【BZOJ 4662】Snow

相关链接

题目传送门:http://www.lydsy.com/JudgeOnline/problem.php?id=4662
神犇题解:http://www.cnblogs.com/ccz181078/p/6291464.html

解题报告

想了两个小时没有想出来
一看题解,居然是姿势优雅的暴力

考虑最开始的区间一定是长这样的

删掉正中间的那个区间之后就变成了这样

发现蓝色框住的区间右端点相同了,绿色框住的区间左端点相同了!
于是两个椭圆框住的区间以后就可以进行区间维护了,不用再一个一个改
复杂度的话,因为暴力修改会进行 $ O(n)$ 次,所以单次修改操作的均摊复杂度为 $ O(\log n)$

具体实现上的话,用线段树支持区间操作
再用一个并查集搞一搞,右端点/左端点相同了就并一起
修改就暴力再并查集上爬一爬就好啦!

83 thoughts to “【BZOJ 4662】Snow”

  1. I just couldn’t leave your site prior to
    suggesting that I really enjoyed the usual info a person provide to your visitors?
    Is going to be back incessantly to check up on new posts

  2. This design is spectacular! You certainly know how to keep a reader amused.
    Between your wit and your videos, I was almost moved to
    start my own blog (well, almost…HaHa!) Great job. I really loved
    what you had to say, and more than that, how you presented it.
    Too cool!

  3. hi!,I like your writing very a lot! proportion we be
    in contact more about your article on AOL? I require a specialist in this house to solve my problem.

    May be that’s you! Having a look forward to peer you.

  4. Thanks for ones marvelous posting! I actually enjoyed reading it, you will
    be a great author.I will make certain to bookmark your blog and will
    often come back in the foreseeable future.
    I want to encourage you to definitely continue your great posts, have a nice evening!

  5. Its like you learn my thoughts! You appear to understand a lot
    about this, such as you wrote the book in it or something.
    I think that you could do with a few % to pressure the message house a little bit,
    however instead of that, that is magnificent blog.
    A fantastic read. I’ll definitely be back.

  6. I believe what you typed made a ton of sense.
    However, what about this? what if you typed
    a catchier title? I am not suggesting your content is not good., but suppose you
    added something that makes people desire more? I mean 【BZOJ 4662】Snow – Qizy's Database is a little
    plain. You ought to glance at Yahoo’s front page and note how they write article headlines to grab
    viewers to click. You might add a related video or
    a pic or two to grab people excited about everything’ve got to say.
    In my opinion, it might make your posts a little livelier.

  7. Have you ever considered about including a little bit more than just your articles?

    I mean, what you say is important and everything. However think of if you added some great pictures or videos
    to give your posts more, “pop”! Your content is excellent but with images
    and video clips, this blog could undeniably be one of the greatest in its
    field. Very good blog!

  8. Hi, I do think this is a great blog. I stumbledupon it 😉 I’m going to
    revisit yet again since i have saved as a favorite it.
    Money and freedom is the greatest way to change, may you be rich and continue to guide others.

  9. Hello, I think your website might be having browser compatibility issues.
    When I look at your website in Safari, it looks fine but when opening in Internet Explorer,
    it has some overlapping. I just wanted to give you
    a quick heads up! Other then that, excellent blog!

  10. Hey I know this is off topic but I was wondering if you knew
    of any widgets I could add to my blog that automatically tweet my newest twitter updates.
    I’ve been looking for a plug-in like this for quite some time and was hoping maybe you
    would have some experience with something like this.
    Please let me know if you run into anything. I truly enjoy reading your blog and I look forward to your new updates.

  11. Hi there would you mind sharing which blog platform you’re working with?
    I’m looking to start my own blog soon but I’m having a tough time choosing between BlogEngine/Wordpress/B2evolution and Drupal.

    The reason I ask is because your design and style seems different then most blogs and I’m looking for something unique.

    P.S My apologies for getting off-topic but I had to ask!

  12. I really like your blog.. very nice colors & theme. Did you design this
    website yourself or did you hire someone to do it for you?

    Plz reply as I’m looking to design my own blog and would like
    to know where u got this from. thanks a lot

  13. Thanks for the marvelous posting! I really enjoyed
    reading it, you could be a great author. I will always bookmark your blog and will come back
    very soon. I want to encourage that you continue your great work, have a nice afternoon!

