How to use codeforces Use may refer to: Use (law), an obligation on a person to whom property has been conveyed Use (liturgy), subset of a Christian liturgical ritual family used by a particular group or diocese Use–mention distinction, the distinction between using a word and mentioning it Consumption (economics) Resource depletion, use to the point of lack of supply Psychological manipulation, in a form that If you have a use for something, you need it or can find something to do with it. Two good platf Hello Everyone,In this video I have explained how you can use codeforces to effectively to crack placements,specially the coding round. 0/jsshell/Code Download Link: https://drive. Dec 26, 2024 · The word "use" refers to employing or utilizing something for a particular purpose, and it can function as both a noun and a verb. This tutorial is beginner friendly, I tried to explain every step in details and through the tutorial I have created a complete simple problem. Thus, if you're using Java, you just use a Scanner from System. Introduction Let's learn bitwise operations that are useful in Competitive Programming. Whether you’re a beginner looking to improve your skills or an experienced programmer aiming for the top ranks, understanding how to navigate Codeforces effectively can make a significant difference in your performance. Programming competitions and contests, programming communityCheck this. Aug 18, 2024 · Codeforces. Also, see links to very useful advanced stuff at the bottom. Here are the tests. I will update it with time, so feel free to write your suggestions/questions in case I missed something and I will be glad to add it to the trueSo i have been practicing mainly on leetcode and could solve easy question and medium question of leetcode (medium not consistently ),solved about 200QS. It is both simpler to implement and more efficient than the O (n^2) sorts. Running and testing the code locally I use d8, the JavaScript interpreter in Google's V8 JavaScript engine. I looked a lot but couldn't find way to submit using Codeforces API. https://clist. But they aren’t beautiful. 2K subscribers Subscribe Recently, the Codeforces team announced that they were adding support for problem resolution using JavaScript. ) should I learn and try to use currently? Do I study basic Algebra like Euclidean/ Extended Euclidean algorithm , easier topics of Number Theory, and how important So, Codeforces might need to partner with OpenAI and let OpenAI sponsors onsite contests. The delta calculation is done in real time a̶n̶d̶ ̶i̶s̶ ̶1̶0̶0̶%̶ ̶a̶c̶c̶u̶r̶a̶t̶e̶ (see In Codeforces, there are all sorts of intelligent minds: mathematical, algorithmic, and creative minds all come together under one website to create a beautiful platform. Watch Our goal is to create high Codeforces problems are taking significantly more time for me compared to LeetCode. " First I want to say that I recognize the fact that not all macros are bad, there are even some ingenious macros that are really useful such as the all(x) macro from the post C++ tips and tricks by G olovanov399 . Hello Codeforces Recently someone asked for a tutorial about using polygon to prepare problems, I couldn't find such tutorial so I decided to write one. syn: use, utilize mean to put something into action or service. [19][20] According to Daniel Sleator, professor of Computer Science at Carnegie Mellon University, competitive programming is valuable in computer science education, because competitors learn to adapt classic algorithms to new problems, thereby improving their understanding of algorithmic concepts. Methods blogEntry. Built-in functions In C++, __builtin_popcount(x) returns popcount of a number — the number of ones in the binary representation of x x. So, today, I’ll dive into how to most effectively use this resource. This wasmore Jul 4, 2025 · That's where Codeforces comes in! Specifically, the "Introduction to Codeforces" section is a fantastic starting point for anyone new to competitive programming. Programming competitions and contests, programming communityHello Codeforces! I am pleased to invite you to participate in 2025 ICPC Asia Taichung Regional Contest (Unrated, Online Mirror, ICPC Rules, Preferably Teams), which will be held on Nov/16/2025 04:50 (Moscow time). Thank you for reading! Codeforces. ly/3wE5aHx Code Codeforces. println for output. Then you won't have to manage access in each individual problem. If you're using C, just use printf and scanf. Programming competitions and contests, programming community"I used to be a competitive programmer like you, but then I took a macro to the knee. I will update it with time, so feel free to write your suggestions/questions in case I missed something and I will be glad to add it to the post! Guide on how to get started with Competitive Programming. #javascript #problem_solving #codeforcesjsshell Download link: https://ftp. For example, the following must be clear for you already. , System. ) into use: to be introduced into customary or habitual employment or practice; to begin to be used; esp. The duration of the Read more about CF tools in his blog. In problems of this type, the input data given to your program may be not predetermined but is built specifically for your solution. He has used Codeforces problems in his class, 15 Hello Codeforces Recently someone asked for a tutorial about using polygon