I have been at this problem for 2 days and have been looking for a correct implementation and explanation. Finally found both in this video!! The only one on yt i think for tic tac toe. Thank you for realising that people start from basic problems❤
I have one suggestion to use Factory and Null design pattern for the Piece interface. So there will be a factory responsible for returning a piece based on the type that we pass and if we have no such type then we will return a default object. This will help our printBoard function to not use if else instead directly print the object.
can you provide code for the same. It will be nice if you can make video explaining the code and approach. It's high time to start a you tube channel bro
Amazing video. One improvement I would suggest is the use of proper access modifiers for methods and variables. Making everything public might be acceptable if someone is interviewing for an SDE-1 position, but for anything above that, it’s important to ensure that proper scopes and access modifiers are applied to each variable and method.
@Concept && Coding , this is the optimization we can do: Instead of having while loop and then checking getFreeCells() again and again, we know that in 3*3 tic tac toe, player1 and player2 can play maximum 9 times. Thus, we can use simple for loop from 0 < i < board.size*board size. If any player wins in between, we mark winner flag to true and break, else if for loop is exhausted we know it is Tie, thus redundant getFreeCall() loop is avoided.
We can also take a variable of boadSize * boardSize and at every turn decrease it 1. check this condition at first place before taking row, column input.if the variable value 0. It means all cells are filled means it's a Tie;
Firstly, thanks for the video Shreyansh. I have 2 queries regarding the arrows that you used for class diagram: 1.) The relation between (Board and Pieces) and (Players and Pieces) seems to be of aggregation, but that arrow is not the sign of aggregation. 2.) What exactly that arrow represent as I have not seen that arrow anywhere in class diagrams?
why do we need PieceX and PieceO classes. I mean couldn't we simply pass PieceType.X in constructor of playingPiece for a user.. How does this decision make it a better design?
Hi, it's great. Just one suggestion that, we should have strategy patterns for deciding the winner of the game. It can help the devs have more fun game modes
O(1) soln: Only check row, col and diagonal containing the last cell/last move. keep a counter for each row, col and diagonal, and just check if row[r]==sz or col[c]==sz || (r==c && diag[r]==sz) return true.
Correct me If I am wrong. Enumerations will violate the Open Close principle in SOLID principles. Hence I think the design should be improved to follow all the SOLID principles.
Hi Aniket, to me Piece is an Object which can have both the things "Properties" and "Function". That's why i define it as an object. Rather than enum. But definitely you can also implement the same using enum
I think we can make the board as abstract class and extend it as per different game boards like tictactoeboard, chessboard etc... and we can separate out the logic of checking the winner to the board class. This will help achieve single responsibility principle and also make game class reusable.
Can you please also explain the intuition behind choosing the design ? how do you decide when to which design pattern ? Also, when to have "is-a" or "has-a" relationship?
Got it, one more doubt, why are we not making variables private and using getters/setters Is that not required for games or did I miss something? Thanks.
Why would you create separate implementation for each peiceType. Cant we just create different instances of the PlayingPiece and assign the pieceType on runtime.
Just a suggestion , i think the GetFreeCells function is only acting as counter we can replace it with that and while checking IsWinner we can exit when we have first match rather than checking for all cases(except n queen).
Sir, in this problem, in most interviews, the expectation would be the design + implementation of isThereWinner() method ? Keeping the core design same, I am writing a more generalized and optimised version, thank you sir
what is the reason for having the *Piece* as an enum and *PieceType* as class wrapping the enum?? instead we can directly use the enum right?? without *PieceType* class
@Shreyansh can you pls clarify my doubt that why playing piece class and it's child class is created, we can simply use the PieceTypeEnum only, this will not violate solid principles
yes, we can, i just thought in future, if any more playing piece need to be introduced with some specific logic, we can add that here. but for this specific X and O you can you Enum too.
HI @Concept && Coding, why are we using inheritance to create PieceTypeX and PieceTypeO, can't we directly use the enumeration? I am not able to understand. public class PlayingSymbolX extends PlayingSymbol{ PlayingSymbolX() { super(Symbol.X); } } here we are just having any constructor. Any specific reason to use this way?
