. Code complexity directly impacts maintainability of the code.

Top functions reviewed by kandi - BETA

kandi has reviewed Queens and discovered the below as its top functions. This is intended to give you an instant insight into Queens implemented functionality, and help decide if they suit your requirements.

Test program
Depth - first search
Main entry point
Depth - first search
The main entry point
Performs a DFS operation
Simple utility method for testing purposes
Utility function for debugging

Get all kandi verified functions for this library.

Queens Key Features

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Queens Examples and Code Snippets

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Community Discussions

Trending Discussions on Queens

Multiple table joins in Oracle SQL with same column names

How to remove mutability from this function in scheme (N-queens)

Query to Find Adjacent Records in Access 2016

Axios.get returns status code 400 cant figure out whats wrong (SODAapi)

How to add field separator based on headers length?

Regex to include up to two words including the match

Queries with complex filtering LINQ to XML c#

Perform operation on floats in list value that contains both floats and strings

Solving N-Queens with Backtracking but in different way

Switch to new row based on string and extract info within parantheses in R

QUESTION

Multiple table joins in Oracle SQL with same column names

Asked 2021-Jun-15 at 22:43

Currently I have 3 tables like below

Master

ID_NUMBER ZIPCODE 1 12341 2 12342 3 12343 4 12344

Table1

ID_NUMBER CITYNAME COUNTYNAME 1 NEW YORK QUEENS 3 DETROIT SUFFOLK

Table2

ID_NUMBER CITYNAME COUNTYNAME 2 ATLANTA ROCKLAND 4 BOSTON WINCHESTER

My desired output is like below. I want to filter based on the zipcode from master table

ID_NUMBER ZIPCODE CITYNAME COUNTYNAME 2 12342 ATLANTA ROCKLAND

How would i go about writing a query for this? Below is what i have tried but it's giving me null values if the ID_NUMBER is not found on that particular table.

...

ANSWER

Answered 2021-Jun-15 at 22:37

Use COALESCE():

Source https://stackoverflow.com/questions/67994239

QUESTION

How to remove mutability from this function in scheme (N-queens)

Asked 2021-Jun-12 at 19:59

I'm arduously struggling my way through the N-queens problem in SICP (the book; I spent a few days on it -- last question here: Solving Eight-queens in scheme). Here is what I have for the helper functions:

...

ANSWER

Answered 2021-Jun-12 at 09:35

When you are doing the SICP problems, it would be most beneficial if you strive to adhere to the spirit of the question. You can determine the spirit from the context: the topics covered till the point you are in the book, any helper code given, the terminology used etc. Specifically, avoid using parts of the scheme language that have not yet been introduced; the focus is not on whether you can solve the problem, it is on how you solve it. If you have been provided helper code, try to use it to the extent you can.

SICP has a way of building complexity; it does not introduce a concept unless it has presented enough motivation and justification for it. The underlying theme of the book is simplification through abstraction, and in this particular section you are introduced to various higher order procedures -- abstractions like accumulate, map, filter, flatmap which operate on sequences/lists, to make your code more structured, compact and ultimately easier to reason about.

As illustrated in the opening of this section, you could very well avoid the use of such higher programming constructs and still have programs that run fine, but their (liberal) use results in more structured, readable, top-down style code. It draws parallels from the design of signal processing systems, and shows how we can take inspiration from it to add structure to our code: using procedures like map, filter etc. compartmentalize our code's logic, not only making it look more hygienic but also more comprehensible.

If you prematurely use techniques which don't come until later in the book, you will be missing out on many key learnings which the authors intend for you from the present section. You need to shed the urge to think in an imperative way. Using set! is not a good way to do things in scheme, until it is. SICP forces you down a 'difficult' path by making you think in a functional manner for a reason -- it is for making your thinking (and code) elegant and 'clean'.

Just imagine how much more difficult it would be to reason about code which generates a tree recursive process, wherein each (child) function call is mutating the parameters of the function. Also, as I mentioned in the comments, assignment places additional burden upon the programmers (and on those who read their code) by making the order of the expressions have a bearing on the results of the computation, so it is harder to verify that the code does what is intended.