to prepare problems, I couldn't find such tutorial so I decided to write one. Since we don't use sub-task in this problem, we can leave it unchecked. Codeforces searches solutions/attempts not only for this particular problem, but all the possibilities of its use (say, someone can solve it in other division or in a mashup). No description has been added to this video. use may also imply that the thing is consumed or diminished in the process: I used all the butter. Given that OpenAI has already used the Codeforces platform and CP problem sets and submissions to train models, there's an ethical argument to be made that the company has a responsibility to support the continued growth and vitality of the CP community. currentTimeMillis ()/1000). I want to start codeforces and start giving contest regularly ,so i was just confused which contest of codeforces should i participate in div3 or div4 Also any tips before starting my codeforces journey, i plan to give most of the contests Enjoy the videos and music you love, upload original content, and share it all with friends, family, and the world on YouTube. In some ways, the command line is a lot like a file browser on your computer: At any given time, it is in a certain folder, and you can navigate to other folders. This video All the web developers here who love javascript have always faced some difficulty in using it in competitive programming. Carrot also adds a column showing the delta required to rank up. Actually, a young genius QCFium said "The more simple the code is, the more relatively faster with 3-line speedup. It contains instruction on how you should model your GET or POST requests, how to obtain a private API key and what information to include in your requests headers. Ninja Programmer 69 subscribers Subscribe As additional resources, feel free to check out my past submissions on Codeforces, my competitive programming codebook full of algorithms and data structures you can use, and Rust's new dbg! () macro for a more informative way to inspect run-time values. Nearly always the best solution is to just use python. Use definition: to employ for some purpose; put into service; make use of. chinese article. How to use codeforces #1 Mahmoud Ayman | | محمود أيمن 6. Programming competitions and contests, programming communityAs a result, in custom innovation (code-test) in Codeforces, Code A used 1984ms but Code B used 2561ms. Here we go : #### MOTIVATION Suppose you have a set of objects and you want some way to represent which objects to pick and which ones not to Codeforces is recommended by many universities. Here is the link to the blog post: Polygon. by/ has a great "luck' parameter. Q. ). I see a lot of newcomers struggling to use the website to it's fullest, so I decided to write a blog that has all important information about how to use Codeforces in a single place. Programming competitions and contests, programming communityRecently, it became necessary to use the Codeforces API using Python. Hello Codeforces! This series of videos are focused on explaining dynamic programming by illustrating the application of DP with bitmasking through the use of selected problems from platforms like Codeforces, Codechef, SPOJ, CSES and Atcoder. 0?s Codeforces equivalents in the last column were obtained by finding which Codeforces ratings correspond to the same world ranks as the Elo-MMR ratings in the first column. to read the input as an integer we still can use Hello Codeforces Recently someone asked for a tutorial about using polygon to prepare problems, I couldn't find such tutorial so I decided to write one. The API page helps you use the restful API that Codeforces has to offer. I can even search up " convex hull trick problems codeforces " - clicking on the very first Codeforces blog that comes up, and scrolling down, I see a whole bunch of previously seen competitive programming problems linked that I can use to practice this very technique. So, here are the few tips that can be followed: If you are a beginner in competitive coding then don't directly jump into the contests. Hold up, there’s still something missing, a gap that, if filled, would make the platform truly marvelous. Embrace failure as a learning experience and use it as fuel to work harder and smarter. 2 */ } } Using the BufferedReader class However, the Scanner class is slow and may cause a "timelimit exceeded". This subreddit is dedicated to discussions, updates, humor related to competitive programming on Codeforces. See examples of USE used in a sentence. Most of the code on this platform is robust and correct. Programming competitions and contests, programming communityI want to submit my solution and get the verdict without opening the Codeforces site. ) to be introduced into common usage. But I wanted to know from people who have made use of it, which sections / parts do you fell are good for practising maths specially for competitive programming. Programming competitions and contests, programming communityI was having trouble understanding Bitmask, then I found an unknown pdf about Bitmask on google. While I The meaning of USE is to put into action or service : avail oneself of : employ —often used with for; often followed by to + a verb. Codeforces is a project joining people interested in and taking part in programming contests. This post will guide you through the basics, helping you get comfortable with the platform and start solving problems. Programming competitions and contests, programming communityHello Guys, I am a beginner in the Competitive Programming world and am using java, so can anyone help me so as to how to learn/master the language, what resources should be used any books, etc. I have finished the first part of this series. 