  14. You really make it appear so easy with your presentation however I
    to find this matter to be actually something which I feel I’d by no means
    understand. It kind of feels too complex and extremely vast
    for me. I am looking ahead for your subsequent post, I’ll try
    to get the hold of it! pof natalielise

  15. I know this if off topic but I’m looking into starting my
    own weblog and was wondering what all is required to get set up?
    I’m assuming having a blog like yours would cost a pretty penny?
    I’m not very internet savvy so I’m not 100% positive. Any tips or advice would be greatly appreciated.

    Kudos

  16. Greetings from Carolina! I’m bored at work so I decided to check out your website on my iphone during lunch break.

    I enjoy the information you provide here and can’t wait to take a look when I get home.

    I’m shocked at how fast your blog loaded on my cell phone ..
    I’m not even using WIFI, just 3G .. Anyways, wonderful blog!

  17. Howdy I am so glad I found your blog, I really found you by
    mistake, while I was looking on Yahoo for something else, Nonetheless
    I am here now and would just like to say kudos for a incredible post and
    a all round thrilling blog (I also love the theme/design), I don’t have time to go through it all at the moment but I have saved it
    and also included your RSS feeds, so when I have time I will be back to read a great deal more,
    Please do keep up the awesome jo.

  18. My programmer is trying to persuade me to
    move to .net from PHP. I have always disliked the idea
    because of the costs. But he’s tryiong none the less. I’ve been using Movable-type on a number of websites for about
    a year and am anxious about switching to another platform.
    I have heard fantastic things about blogengine.net. Is there
    a way I can transfer all my wordpress posts into
    it? Any help would be really appreciated!

  19. Good day! This is my first visit to your blog!

    We are a group of volunteers and starting a new initiative in a
    community in the same niche. Your blog provided us
    beneficial information to work on. You have done a marvellous job!

  20. Please let me know if you’re looking for a article author for your
    site. You have some really good articles and I think I would be a good asset.
    If you ever want to take some of the load off, I’d absolutely love
    to write some articles for your blog in exchange for a link back
    to mine. Please send me an email if interested.
    Kudos!

  21. When someone writes an piece of writing he/she maintains the plan of
    a user in his/her mind that how a user can be aware of it.
    Thus that’s why this post is perfect. Thanks!

  22. It’s perfect time to make a few plans for the longer
    term and it is time to be happy. I’ve learn this put up and if I may I want to counsel you some fascinating things or tips.
    Maybe you can write next articles regarding this article.
    I wish to read even more issues about it!

  23. Thanks for a marvelous posting! I genuinely enjoyed reading it,
    you happen to be a great author.I will be
    sure to bookmark your blog and will eventually come back
    from now on. I want to encourage continue your great work, have a
    nice morning!

  24. Hey there! Do you know if they make any plugins to assist with
    SEO? I’m trying to get my blog to rank for some targeted keywords but I’m not seeing very good results.
    If you know of any please share. Kudos!

  25. I’m impressed, I have to admit. Rarely do I
    encounter a blog that’s equally educative and amusing, and let me tell you, you have hit the nail on the head.
    The issue is an issue that not enough people are speaking intelligently
    about. Now i’m very happy that I stumbled across this
    in my search for something regarding this.

  26. Hey! I could have sworn I’ve been to this site before
    but after reading through some of the post I
    realized it’s new to me. Anyhow, I’m definitely glad I found it and I’ll be bookmarking and checking back often!

  27. My spouse and I absolutely love your blog and find many of
    your post’s to be just what I’m looking for. Would you offer guest writers to write content
    for yourself? I wouldn’t mind creating a post or
    elaborating on most of the subjects you write with regards to
    here. Again, awesome site!

  28. I’d like to thank you for the efforts you have
    put in writing this site. I’m hoping to check out the same high-grade content by you in the
    future as well. In fact, your creative writing abilities has
    encouraged me to get my own blog now 😉

  29. Heya this is kinda of off topic but I was wondering if
    blogs use WYSIWYG editors or if you have to manually code with HTML.
    I’m starting a blog soon but have no coding expertise so I wanted to get
    guidance from someone with experience. Any help would be greatly appreciated!

  30. My brother recommended I may like this website.
    He was once totally right. This post truly made my day.
    You cann’t imagine simply how so much time I had
    spent for this information! Thank you!

  31. Greate pieces. Keep writing such kind of information on your page.
    Im really impressed by your site.
    Hey there, You’ve performed a fantastic job. I will
    certainly digg it and individually recommend to my friends.
    I’m sure they will be benefited from this web site.

  32. Excellent pieces. Keep writing such kind of information on your page.
    Im really impressed by your blog.
    Hello there, You have done an excellent job. I’ll certainly digg it and individually suggest to my friends.
    I am sure they will be benefited from this site.