Edit: I just wanted to add a couple of points which I feel would add a bit more insight:

Your code using set! is not wrong (or even very inelegant), it is just that in doing so, you are being very explicit in telling what you are doing. Iteration also reduces the elegance a bit in addition to being bottom up -- it is generally harder to think bottom up.
I feel that teaching to do things recursively where possible is one of the aims of the book. You will find that recursion is a crucial technique, the use of which is inevitable throughout the book. For instance, in chapter 4, you will be writing evaluators (interpreters) where the authors evaluate the expressions recursively. Even much earlier, in section 2.3, there is the symbolic differentiation problem which is also an exercise in recursive evaluation of expressions. So even though you solved the problem imperatively (using set!, begin) and bottom-up iteration the first time, it is not the right way, as far as the problem statement is concerned.

Having said all this, here is my code for this problem (for all the structure and readability imparted by FP, comments are still indispensable):

Source https://stackoverflow.com/questions/67912848

QUESTION

Query to Find Adjacent Records in Access 2016

Asked 2021-Jun-11 at 08:36

I have a table with a field called Result that contains values that can be anywhere between 1 and 100.

The table also contains a Date/Time field and is sorted from oldest to newest.

I want to be able to return adjacent records that have a Result of less than 3.

So, I need to first find a record with a Result that is less than 3 then check if the next records also have a Result of less than 3. If they do these records should be returned.

There may be no such adjacent records or there may be multiple records that meet this criteria.

Is this possible?

Edit to show raw data:

EVENT_ID MENU_HINT EVENT_NAME EVENT_DT SELECTION_ID SELECTION_NAME WIN_LOSE RESULT PPWAP MORNINGWAP PPMAX PPMIN IPMAX IPMIN MORNINGTRADEDVOL PPTRADEDVOL IPTRADEDVOL 177429103 GB / Warw 31st Dec 2m3f Nov Hcap Hrd 31/12/2020 12:16 24258495 Durouyn 0 3.35 3.788495864 5.38488519 8.2 3.35 1000 3 11733.86 122639.8 34646.44 177429358 GB / Ling 31st Dec 5f Hcap 31/12/2020 12:25 18749440 Recon Mission 1 2.690970585 2.971591572 3.333867707 3.7 2.62 2.62 1.01 10373.34 148069.5 80777.62 177429108 GB / Warw 31st Dec 2m5f Nov Hrd 31/12/2020 12:50 24173821 Hunny Moon 0 2.447464433 2.11324847 2.163378525 2.44 2.04 1000 1.19 11813.96 255912.18 125384.84 177429363 GB / Ling 31st Dec 1m4f Hcap 31/12/2020 13:00 15836857 Furzig 1 3.854984987 3.902990521 3.600931943 4.3 3.3 4.8 1.01 8973.44 143838.1 77024.42 177429113 GB / Warw 31st Dec 2m Hcap Chs 31/12/2020 13:20 21621736 Clondaw Storm 0 3.6 3.743201097 4.742622035 5.3 3.35 1000 3.5 2816.16 189308.52 24052.28 177429368 GB / Ling 31st Dec 1m Nursery 31/12/2020 13:30 16246360 Crane 1 4.57347948 5.497304184 8.064209052 13.5 4.3 9 1.01 2381.6 80916.5 56471.38 177429118 GB / Warw 31st Dec 3m Hcap Chs 31/12/2020 13:50 12139570 Western Climate 1 5.156135933 5.604728454 8.718328245 11 4.7 36 1.01 1533.68 66886.62 113571.44 177429373 GB / Ling 31st Dec 1m Hcap 31/12/2020 14:00 25106015 Fox Duty Free 1 1.822597055 1.653244765 1.834082867 1.86 1.53 2.18 1.01 9200.44 294331.6 133141.52 177455809 GB / Newc 31st Dec 1m2f Mdn Stks 31/12/2020 14:15 36868924 Sea La Rosa 0 1.53 1.543693353 1.514527435 1.71 1.44 1000 1.17 9156.44 414060.88 87693.56 177429123 GB / Warw 31st Dec 3m2f Hcap Hrd 31/12/2020 14:25 16570526 Mr Washington 1 2.887501832 3.033127147 3.416500781 3.7 2.8 12.5 1.01 3951.08 267753.32 222510.44 177429378 GB / Ling 31st Dec 7f Hcap 31/12/2020 14:35 26817851 Queens Course 0 3.2 3.090787978 2.725768785 3.35 2.56 1000 2.74 13746.16 191223.12 33258.54 177455814 GB / Newc 31st Dec 7f Nursery 31/12/2020 14:50 28583483 Patsy Fagan 0 3.6 3.871536732 5.026440395 5.5 3.5 1000 3.05 821.96 129773.56 12941.11 177429128 GB / Warw 31st Dec 2m4f Hcap Chs 31/12/2020 14:55 27358555 Larcadio 0 5.1 5.516270157 7.542009007 12.78 4.7 1000 5 2973.82 125064.34 14205.61 177429383 GB / Ling 31st Dec 7f Nov Stks 31/12/2020 15:05 35988539 Vunipola 0 4.163666731 4.865682954 6.290553968 6.63 4.09 1000 3.6 1566.86 90363.92 7276.22 177455819 GB / Newc 31st Dec 7f Hcap 31/12/2020 15:20 17896417 The Great Heir 0 4.633138814 4.98396497 5.033891895 6.4 4.4 1000 2.02 2751.64 89814.54 20710.14 177429133 GB / Warw 31st Dec 2m NHF 31/12/2020 15:25 36643074 Shearer 1 1.734505856 1.642204062 1.648608997 1.79 1.52 2.4 1.01 6611.44 389837.24 220416.46 177429388 GB / Ling 31st Dec 6f Hcap 31/12/2020 15:35 23983758 Come On Girl 1 4.036457882 4.226797676 5.141209402 5.3 3.95 6.2 1.01 2758.88 158780.52 68546.8 177455824 GB / Newc 31st Dec 5f Hcap 31/12/2020 15:50 28554376 The Mackem Torpedo 0 4.590142598 4.354303892 4.018987238 4.7 3.95 1000 4.5 1625.74 135903 6791.62 177455829 GB / Newc 31st Dec 1m Hcap 31/12/2020 16:20 12722816 Vive La Difference 0 4.662202966 4.069578956 3.447760364 4.6 3.4 1000 2.5 2542.4 142089.24 22386.43 177455834 GB / Newc 31st Dec 6f Hcap 31/12/2020 16:50 24560233 Tyche 0 4.468887453 4.409369153 3.73378774 4.9 3.6 1000 3.75 2678.94 199866.86 8157.5 177455839 GB / Newc 31st Dec 6f Hcap 31/12/2020 17:20 21809957 Firsteen 0 2.76 3.297405269 4.273854189 4.8 2.62 1000 1.98 1630.52 206865.74 19490.28 177455844 GB / Newc 31st Dec 5f Nursery 31/12/2020 17:50 10108658 It Just Takes Time 1 2.835988231 2.930861482 3.51783407 3.7 2.68 8 1.01 3203.46 303616.28 71088.54 177452819 GB / Sthl 1st Jan 1m Hcap 01/01/2021 12:05 24354064 Jump The Gun 0 1.943695456 2.106938051 2.212582243 2.75 1.93 1000 1.73 20918.4 247224.48 34151.63 177452824 GB / Sthl 1st Jan 1m Hcap 01/01/2021 12:40 17784369 Geography Teacher 0 3.386219187 4.094098153 4.019062448 4.9 2.96 1000 2.98 3835.16 135242.08 18892.67 177450972 GB / Muss 1st Jan 1m7f Juv Hrd 01/01/2021 12:45 26781759 Fiveandtwenty 1 1.303352215 