It would be helpful if you mention whether it's hindi audio or English audio in title. Getting frustrated everytime when I open the design which is hindi.
Thank you for this LLD series. I always get confused between the is-a , has-a , etc. relationships. Could you provide me any book or resources in which I could improve this ?
Hi Shraytansh, I have a doubt. addPiece() should be in Board Class or Player Class? I think Player Can add the Piece, so adding piece is player Behaviour . On the other side, we can say Board Object can be modified by adding Piece. By this, we can say addPiece() should in Board class. Which is correct and why?
Hi , i have one doubt why do we require PieceX and PieceO separate classes , since we will never have any different implementation for class members . it can just be a data member what char does it represent . like public class Piece { private char sign; Piece(char sign){ this.sign = sign; } public char getSign() { return sign; } }
Hey Shreyansh I have one doubt that as you Game class is doing multiple things so in future if I need to change(or modify) winning logic, so is it following Single Responsibility Principle?
Depends, how you are grouping your classes. For example: for each method performing some task, we can not put into different class else we will face class explosion issue. So sometimes we have to group some logical related functionality into 1 class. That's why I said in LLD there is no 1 solution. If you think winning logic does not belong to this class and should be other, go ahead but question is will you create separate class for each method?
@@ConceptandCoding "So sometimes we have to group some logical related functionality into 1 class." this clears as I will not create separate class for each method.
Hey shreyansh, why we need to make a separate child class for each type of enum?? Doesn't it violate liskov substituion principle, where child class is narrowing down the abilities of parent class?
Hi Shreyansh, I have one query 1. In the video you have 'player' contains 'playingPiece' which in turn contains 'pieceType'(pieceType is enum). What if we don't use 'playingPiece', instead we make 'player' contains 'pieceType'. So we make one less class than earlier. will the second design be better/worse than the first design? And how so? Thanks, great content btw. really appreciate your work.
There is no one solution in LLD, but just think from future perceptive that can more fields will be added in playing piece in future (today it has only piece type), then you have to add them in player class.
Can anyone please tell Which lld pattern tells us that we should create PieceX and PieceO classes instead of passing piece type directly while creating player object
@@ConceptandCoding So shreyansh, if we pass pieceType directly to the player, how it will violate open closed principle?? Whenever we need a new pieceType, we have to add this in our enum either way and we can assign it to any new player?
Hello sir, Iam planning to buy ur RUclips membership, can you please cover the topics again in English only for the videos in which you have thought in hindi.
Hey shreyansh, I was not able to access parking lot video, it says member access is needed, I don’t find member access join button anywhere. Also, I thought you’re doing it for free. Can you pls help me here with link for member access?
It seems code will not work correct for the tie case. All players will get removed from the deque since you are using continue for the case when there is no free cells. It will give null pointer exception. Instead of continue, break should be used.
Definitely there can be other ways to implement loggers. I used Chain of responsibility to implement it. Could you try to do it some other way, then we can discuss more.
hi, here can you please explain what is the need of making separate classes for each playingpeice like can't we make a common class here, like enum pieceType then just make two objects of it with X and O type
Hey dhruv, can you please explain why we need a class for a pieceType in the first place?? We can just assign pieceType to each player through constructor only na??
@@ConceptandCoding I have last round of interview at amazon most probably bar raiser round, my first two rounds were purely technical rounds which I have cleared so will they ask me to code in bar raiser or ask leadership principles related stuff.. I am so much confused right now..pls help
Hi Vishal, i think Bar Raiser round is also rown as Loop round, pls correct me, if this is the case yes in Loop rounds, there will be coding questions+ Leadership principles questions too. Generally Amazon has 5 rounds, of 2 you have cleared then i am thinking its loop round only where rest 3 round will happen including managerial round.
@@ConceptandCoding My second thought was not to keep the playing pieces inside the player and to randomly assign playing pieces to players during the game, eliminating the need for players to change their playing pieces during the game. Would this be a beneficial enhancement, or might it potentially conflict with certain design principles?