  33. My partner and I stumbled over here from a different
    web page and thought I may as well check things out. I like what I see
    so now i am following you. Look forward to finding out about your web page
    for a second time.

  34. Thanks a lot for sharing this with all of us you actually realize what you are speaking
    approximately! Bookmarked. Kindly also seek advice from my web site =).

    We will have a hyperlink exchange contract between us

  35. Howdy this is kind of of off topic but I was wanting to know if blogs use WYSIWYG editors or if you have
    to manually code with HTML. I’m starting a blog soon but have no coding know-how so I wanted to get guidance
    from someone with experience. Any help would be
    greatly appreciated!

  36. I like the helpful information you supply for your articles.
    I will bookmark your weblog and take a look at once more right here regularly.
    I am reasonably certain I will be informed a lot of new stuff
    right here! Best of luck for the following!

  37. This is very interesting, You are a very skilled blogger.
    I have joined your feed and look forward to seeking more of your magnificent post.

    Also, I’ve shared your site in my social networks!

  38. Hello! Do you know if they make any plugins to assist with Search Engine Optimization? I’m trying to get my
    blog to rank for some targeted keywords but I’m not seeing
    very good success. If you know of any please share.
    Thank you!

  39. Howdy are using WordPress for your blog platform? I’m new
    to the blog world but I’m trying to get started and create my
    own. Do you require any coding knowledge to make your own blog?
    Any help would be greatly appreciated!

  40. This is really interesting, You are a very skilled
    blogger. I have joined your rss feed and look forward to seeking more of
    your magnificent post. Also, I have shared your web site
    in my social networks!

  41. You actually make it appear really easy along with your presentation however I in finding this matter
    to be really something that I feel I would by no means understand.
    It sort of feels too complex and very wide for me. I’m looking
    ahead in your subsequent post, I will attempt to get the cling
    of it!

  42. Hi! This is kind of off topic but I need some guidance from an established blog.
    Is it hard to set up your own blog? I’m not very techincal but I can figure things out pretty
    quick. I’m thinking about making my own but I’m not sure where
    to start. Do you have any points or suggestions?
    Many thanks

  43. Hey there, You have done an excellent job. I will certainly digg
    it and personally suggest to my friends. I am sure they’ll be benefited from this web site.

  44. Woah! I’m really enjoying the template/theme of this blog. It’s simple, yet effective. A lot of times it’s tough to get that “perfect balance” between usability and visual appeal. I must say that you’ve done a amazing job with this. Additionally, the blog loads extremely quick for me on Internet explorer. Superb Blog!

  45. Unquestionably imagine that which you said. Your favorite reason appeared to be at the web the easiest thing to bear
    in mind of. I say to you, I certainly get irked while folks think about concerns
    that they just don’t recognize about. You controlled to hit the nail upon the highest and outlined out the entire thing with no
    need side effect , other folks can take a signal. Will probably be again to get more.
    Thanks

  46. Thank you for another informative site. The place else could
    I am getting that type of info written in such an ideal manner?

    I’ve a venture that I’m simply now running on, and I’ve been on the look out for
    such info.

  47. Thanks for some other informative website.
    The place else may I am getting that kind of info written in such
    a perfect approach? I have a undertaking that I’m just now operating on, and I have been at the glance out for such info.

  48. Hi! I know this is kinda off topic nevertheless I’d figured I’d ask.
    Would you be interested in trading links or maybe guest writing a blog post or vice-versa?

    My site discusses a lot of the same subjects as yours and I think we could greatly benefit from each other.

    If you are interested feel free to send me
    an e-mail. I look forward to hearing from you!

    Wonderful blog by the way!

  49. Have you ever thought about publishing an ebook or guest authoring
    on other sites? I have a blog based on the same topics you discuss
    and would love to have you share some stories/information. I know
    my visitors would enjoy your work. If you’re even remotely interested, feel free
    to shoot me an e-mail.

  50. No matter if some one searches for his essential thing, so he/she
    desires to be available that in detail, therefore that thing is maintained over here.

  51. Howdy! I just wish to offer you a huge thumbs up for your excellent information you have right
    here on this post. I will be returning to your website for more soon.

  52. Hey, you used to write fantastic, but the last few posts have been kinda boring?K I miss your super writings. Past several posts are just a little bit out of track! come on!

Leave a Reply to quest bars cheap Cancel reply

Your email address will not be published. Required fields are marked *