1.319167666 1.345312394 1.46 1.28 1.29 1.01 32274.92 444260.44 153330.38 177452829 GB / Sthl 1st Jan 7f Hcap 01/01/2021 13:15 24434010 Stone Soldier 0 2.549774392 2.794154799 2.617939611 3.1 2.24 1000 2.6 5205 321055.3 26159.48 177450977 GB / Muss 1st Jan 2m4f Hcap Hrd 01/01/2021 13:20 17336818 Sebastopol 0 3.929666003 4.081355067 4.949413661 6.4 3.8 1000 2.54 21569.96 198160.34 52413.5 177452834 GB / Sthl 1st Jan 5f Hcap 01/01/2021 13:50 18267122 Thegreatestshowman 1 2.063934555 2.377164912 3.396825984 3.6 1.95 2.38 1.01 3969.34 354445.76 98256.96 177450982 GB / Muss 1st Jan 1m7f Hcap Hrd 01/01/2021 13:55 21566171 Rosie And Millie 0 3.724492471 4.147640855 4.350885597 6.17 3.7 1000 1.9 17416.7 177567.04 50688.77 177452839 GB / Sthl 1st Jan 5f Hcap 01/01/2021 14:25 11905513 Mulzim 0 2.970033644 2.81744235 3.279075198 3.69 2.66 1000 1.15 4101.28 286360.76 44772.63 177450987 GB / Muss 1st Jan 3m Hcap Chs 01/01/2021 14:30 11835257 Eagle Ridge 1 3.3 3.439516592 3.816612889 4.11 3.15 5.1 1.22 3783.72 155260.58 198310.06 177452844 GB / Sthl 1st Jan 5f Nov Stks 01/01/2021 15:00 6734265 Silent Queen 1 2.112527135 2.034570227 2.363084285 2.5 1.91 2.08 1.01 6776.64 557441.78 77038.62 177450992 GB / Muss 1st Jan 2m4f Hcap Chs 01/01/2021 15:05 18443373 Red Risk 0 6.4 7.754651066 8.574540985 10.5 6.2 1000 2.6 4665.12 91115.26 22514.2 177452849 GB / Sthl 1st Jan 1m3f Hcap 01/01/2021 15:30 13164979 Mr Carbonator 1 4.862029739 4.880893131 5.386305365 7.2 4.3 13 1.01 2191.3 118629.32 73162.24 177450997 GB / Muss 1st Jan 3m Hcap Hrd 01/01/2021 15:35 8427444 Arnica 0 4.949186067 4.859721673 6.046290481 8.15 4.4 1000 4.8 4594.06 82383.08 18082.52 177482329 GB / Ling 2nd Jan 1m2f Hcap 02/01/2021 11:30 16934 One To Go 0 4.647552172 4.247650843 3.744785965 5.4 2.3 1000 4.2 20388.5 93931.36 16765.68 177482337 GB / Ling 2nd Jan 1m2f Hcap 02/01/2021 12:00 35537114 Coupe De Champagne 1 2.759257517 2.691724907 2.688327131 3.1 2.66 4.8 1.01 5364.58 172705.28 87986.16 177482285 GB / Sand 2nd Jan 2m Juv Hrd 02/01/2021 12:05 28648727 Hudson De Grugy 1 1.652021681 1.580651241 1.610294187 1.7 1.47 5.1 1.01 38845.94 297948.06 198330.6 177482345 GB / Ling 2nd Jan 1m Mdn Stks 02/01/2021 12:35 37389223 Abrag 0 3.014364274 2.92708331 2.954901994 3.85 2.52 1000 2.66 10421.1 149521.56 16386.74 177482290 GB / Sand 2nd Jan 2m4f Listed Mares Hrd 02/01/2021 12:40 12765436 Stormy Ireland 0 2.450297083 2.21840097 2.105412255 2.4 1.99 1000 1.13 31835.58 237664.44 151548.74 177482367 GB / Ling 2nd Jan 1m Hcap 02/01/2021 13:10 22475046 Kodiac Harbour 0 4.161454727 4.104053582 4.010289186 4.5 3.8 1000 4.3 6452.88 124187.18 14029.48 177482295 GB / Sand 2nd Jan 2m4f Hcap Chs 02/01/2021 13:15 18416742 Destinee Royale 0 2.581778427 2.534929323 2.62282913 3.25 2.4 1000 1.61 14468.6 285577.14 71690.41 177482388 GB / Ling 2nd Jan 7f Hcap 02/01/2021 13:45 21039777 Merweb 0 4.214427037 3.716077346 4.157082886 4.4 3.7 900 3.5 2075.5 100099.42 23796.07 177482300 GB / Sand 2nd Jan 1m7f Hcap Chs 02/01/2021 13:50 12458428 Ibleo 1 2.771342189 2.865297244 3.093340465 3.5 2.72 12 1.01 57468.66 468915.94 184558.08 177482395 GB / Ling 2nd Jan 6f Hcap 02/01/2021 14:20 28659808 Rohaan 0 2.44 2.44365781 2.795702203 3 2.36 1000 2.48 6884.58 214335.08 45763.14 177482305 GB / Sand 2nd Jan 2m Grd1 Nov Hrd 02/01/2021 14:25 11144887 Metier 1 2.98 2.623330988 2.336856915 3.05 2.16 3.3 1.01 68284.7 569650.62 223772.66 177482403 GB / Ling 2nd Jan 6f Nov Stks 02/01/2021 14:55 35856072 Hidden Breeze 1 1.899786009 1.700147533 1.695047545 1.93 1.56 3.15 1.01 5141.26 397544.9 115253.84 177482310 GB / Sand 2nd Jan 3m Hcap Chs 02/01/2021 15:00 10464730 Potters Legend 0 8.945083598 7.487055028 8.587091835 11.38 6.4 1000 6 10048.92 148817.98 26323.38 177482420 GB / Ling 2nd Jan 5f Hcap 02/01/2021 15:30 11137751 Super Julius 0 2.98107922 3.109512581 3.884551246 6 2.96 1000 2.92 3995.54 196505.52 17391.92 177482315 GB / Sand 2nd Jan 2m Hcap Hrd 02/01/2021 15:35 17094738 Monsieur Lecoq 0 3.843156747 3.294978739 4.176691124 5.5 3.3 1000 3.7 17716.24 234519.22 47568.92