Do we actually need to check free space every time? Cant we just check the number of free cells by keeping the count? For example in a 3x3 board initially 9 free cells will be there, we can decrease the count each time user makes a move.
Yes we can do. Implementation we can do with many ways, but overall design is imp for this video. But yes there might be efficient way to implement the logic
Hi, I have not given any system design interviews yet in my short career so does the candidate need to develop the whole working solution for an LLD problem or just the class & its methods ?
Hi Ayush, there are 2 types of round 1. LLD Round 2. Machine Coding Round In LLD round, usually it held for 45mins, in that full coding sometimes are not mandatory (depends upon company and interviewer), class diagram and sometimes partial coding works out too. In Machine coding round, it happens generally for more than 1:30hrs (depends upon different company), there they do expect full code with usecases which need to be satisfied.
Both. In 45 mins round, if you can explain with UML, always go for it and try to come up with UML in first 20-25 mins and rest 20 mins keep for coding. Couple of points: - Don't try to create perfect design. - involve interviewer and keep asking for his input.
i am not good at designing part and drawing uml diagrams all this stuff should i nned to shift my career to another one like any gove job through ssc cgl any help sir
I am a member, want to get the Gitlab code link but cannot find it in the member community. Can you please provide any keyword by which I can search it?
Hi Shreyansh. Let's say i can have different ways to print a board so i make an interface and different printers will implement that interface. Now this interface should be part of game class or the board class? Same doubt with winning strategy? And if we put it in game class then should we pass the whole board object or the matrix only. Keep making such videos❤
I think the board interface would be part of board concrete class. And you can make various types of board. In TicTacToeGame class you can use parent board interface for refrencing & apply run-time polymorphism to achieve various types of boards.
Hi Subhashish, usage of design patterns is not mandatory. Following SOLID principles is imp. As far as i can recollect, it's a very small question, no design pattern is needed for it. But all SOLID principles properly followed
Hi Ram, i am not comfortable in CPP, college mein padi thi but 7yr in company using Java only. really sorry buddy, but i will let other members if they can help to provide the same solution in Cpp
![BLACK BAG - Official Trailer [HD] - Only in Theaters March 14](http://i.ytimg.com/vi/Du0Xp8WX_7I/mqdefault.jpg)
I have been at this problem for 2 days and have been looking for a correct implementation and explanation. Finally found both in this video!! The only one on yt i think for tic tac toe. Thank you for realising that people start from basic problems❤
Thanks
I have one suggestion to use Factory and Null design pattern for the Piece interface. So there will be a factory responsible for returning a piece based on the type that we pass and if we have no such type then we will return a default object. This will help our printBoard function to not use if else instead directly print the object.
Thank you, this video cleared my understanding of relationships. Should have completed this before watching parking lot LLD.
thanks
Your channel is pure Gold Shrayansh. Thank you so much for this awesome playlist ❤
Thank you
The parallel drawn wrt java implementation really enriched the content, great video sir😄
thank you
Suggestions : Design Deck of Cards, ATM Machine, Splitwise and Vending Machine. A different set of problems...
can you provide code for the same. It will be nice if you can make video explaining the code and approach. It's high time to start a you tube channel bro
Amazing video. One improvement I would suggest is the use of proper access modifiers for methods and variables. Making everything public might be acceptable if someone is interviewing for an SDE-1 position, but for anything above that, it’s important to ensure that proper scopes and access modifiers are applied to each variable and method.
Hello Anshu
@Concept && Coding , this is the optimization we can do:
Instead of having while loop and then checking getFreeCells() again and again, we know that in 3*3 tic tac toe, player1 and player2 can play maximum 9 times. Thus, we can use simple for loop from 0 < i < board.size*board
size. If any player wins in between, we mark winner flag to true and break, else if for loop is exhausted we know it is Tie, thus redundant getFreeCall() loop is avoided.