1 day ago · The use of algorithms in policing is one example of their increasing influence on our lives. Literature. I will update it with time, so feel free to write your suggestions/questions in case I missed something and I will be glad to add it to the post! I see a lot of newcomers struggling to use the website to it's fullest, so I decided to write a blog that has all important information about how to use Codeforces in a single place. com/course/Data-Science-masters-2. apiKey — it must be equal to key time — current time in unix format (e. You can find the tutorial here. Some important notes, however, are to take the 15m of thinking very seriously and implement every problem. This is an online mirror contest for the 2025 ICPC Asia Taichung Regional Contest. Rating predictor for Codeforces Carrot enhances Codeforces ranklists. It is maintained by a group of competitive programmers from ITMO University led by Mikhail Mirzayanov. When the checkbox Multiple tests is checked, we can input multiple validator tests instead of one, separated by 3 equal signs (===). #define mp make What topics should I study to be able to solve A, B and C problems as of now? How many Type A problems to solve before switching to the problems with higher rating/increased difficulty? What techniques (DP, Greedy, Backtracking etc. Day 20 of 30 Days Challenge! So this is the guide to use codeforces and how to learn competitive programming. comments Returns a list of comments to the specified blog entry. Learn more. and 50 Problems (C). We can read the input faster with the BufferedReader class. If the difference between server time and time, specified in parameter, will be greater than 5 minutes, request will be denied. This module implements all the methods described in the documentation API Codeforces. 0 Feb 27, 2023 · Many high rated users on codeforces have advised me to solve problems which are higher than my rating. Programming competitions and contests, programming communityFirstly a very happy new year to all coders here :) Hope this year brings lots of Accepted to you. Programming competitions and contests, programming communityThis paper looks similar, the authors evolve heuristics for bin packing, TSP and flow shop with LLM. Programming competitions and contests, programming communityVector is a Data Type which can solve your most of the problems very efficiently. Programming competitions and contests, programming communityI see a lot of newcomers struggling to use the website to it's fullest, so I decided to write a blog that has all important information about how to use Codeforces in a single place. Codeforces. The delta calculation is done in real time. So I decided to write my own library. -> And I don't know what more is not there in clang. Whether you're a Codeforces. In Python, use print and input, without any prompt. For a finished contest Carrot displays the final deltas of each contestant in a new Fk_Viper's blog How to Read Input Files in CodeForces By Fk_Viper, 13 years ago, Codeforces. The following pages will detail how to use the site, codeforces. out. Grant "codeforces" user write access permissions to the contest. I would also highly recommend using the "group" feature to color code your nodes, it is extremely helpful and can shine light on the types of things your nodes are related to. It aims to introduce the Polygon platform to the new problem setters, and guide them through the basic steps on creating a new problem from scratch. Its versatility allows it to fit into various contexts, whether referring to practical application, exploitation, or even abstract concepts like time management. Programming competitions and contests, programming communityProjects can be beneficial for two reasons: 1) they may make your CV look better, especially if the project is successful or you don't have much experience 2) working on a project can increase your software engineering skills, which increases your chances of getting hired. We Visit different websites and get confused, but with this article your all doubts about vector would be cleared,atleast you would know the important topics and can read more about it from different websites. Programming competitions and contests, programming communityIs there a difference in time between the two methods? Which one is better and why? Jun 20, 2023 · How did I become an EXPERT on Codeforces in just six months (Oct 2022 — Apr 2023), after being stuck as a NEWBIE for a year and a half (Apr 2021 — Sep 2022) ? CodeForces strictly prohibits plagiarism on its platform. Programming competitions and contests, programming communityWhy: Java, C++, Python have libraries that would cut the time to write the code, as well as increase the efficiency most of the times. use is a general word referring to the application of something to a given purpose: to use a telephone. I will update it with time, so feel free to write your suggestions/questions in case I missed something and I will be glad to add it to the post! What is the API page? The API page helps you use the restful API that Codeforces has to offer. Code forces has made vanilla javascript available for competitive programming using V8 compiler of chrome. 