And expected result:

EVENT_ID MENU_HINT EVENT_NAME EVENT_DT SELECTION_ID SELECTION_NAME WIN_LOSE RESULT PPWAP MORNINGWAP PPMAX PPMIN IPMAX IPMIN MORNINGTRADEDVOL PPTRADEDVOL IPTRADEDVOL 177429358 GB / Ling 31st Dec 5f Hcap 44196.51736 18749440 Recon Mission 1 2.690970585 2.971591572 3.333867707 3.7 2.62 2.62 1.01 10373.34 148069.5 80777.62 177429108 GB / Warw 31st Dec 2m5f Nov Hrd 44196.53472 24173821 Hunny Moon 0 2.447464433 2.11324847 2.163378525 2.44 2.04 1000 1.19 11813.96 255912.18 125384.84 177429373 GB / Ling 31st Dec 1m Hcap 44196.58333 25106015 Fox Duty Free 1 1.822597055 1.653244765 1.834082867 1.86 1.53 2.18 1.01 9200.44 294331.6 133141.52 177455809 GB / Newc 31st Dec 1m2f Mdn Stks 44196.59375 36868924 Sea La Rosa 0 1.53 1.543693353 1.514527435 1.71 1.44 1000 1.17 9156.44 414060.88 87693.56 177429123 GB / Warw 31st Dec 3m2f Hcap Hrd 44196.60069 16570526 Mr Washington 1 2.887501832 3.033127147 3.416500781 3.7 2.8 12.5 1.01 3951.08 267753.32 222510.44 177455839 GB / Newc 31st Dec 6f Hcap 44196.72222 21809957 Firsteen 0 2.76 3.297405269 4.273854189 4.8 2.62 1000 1.98 1630.52 206865.74 19490.28 177455844 GB / Newc 31st Dec 5f Nursery 44196.74306 10108658 It Just Takes Time 1 2.835988231 2.930861482 3.51783407 3.7 2.68 8 1.01 3203.46 303616.28 71088.54 177452819 GB / Sthl 1st Jan 1m Hcap 44197.50347 24354064 Jump The Gun 0 1.943695456 2.106938051 2.212582243 2.75 1.93 1000 1.73 20918.4 247224.48 34151.63 177450972 GB / Muss 1st Jan 1m7f Juv Hrd 44197.53125 26781759 Fiveandtwenty 1 1.303352215 1.319167666 1.345312394 1.46 1.28 1.29 1.01 32274.92 444260.44 153330.38 177452829 GB / Sthl 1st Jan 7f Hcap 44197.55208 24434010 Stone Soldier 0 2.549774392 2.794154799 2.617939611 3.1 2.24 1000 2.6 5205 321055.3 26159.48 177482337 GB / Ling 2nd Jan 1m2f Hcap 44198.5 35537114 Coupe De Champagne 1 2.759257517 2.691724907 2.688327131 3.1 2.66 4.8 1.01 5364.58 172705.28 87986.16 177482285 GB / Sand 2nd Jan 2m Juv Hrd 44198.50347 28648727 Hudson De Grugy 1 1.652021681 1.580651241 1.610294187 1.7 1.47 5.1 1.01 38845.94 297948.06 198330.6 177482300 GB / Sand 2nd Jan 1m7f Hcap Chs 44198.57639 12458428 Ibleo 1 2.771342189 2.865297244 3.093340465 3.5 2.72 12 1.01 57468.66 468915.94 184558.08 177482395 GB / Ling 2nd Jan 6f Hcap 44198.59722 28659808 Rohaan 0 2.44 2.44365781 2.795702203 3 2.36 1000 2.48 6884.58 214335.08 45763.14 177482305 GB / Sand 2nd Jan 2m Grd1 Nov Hrd 44198.60069 11144887 Metier 1 2.98 2.623330988 2.336856915 3.05 2.16 3.3 1.01 68284.7 569650.62 223772.66 177482403 GB / Ling 2nd Jan 6f Nov Stks 44198.62153 35856072 Hidden Breeze 1 1.899786009 1.700147533 1.695047545 1.93 1.56 3.15 1.01 5141.26 397544.9 115253.84 ...