Lol, you forgot to handle case explained in the video where player chooses wrong coordinate
We can also take a variable of boadSize * boardSize and at every turn decrease it 1. check this condition at first place before taking row, column input.if the variable value 0. It means all cells are filled means it's a Tie;
Good Explanation, I can able to understand even I do not know the language.
Firstly, thanks for the video Shreyansh. I have 2 queries regarding the arrows that you used for class diagram:
1.) The relation between (Board and Pieces) and (Players and Pieces)
seems to be of aggregation, but that arrow is not the sign of aggregation.
2.) What exactly that arrow represent as I have not seen that arrow anywhere in class diagrams?
why do we need PieceX and PieceO classes. I mean couldn't we simply pass PieceType.X in constructor of playingPiece for a user.. How does this decision make it a better design?
Good one. Liked the way you have used code and white paper.
Thanks
Hi, it's great.
Just one suggestion that, we should have strategy patterns for deciding the winner of the game.
It can help the devs have more fun game modes
Hi Priyam Raj
Initially it was said that all the videos are free but I still see many of them are locked. 😢
🥲 same but its worth to spend 199
Locked where?
@@anshumsharma3216 LLD playlist
@@world4376 but earlier said that it will be for free, also we know no one will do it for free
O(1) soln: Only check row, col and diagonal containing the last cell/last move. keep a counter for each row, col and diagonal, and just check if row[r]==sz or col[c]==sz || (r==c && diag[r]==sz) return true.
Thanks so much. Very insightful and helpful. Great work!!
Hi, This is really good. Keep up the good work.
Correct me If I am wrong.
Enumerations will violate the Open Close principle in SOLID principles.
Hence I think the design should be improved to follow all the SOLID principles.
Hey shreyansh, why do we need to seprate class for PlayingPiece? We can use enums instead right?
Hi Aniket, to me Piece is an Object which can have both the things "Properties" and "Function". That's why i define it as an object. Rather than enum.
But definitely you can also implement the same using enum
@@ConceptandCoding got it, btw thanks for this series Shreyansh. It’s an amazing resource to learn LLDs.
Thank you 🙏
I think we can make the board as abstract class and extend it as per different game boards like tictactoeboard, chessboard etc... and we can separate out the logic of checking the winner to the board class. This will help achieve single responsibility principle and also make game class reusable.
thanks sounds good but need to vheck with complete flow but thanks for the input
Can you please also explain the intuition behind choosing the design ? how do you decide when to which design pattern ? Also, when to have "is-a" or "has-a" relationship?
Hi Shreyansh , thanks for the videos. Can you please make a video on how to structure our codebase. what are models , controllers , services etc...
Noted
Have a doubt, is this enough for machine coding rounds? They are of 2-2.5hrs, and this can be coded in an hour max
Can you clarify this
yes in my view, ot should be sufficient
Got it, one more doubt, why are we not making variables private and using getters/setters
Is that not required for games or did I miss something?
Thanks.
@@justlc7 that would be good practice, i am focusing more on design, might be some gaps in coding implementation parts
@@ConceptandCoding Got it, thanks for the prompt replies.
Why would you create separate implementation for each peiceType. Cant we just create different instances of the PlayingPiece and assign the pieceType on runtime.
Just a suggestion , i think the GetFreeCells function is only acting as counter we can replace it with that and while checking IsWinner we can exit when we have first match rather than checking for all cases(except n queen).
Try it out buddy, logic sounds good
Hi Shreyansh, Do we need to make Playing Piece as an abstract class? as some one can directly create object of it without using PieceX and PieceO
Make sense, we can do that
Sir, in this problem, in most interviews, the expectation would be the design + implementation of isThereWinner() method ? Keeping the core design same, I am writing a more generalized and optimised version, thank you sir
:) thanks
Amazing content!!