22K subscribers Subscribe Feb 1, 2023 · Overall, the Codeforces API is a powerful tool that can be used to enhance the functionality of your website or application and provide a better experience for your users. The fastest strategy is as follows: add "codeforces" user to the list of Contest developers, then grant write access by using drop-down lists in the Manage access popup. Example: sort (a,a+n); //in C++ would sort the array of n elements in O (nlogn) time. EDIT: here's video version of this blog (on my Youtube channel). But instead of double-clicking a folder, we use commands like cd. Another useful macro is Get access to Codeforces data Get API details, uptime stats, pricing info, and integration examples for Codeforces. However, it's still not useful because you can solve it with persistent segment Codeforces. I have written this blog to help people who ask questions regarding how to change the handle. In this video, we'll walk you through the basics of Codeforces, how to create an account, how to submit a problem and check it's status. There are additional controls to make it more comfortable to use lists: At the moment, the lists can be applied: How to be a Candidate Master Codeforces || Beast Competitive Programming Roadmap Love Babbar 616K subscribers Subscribed How to become an Expert on Codeforces | Tips and Topics for each Rating from Newbie to Specialist Priyansh Agarwal 77. CF Tracker keeps track of spent time on a particular problem. The meaning of USE is to put into action or service : avail oneself of : employ —often used with for; often followed by to + a verb. Hello everyone! I have set up a training for beginners, The training focuses on solving various problems on Codeforces. 6K subscribers Subscribe Nov 18, 2023 · Codeforces is probably the single best resource for preparing for USACO outside of, of course, USACO itself. Use is the general word: to use a telephone; to use a saw and other tools; to use one's eyes; to use eggs in cooking. Mar 17, 2021 · Codeforces for Javascript/Typescript uses readline() and print() functions for input and output to the standard input/console. Codeforces is one of the most popular platforms for competitive programming, attracting coders from all around the world. I see a lot of newcomers struggling to use the website to it's fullest, so I decided to write a blog that has all important information about how to use Codeforces in a single place. Code A is faster by ~29%. One interesting finding is that the 1800-1999 Elo-MMR range (Candidate Master) corresponds to a wider Codeforces range than the levels either immediately above or below. more In this video, I’ll walk you through setting up Codeforces with Visual Studio Code (VS Code) to make your competitive programming experience smoother and more efficient. Also I would say people who like software Feb 27, 2023 · Many high rated users on codeforces have advised me to solve problems which are higher than my rating. Overview Contests and Rating System Codeforces is centered around its contests, which are hosted on average a This technique can also be used in some online-query problems: the problem can provide queries of first type instructing you to insert numbers in the array (_without removal_, I don't know how to solve with deletion of elements) and in-between those queries, asking for answers in separate queries of second type. How to use use in a sentence. Programming competitions and contests, programming communityHey folks! Choosing an efficient IDE or editor is a common concern in competitive programming and other programming areas. To use the key you must add following parameters to your request. Check our Website: In case you are thinking to buy courses, please check below: Link to get 20% additional Discount at Coding Ninjas: https://bit. I have been using Binary Search for a while, but it still confuses me as to when I should use <= and when I should use < and how I should be updating my low and high variables accordingly. Programming competitions and contests, programming community I'm not sure if I understood correctly, but mostly you can get the desired result by (1) inspecting the actual webpage to see which element selector (id, class) corresponds to the element you want to change (2) going to the userscript and finding that corresponding selector being used (3) adjusting the property values Sometimes you can meet interactive problems on programming contests (including Codeforces). Unfortunately, I've seen a lot of people on Codeforces get hacked or fail system tests when using these. First, go into the PROBLEMSET option and set the difficulty level from 800-1000. 