ANSWER

Answered 2021-Jun-11 at 08:35

I've put together a short piece of code that loops the original data, ordered by the date field, and if it finds a result of less than 3, checks the following results until one of them is 3 or more. It adds all of the ID fields to a string, which can then be used as the SQL for a query.

Source https://stackoverflow.com/questions/67931919

QUESTION

Axios.get returns status code 400 cant figure out whats wrong (SODAapi)

Asked 2021-Jun-11 at 03:18

Cant figure whats wrong with my axios call. Any help would be much appreciated.

So I have a search bar onClick that will send search terms to a function that compile the Api query string.

...

ANSWER

Answered 2021-Jun-11 at 03:18

The % characters in your query string aren't being encoded properly. They should be encoded as %25. See https://developers.google.com/maps/documentation/urls/url-encoding

The easiest way to ensure this with Axios is to use the params config. Any keys / values in there will be URL encoded.

Source https://stackoverflow.com/questions/67930233

QUESTION

How to add field separator based on headers length?

Asked 2021-Jun-08 at 07:19

I'm trying to add a delimiter to the following text format (actual file has many more fields).

What I see is the length of each field is given by the length of each underscores blocks ------------ that are below each header.

Input:

...

ANSWER

Answered 2021-Jun-08 at 07:19

You may use this awk that will with any version of awk:

Source https://stackoverflow.com/questions/67877995

QUESTION

Regex to include up to two words including the match

Asked 2021-Jun-07 at 19:23

I am trying to capture (using regex in python) up to two words preceding, but also including, my target word.

...

ANSWER

Answered 2021-Jun-07 at 19:23

Something like this would work:

Source https://stackoverflow.com/questions/67877533

QUESTION

Queries with complex filtering LINQ to XML c#

Asked 2021-Jun-03 at 13:44

I want to understand the complex filtering with LINQ XML. I have created a simple XML example (DataBaseCities.xml):

...

ANSWER

Answered 2021-Jun-03 at 13:44

First, see @zaggler comment. Deserialize and manipulate object will be more easily.

Second, if you want the cities where only english and spanish is spoken, see @AkshayGaonkar answer. If you want cities where english and spanish (and maybe other languages) is spoken, see my answer.

To write complex Linq query, I begin to write simulacrum SQL :

Source https://stackoverflow.com/questions/67821392

QUESTION

Perform operation on floats in list value that contains both floats and strings

Asked 2021-Jun-03 at 09:30

I have a dictionary in Python 3 in which all key-value pairs have the following structure:

...

ANSWER

Answered 2021-Jun-03 at 09:30

You need to pass an iterable to the sum() function, so make the values v[0] and v[1] to a list by adding a [ and ]

With minimal modification to your code

Source https://stackoverflow.com/questions/67818764

QUESTION

Solving N-Queens with Backtracking but in different way

Asked 2021-May-23 at 13:33

I am a 16 years old guy and recently I was solving n-queens problem but my code is giving different answers.Basically my code's intention is to put a queen on a specific row and then mark the left diagonals as well as right diagonals and columns marked as danger.And then placing other queens on the other positions where is no danger.Please explain briefly what is the problem in my code.

...

ANSWER

Answered 2021-May-23 at 13:33

Without digging into too deep you have a fundamental problem:

You mark all further fields reachable from current one with your current recursion depth and reset all of these unconditionally to -1. So you clear out the marks yet incomplete previous recursions, too.

Without digging too deep into the code I noticed that you do not mark the columns.

However, introducing that, you will risk illegally overwriting marks set in previous columns:

Source https://stackoverflow.com/questions/67656886

QUESTION

Switch to new row based on string and extract info within parantheses in R

Asked 2021-May-06 at 07:23

I have a character string that looks like this:

...

ANSWER

Answered 2021-May-04 at 13:56

Do it like this in tidyverse fashion

Source https://stackoverflow.com/questions/67385468

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Vulnerabilities

No vulnerabilities reported

Install Queens

You can download it from GitHub.
You can use Queens like any standard Java library. Please include the the jar files in your classpath. You can also use any IDE and you can run and debug the Queens component as you would do with any other Java program. Best practice is to use a build tool that supports dependency management such as Maven or Gradle. For Maven installation, please refer maven.apache.org. For Gradle installation, please refer gradle.org .

Support

For any new features, suggestions and bugs create an issue on GitHub. If you have any questions check and ask questions on community page Stack Overflow .

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