Just one query -
Do we also need to write code in LLD interview questions?
yes
@@ConceptandCoding We are totally totally screwed now!
what is the reason for having the *Piece* as an enum and *PieceType* as class wrapping the enum?? instead we can directly use the enum right?? without *PieceType* class
Amazing Content
Thank you
@Shreyansh can you pls clarify my doubt that why playing piece class and it's child class is created, we can simply use the PieceTypeEnum only, this will not violate solid principles
yes, we can, i just thought in future, if any more playing piece need to be introduced with some specific logic, we can add that here.
but for this specific X and O you can you Enum too.
HI @Concept && Coding, why are we using inheritance to create PieceTypeX and PieceTypeO, can't we directly use the enumeration?
I am not able to understand.
public class PlayingSymbolX extends PlayingSymbol{
PlayingSymbolX() {
super(Symbol.X);
}
}
here we are just having any constructor. Any specific reason to use this way?
It would be helpful if you mention whether it's hindi audio or English audio in title. Getting frustrated everytime when I open the design which is hindi.
Thank you for this LLD series. I always get confused between the is-a , has-a , etc. relationships. Could you provide me any book or resources in which I could improve this ?
Hi Madhav, you can refer "Head First Design Pattern" book, its good
Hi Shraytansh,
I have a doubt. addPiece() should be in Board Class or Player Class? I think Player Can add the Piece, so adding piece is player Behaviour .
On the other side, we can say Board Object can be modified by adding Piece. By this, we can say addPiece() should in Board class. Which is correct and why?
Hi , i have one doubt why do we require PieceX and PieceO separate classes , since we will never have any different implementation for class members . it can just be a data member what char does it represent .
like
public class Piece {
private char sign;
Piece(char sign){
this.sign = sign;
}
public char getSign() {
return sign;
}
}
We can apply strategy pattern for winner logic as in future we can have some different logic for finding the winner ? Shrayansh
6. Parking Lot, Low Level Design | Amazon SDE2 Design interview question | Design Parking Lot -> how to access this video?
Why do we need a deque? Wouldn't a queue suffice?
Right queue is sufficient too.
wonderful video
Hey Shreyansh
I have one doubt that as you Game class is doing multiple things so in future if I need to change(or modify) winning logic, so is it following Single Responsibility Principle?
yes winning logic can be taken out of it and put in some static util class.
@@ConceptandCoding okay, this code isn't following Single Responsibility Principle, right?
Depends, how you are grouping your classes.
For example: for each method performing some task, we can not put into different class else we will face class explosion issue.
So sometimes we have to group some logical related functionality into 1 class.
That's why I said in LLD there is no 1 solution.
If you think winning logic does not belong to this class and should be other, go ahead but question is will you create separate class for each method?
@@ConceptandCoding "So sometimes we have to group some logical related functionality into 1 class." this clears as I will not create separate class for each method.
Hey shreyansh, why we need to make a separate child class for each type of enum?? Doesn't it violate liskov substituion principle, where child class is narrowing down the abilities of parent class?
Hi Amit
@@alekyaathaluri5123 hi
How do i practice LLD, i understand when it is explained but i am unable to solve or even approach the problem when it is stated?
Hi Shreyansh, I have one query
1. In the video you have 'player' contains 'playingPiece' which in turn contains 'pieceType'(pieceType is enum). What if we don't use 'playingPiece', instead we make 'player' contains 'pieceType'. So we make one less class than earlier. will the second design be better/worse than the first design? And how so?
Thanks, great content btw. really appreciate your work.
There is no one solution in LLD, but just think from future perceptive that can more fields will be added in playing piece in future (today it has only piece type), then you have to add them in player class.
@@ConceptandCoding this makes sense. thank you
Can anyone please tell Which lld pattern tells us that we should create PieceX and PieceO classes instead of passing piece type directly while creating player object
Open closed principle, lets say in future you need to add more Piece, you can add it easily
@@ConceptandCoding So shreyansh, if we pass pieceType directly to the player, how it will violate open closed principle?? Whenever we need a new pieceType, we have to add this in our enum either way and we can assign it to any new player?
Yeah, I thin we can directly use the enums instead of creating a class for the pieces. Might be a overengineer in my opinion
@Concept && Coding why did we use deque here? Instead, queue can be used right?