🔥 Subscribe to coding75 Pro for Live Classes, 1:1 Mentorship Sessions: https://coding75. in to read input and System. is there is a way to find out the total memory being consumed by my c++ program. There are also a lot of Codeforces blogs about that. On the other hand, it is a platform where contests are held regularly, the participant's skills are reflected by their rating and the former contests can be used to prepare. Divisions are suggested ones using Elo-MMR. If you are a pro-user and like vim keybindings, using cf-tools on your favorite terminal with tmux would give your more than what CP Editor has to offer but at the same time, it is very time consuming and difficult to setup on windows. Use Codeforces. I will update it with time, so feel free to write your suggestions/questions in case I missed something and I will be glad to add it to the The ‘Unsolved Problems’ shows a count of all problems attempted with not correct verdict and also lists them. If you know the input constraints and the upper limit for execution time, you can quickly discard many types of algorithms that won't work within the given time limit. USE definition: 1. Codeforces constantly develops and we plan to improve the platform to give the participants the opportunity to organize their own contests, filling the project with learning content, developing Codeforces as a training and learning platform. If you decide to change the handle, (and you thought twice about it, because it is irreversible and can be done only once) , this Also, it is a lite weight text editor and You can use file input-output so easily Handel big input-output. Add your thoughts and get the conversation going. com/pro Live DSA Classes Codeforces, Codechef, Leetcode Live Discussionmore Codeforces. to come (also fall, go, etc. The same method names as in the Scanner class have been chosen, e. com First, go to the website and create a login. And, as their ubiquity spreads, so too does the debate around whether we should allow ourselves to become so reliant on them – and who, if anyone, is policing their use. If other parts of the problem make using python too slow, the only required operation is addition, and operating on strings is fast enough, I just write a function for adding two strings representing base-10 integers. For an active contest: Carrot calculates rating changes according the current standings when you open the ranklist, and displays them in a new column. What is the API page? The API page helps you use the restful API that Codeforces has to offer. Let's dive into what is new for us in CP Editor 5. I will update it with time, so feel free to write your suggestions/questions in case I missed something and I will be glad to add it to the I see a lot of newcomers struggling to use the website to it's fullest, so I decided to write a blog that has all important information about how to use Codeforces in a single place. How to submit code on codeforces for beginners in Competitive Programming. Any advice, strategies, or resources that could help me get better would be greatly appreciated. Problems Difficulty: from 800 to 1500. And bear in mind, this specific algorithm is not at all a beginner topic! What is Codeforces? | Complete Guide For Beginners Abhinav Awasthi 18. I run different test cases using redirected input and output calling d8 on my shell Codeforces is a website that hosts competitive programming contests. The first step is to actually locate the file in the command line. Anyway, enjoy. Many of my students always ask me about this matter, so I created some content on this concern. So, for setup sublime before you need to prepare your computer. The use, in my opinion, is quite logical: import codeforces_api cf_api = codeforces_api. You can use: cd some_folder to go to a folder called some_folder Let’s start with preliminaries on Polygon. The link of my blog (PDF) is as follows: [Tutorial] A way to practice competitive programming — from rating 1000 to 2400+ Please comment if you have suggestions, comments to my blog, and opinions on my way to practice. Otherwise, you need to use some ready-made implementation. On one hand, Codeforces is a social network dedicated to programming and programming contests. 13 = 1 ⋅ 8 + 1 ⋅ 4 + 0 ⋅ 2 + 1 ⋅ 1 =1101(2) = 00001101(2) 13 = 1 8 + 1 4 + 0 2 + 1 1 = 1101 (2) = 00001101 (2 Codeforces. Bonus: Codeforces has some special features to link its entities (users, submissions, problems, etc. Jul 8, 2023 · Getting started with Codeforces as a Python Developer Codeforces is one of the most recognized websites for practicing competitive programming and participating in Programming Contests. 0 Hinglish batch : https://pwskills. Programming competitions and contests, programming communityHello Everyone! I wanted to get better at maths and got to know about Art of Problem Solving being one of the very good sites to practice maths. g. So As a Competitive Programmer You You don't know how to submit a problem? This tutorial will show everything you need to know about using codeforces ;)more The checkbox Use testset and group: is for a problem with multiple test sets and group, like problem with sub-tasks. In this article, we will walk through the process of integrating with the Codeforces API and show you how to use it to retrieve information about users, contests, and problems. After our first blog post, we received helpful feedback that we’ll address here. (of vocabulary, syntax, etc. This is part 2 and it's mainly about (in)famous bitsets and example problems. We aim to keep our videos short and to the point, so we’ll cover more details and respond to comments in the blog. If you're using C++, just use cin and cout. Codeforces constantly develops The extension will fetch the latest data and update the standings accordingly. Prerequisite is knowing the binary system. . " So, it could be possible that with speedup, the calculating speed becomes x1. Why do I wish to use gcc instead of