Right, queue is sufficient here
but how would you add the player to the front in a queue when the cell u specify Is not valid? (filled up)
Hello sir, Iam planning to buy ur RUclips membership, can you please cover the topics again in English only for the videos in which you have thought in hindi.
You have already implemented the code but It would be better if you start your explanation basic thought process and intuition behind the design.
I think isthereawinner() can be moved to board class. Let me know if it makes sense
Hey shreyansh, I was not able to access parking lot video, it says member access is needed, I don’t find member access join button anywhere. Also, I thought you’re doing it for free. Can you pls help me here with link for member access?
I am not able to find the n queen peoblem on your channel. Could you please share the optimisation logic for finding winner
It seems code will not work correct for the tie case. All players will get removed from the deque since you are using continue for the case when there is no free cells. It will give null pointer exception. Instead of continue, break should be used.
yes, there might be some buisness logic missing, that can be taken care of easily, but i think with this also design will not get impacted.
Why exactly chain of responsibility pattern needs to be used in case of logger? How else can this be implemented?
Definitely there can be other ways to implement loggers.
I used Chain of responsibility to implement it.
Could you try to do it some other way, then we can discuss more.
thank you very much for such a great content .
Thanks 🙏
hi, here can you please explain what is the need of making separate classes for each playingpeice like can't we make a common class here, like enum pieceType then just make two objects of it with X and O type
umm yea thats also correct
Hey dhruv, can you please explain why we need a class for a pieceType in the first place?? We can just assign pieceType to each player through constructor only na??
isThereWinner should be in board class or am i thinking in the wrong direction?
Sir, will i need to code this whole in the interview of sde1 amazon or just provide the class diagrams and explanation?
interviewer can ask you to code Vishal, its a good question for 60mins interview
@@ConceptandCoding I have last round of interview at amazon most probably bar raiser round, my first two rounds were purely technical rounds which I have cleared so will they ask me to code in bar raiser or ask leadership principles related stuff.. I am so much confused right now..pls help
Hi Vishal, i think Bar Raiser round is also rown as Loop round, pls correct me, if this is the case yes in Loop rounds, there will be coding questions+ Leadership principles questions too. Generally Amazon has 5 rounds, of 2 you have cleared then i am thinking its loop round only where rest 3 round will happen including managerial round.
@@ConceptandCoding Things have changed now there are only 4 rounds now. 1 OA + 2 technical + 1 bar raiser.
Vishal, i would suggest, you can join this telegram group t.me/+KwJhmit5yDczNzY1
and ask the question
i am not able to get playing piece class initialisation. How did we are assigning X and O to the player
I have a question: What happens if both players opt for the same type of playing piece?
We can add some validation in the code buddy to avoid these kind of situation
@@ConceptandCoding My second thought was not to keep the playing pieces inside the player and to randomly assign playing pieces to players during the game, eliminating the need for players to change their playing pieces during the game. Would this be a beneficial enhancement, or might it potentially conflict with certain design principles?
@@dineshhardasani415 i has the same thought...did you get your ans?
Can you please add a video for splitwise LLD
Thanks
Noted.
Do we actually need to check free space every time? Cant we just check the number of free cells by keeping the count? For example in a 3x3 board initially 9 free cells will be there, we can decrease the count each time user makes a move.
Yes we can do. Implementation we can do with many ways, but overall design is imp for this video. But yes there might be efficient way to implement the logic
Hi, I have not given any system design interviews yet in my short career so does the candidate need to develop the whole working solution for an LLD problem or just the class & its methods ?
Hi Ayush, there are 2 types of round
1. LLD Round
2. Machine Coding Round
In LLD round, usually it held for 45mins, in that full coding sometimes are not mandatory (depends upon company and interviewer), class diagram and sometimes partial coding works out too.
In Machine coding round, it happens generally for more than 1:30hrs (depends upon different company), there they do expect full code with usecases which need to be satisfied.
In the LLD interview, do we have to create diagram only or write code as well?
Both. In 45 mins round, if you can explain with UML, always go for it and try to come up with UML in first 20-25 mins and rest 20 mins keep for coding.
Couple of points:
- Don't try to create perfect design.
- involve interviewer and keep asking for his input.
I think you have not checked if row column is more than size.
Possible that some validations are missing we can add those
your huhhhh at last....🤣🤣
Can we use factory design pattern to generate Playing Piece subclass object,
i am not good at designing part and drawing uml diagrams all this stuff should i nned to shift my career to another one like any gove job through ssc cgl any help sir
Hi I am a beginner and wanted to ask that if I can LLD in c++?
In system design interview round, we only need to design the application or also need to code
In some interviews like machine coding round, we have to do complete code too. And in normal LLD round complete code is not mandatory
Very Nice video
How to find the winner in O(1), please share link of problem that you are referring in video.
Hi kindly check the description, I have shared the link there
@@ConceptandCoding plz share i checked in the discription
Instead of model class for piece can't we make it enum it make code easier
There can be many approach, so do try it out
I am facing an issue while joining membership where I am unable to proceed further after adding card details. Can someone please guide me
I'm paid subscriber of the channel not able to find github link for the code in member community post. Can you please help?
gitlab.com/shrayansh8/interviewcodingpractise/-/tree/main/src/LowLevelDesign
Hi Apoorva
I am a member, want to get the Gitlab code link but cannot find it in the member community. Can you please provide any keyword by which I can search it?
just type the link and you will get there
can we have PieceType[][] board instead of PlayingPiece[][] . And if no why no?
Is parking lot problem not free in the playlist ?
i am not able to use Pair in this.
can we use factory method pattern to obtain player object?
yes we can and also use Null object design pattern to return a default object just in case we dont have a class for a given type.
very helpful
Thanks
@ConceptandCoding, I have joined the community as a member still I am unable to access the videos, is there a specific reason for it?
how to join as members..some videos gets like member only
Hi Shreyansh. Let's say i can have different ways to print a board so i make an interface and different printers will implement that interface. Now this interface should be part of game class or the board class? Same doubt with winning strategy? And if we put it in game class then should we pass the whole board object or the matrix only.
Keep making such videos❤
I think the board interface would be part of board concrete class. And you can make various types of board. In TicTacToeGame class you can use parent board interface for refrencing & apply run-time polymorphism to achieve various types of boards.
just to know like what design pattern is used here 🤔 can anyone please explain to me.
I tried to open the parking lot video but asking membership
please add uml also for easy reference
Hi
I already made a payment of 59rupees per month but still unable to access the member only vieeo
Please help
Which design pattern follows for this design?
Hi Subhashish, usage of design patterns is not mandatory. Following SOLID principles is imp.
As far as i can recollect, it's a very small question, no design pattern is needed for it. But all SOLID principles properly followed
@@ConceptandCoding Thanks a lot.
hi, where can we check the code for these videos in git?
gitlab.com/shrayansh8/interviewcodingpractise/-/tree/main/src/LowLevelDesign
not able to get the git repo shrayansh
gitlab.com/shrayansh8/interviewcodingpractise/-/tree/main/src/LowLevelDesign?ref_type=heads
Thank you!
Sir can you share n queens problem video link ?
Bro, is there a english version?
Please make in c++ too
i am not a c++ guy buddy, sorry
cpp me bhi code provide kr dete sir, bhut help ho jata
Hi Ram, i am not comfortable in CPP, college mein padi thi but 7yr in company using Java only. really sorry buddy, but i will let other members if they can help to provide the same solution in Cpp
@@ConceptandCoding Thank You sir
Hi Ram, I can help you with this , if you still need this. Let me know if you do.
@@Prashantkumar-pn6qq sure bro, please provide the codes
@@RamKumar-kz8gg I'll try to push it to github by next week
thankyou bro.
You're welcome!
❤❤❤
Requesting splitwise LLD
Thanks
i wish your codes were in c++
can anyone please share the code base link🥲
grat
Thanks