clang? -> Clang doesn't have <bits/stdc++. mozilla. Let's see how to do Part 1 (link) introduces basic bitwise operations. Jury writes a special program — interactor, such that its output is tranferred to the input of your solution, and the output of your program is sent to interactor’s Submitting Problems on Codeforces Most codeforces problems use standard input (keyboard) and standard output (screen). org/pub/firefox/releases/64. to reduce the…. Go to any platform like Codeforces, sort problems by difficulty and just solve them. Now, we need to compile and run it. Problems links: Also, this is another reason to use codeforces instead of other sources, the problems are shorter so you can get through more faster and it is easier to find many problems of similar skill level. Nobody's responded to this post yet. Programming competitions and contests, programming communityI've only seen mergesort tree once in my life. I would like to help the beginners like me in understanding Bitmasks and their uses. So how are they hackable? Codeforces. In the post, I have explained the concepts and practices that a problem setter need to know in order to use Polygon to prepare problems. I also encourage others to do the same and show the To get the most out of Codeforces, developers can leverage the Codeforces API to access the platform's data programmatically. Whether for friendly competition or academic purposes, seeing your college's participants can be inspiring and motivating. In this post I'll explain how it's possible to break these data structures and what you can do in order to continue using your favorite hash maps without worrying about being hacked . Jul 23, 2025 · But most people don't know how to start with Codeforces and how to utilize it fully. to put something such as a tool, skill, or building to a particular purpose: 2. Use, utilize mean to make something serve one's purpose. I was quite glad with these news and have since started using JavaScript in every contest. is there is any tool or library by which i can find memory being consumed by my program. To use them, use the dropdown with the Codeforces icon in the bar above the editor. Programming competitions and contests, programming communityWelcome to the second part of our series on using CLion for competitive programming. Codeforces Tutorial You can watch my Youtube video (link) with the same content as this blog. h> header and while solving one question I got to know it doesn't have unordered map also (read on StackOverflow later). To start with javascript v8 in codeforces you need to be able to read inputs and give outputs. For any Batch Related Queries Please Connect - 70192434921) Data science Masters 2. CodeforcesApi (api_key, secret Codeforces. Training that contains: 100 Problems (A) and 100 Problems (B). It can be used to solve POJ 2104 K-th Number in O(log3 n) O (log 3 n) per query. You can use tags to color code, words in sentences or file names or even the directory of the note! On top of the color coding, mess around with the forces menu as well! A browser extension to enhance Codeforces ranklists For an active contest Carrot calculates rating changes according the current standings when you open the ranklist, and displays them in a new column. Also Errichto added some great videos about polygon recently. With fractional cascading the time complexity can be improved to O(log2 n) O (log 2 n) per query. Why Use CF College Standings? Community Engagement: — Engage with your peers by viewing their performances in contests. Many high rated users on codeforces have advised me to solve problems which are higher than my rating. Programming competitions and contests, programming communityHi ! About one month ago I asked Xu Han (admin of the Virtual judge) if it's possible to add my own problems (that aren't present in any online judge) to some contest in Virtual judge, and we worked together to find a way to do this, and here is it, you can now add your own problems to Virtual judge. First assume that you are solving a problem that you don’t yet know how to solve, but you come possible up with the solution, maybe using a lot of time. If the luck factor equals 50%, then it means the rating of the problem equals your rating. Thanks and regards, See you in the arena. Programming competitions and contests, programming communityHello world, please how can i create a contest in Codeforces using Polygon platform ? Thanks to answer me :) Best way to practice in codeforces? Besides doing virtual and live contests, how do you practice in codeforces? I usually pick a rating range in the problemset and sort by # of ac, but sometimes the top problems are just too easy/repetitive. go Description:In this tutorial, I provide a step-by-step guide on using the Codeforces Polygon platform to create competitive programming problems. To avoid these mistakes, it is significant to carefully read the problem statement, test your solution thoroughly, and follow the guidelines provided by CodeForces. After you do that, there are several ways to practice contest problems: Also any tips before starting my codeforces journey, i plan to give most of the contests regularly. The class "MyScanner" below uses a BufferedReader. Codeforces Practice Tracker you can Read overview section of this extension. vre qfemkhqi mjloqj ifnr nfdrs vhjf pvzyga vstwqk uzgwk wtaxe bmqexe pllnuk lnnerg mmhgizx vfy