Codechef long challenge solutions github

It's pretty good position considering that over 4, people took part in the contest.

codechef-long-challenge

This post will show you how to get in the top 10 list. I will also try to do some post-mortem analysis of why the first place wasn't mine. I like to win. I didn't know I like it until I started winning. Besides the good feeling, high ranking on a global competition looks really good on my CV. Imagine job interviewer reading your CV and there's your university degree. Mhm, says the interviewer.

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Then he looks down and pauses Top 10 in global competition? Think about it. Okay, so you would like to win. How do you go about it? The first thing to notice is that all the winners always solved all 10 problems in the contest. Usually around players get all 10 problems right in any given contest.

It means that just by solving all 10 problems you are already securing high ranking for yourself. The problems are all solvable using information freely available on the Internet. Mostly it's graph theory, search trees, Conway's theory of games, combinatorics, and the usual dynamic programming and greedy algorithms.

Basics of these theories are taught routinely at universities and at various courses. But the basics aren't enough. You will have to do some research.

Often all the necessary information is in a couple Wikipedia articles. Sometimes you can find various useful bits on other sites or in various PDFs published by university teachers. Search is your friend. Browse around looking for keywords. Once you have the right keywords, it is usually easy to find the algorithm you need.

Chances are the new problem is just a variation of the old one. I don't always follow the theory though. Oftentimes it is easier to reinvent my own algorithm than to find existing one. Look at the input limits. They tell you the expected complexity of the solution, because limits in CodeChef are always set to require optimal solution. The expected complexity class of the solution suggests the kind of algorithm that will be needed. Lower limits will allow for polynomial solution.Solutions for various Competitive Progamming puzzles that I have solved.

codechef-solutions

Some of the questions I've solved in my Competitive Programming Journey. I am a regular participant at various online coding platforms like Codeforces, Codechef 4 starHackerrank and Hackerearth.

This repository contains solutions to various competitive programming problems across different platforms to help budding competitive coders. Add a description, image, and links to the codechef-long-challenge topic page so that developers can more easily learn about it.

Curate this topic.

Myths every Competitive Programmer should know

To associate your repository with the codechef-long-challenge topic, visit your repo's landing page and select "manage topics. Learn more. Skip to content. Here are 11 public repositories matching this topic Language: All Filter by language.

Sort options. Star 3. Code Issues Pull requests. Solutions for codechef contests. Updated Jan 20, Python. Star 1. Codechef Java Solutions. Updated Mar 15, Java. Updated Jun 19, C.

codechef long challenge solutions github

CodeChef Reciping Attempts. Updated Apr 12, Python. Star 0. Competitive Programming questions frfom Code Chef. Updated Oct 18, Python. CodeChef Challenges' Solutions. Updated Aug 11, Python. Updated Apr 16, Python.

Improve this page Add a description, image, and links to the codechef-long-challenge topic page so that developers can more easily learn about it. Add this topic to your repo To associate your repository with the codechef-long-challenge topic, visit your repo's landing page and select "manage topics.

You signed in with another tab or window. Reload to refresh your session. You signed out in another tab or window.Solutions of Various Online Judges and competitive programming contests. My solutions to the various problems from Codechef Contests in C and Java very few. This repository contains solutions of codechef beginner level problems. Add a description, image, and links to the codechef-solutions topic page so that developers can more easily learn about it.

Curate this topic. To associate your repository with the codechef-solutions topic, visit your repo's landing page and select "manage topics. Learn more. Skip to content. Here are 10 public repositories matching this topic Language: All Filter by language. Star 1.

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Code Issues Pull requests. Updated May 24, C.

codechef long challenge solutions github

Star 0. My algorithm and DS exercises. Updated Aug 6, C. Everything that I have done in C - Tutorials, Problem solving.

Updated Sep 9, C. A collection of my implementations and Personal Experiences. Updated Jun 16, C. Updated Dec 24, C. Updated Jun 19, C. Updated Dec 16, C. Updated Mar 1, C. Updated Mar 15, C. Star 8. Updated Apr 1, C. Improve this page Add a description, image, and links to the codechef-solutions topic page so that developers can more easily learn about it. Add this topic to your repo To associate your repository with the codechef-solutions topic, visit your repo's landing page and select "manage topics.

You signed in with another tab or window. Reload to refresh your session. You signed out in another tab or window.My solutions to problems from various competitive programming websites. This repository also contains my accepted solutions of questions on various online judges. My implementations of various DS and algorithms, alongwith my submissions on coding platforms like Codechef, Hackerrank, Hackerearth etc.

There are solutions of some basic problems and some tricky problems.

codechef long challenge solutions github

There are also hackerrank, hackerearth, codechef problem's solutions. This repository contains python programming with data structures and algorithms. This Repository contains all the basic utilities used in graph theory. Feel free to add something. More than Programs. Add a description, image, and links to the codechef-solutions topic page so that developers can more easily learn about it.

Curate this topic. To associate your repository with the codechef-solutions topic, visit your repo's landing page and select "manage topics. Learn more. Skip to content. Here are public repositories matching this topic Language: All Filter by language. Sort options. Star Code Issues Pull requests. We need to add every explanation in a new line and try to make it more interactive. This issue is for enhancement. I will send my PR only after I'm assigned to this issue by any maintainer.

I ensure that I'm not assigned to more than 2 issues. Assign this issue to me I want to work on this. It's not necessary for all for points to be checked, we will lo Read more.

Open Hackerrank problem solutions. Open Codeforces Problem Solutions. Open Data Structures in various languages. Star 9. Updated Apr 13, Python. Star 8. Updated Apr 1, C. Star 7. Solutions of various past and present competitive questions. Star 6. Star 5.New users are requested to go through the below information to know more about the contest.

CodeChef was created as a platform to help programmers make it big in the world of algorithms, computer programming, and programming contests. At CodeChef, we work hard to revive the geek in you by hosting a programming contest at the start of the month and another smaller programming challenge in the middle of the month.

CodeChef Long Challenge is a day monthly coding contest where you can show off your computer programming skills. The significance being - it gives you enough time to think about a problem, try different ways of attacking the problem, read the concepts etc.

We also put in a lot of efforts in getting quality problems, which would, in turn, foster your learning while solving them. The idea behind these programming contests is that we want you to learn while competing. Also we believe that it is alright to refer to tutorials, books and other materials, learn a concept and then apply the same to solve a problem during a contest.

But it is not alright to copy other people's solutions or seek other people's help to solve a problem without understanding it. The dividing line may seem to be thin but it can be captured by the spirit of learning. If whatever you are doing is making you learn while you do so, we tend to believe that it is alright.

However, if you are using any other online development environment, make sure that other contestants don't have access to your code.

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As a contestant, you are responsible for making sure others don't access the code that you submit. If you use Ideone, make sure to mark your submission "private" not secret ".

Due to the large number of submissions, and the number of test files in this problem, this will take a long time, possibly a couple of days. Ratings will be updated post this rejudge.

Sorry for the delay. The problems have been moved to the practice section. Solutions are public for all the problems. Ranklist will be recalculated and Laddus will be provided post ratings calculation. We will reopen the contest atonly for these two problems, for an additional 2. It has been reverted back to the original file, and all submissions made between 10am and pm IST today will be rejudged. All submissions made till now will be rejudged once the contest ends, so that even those submissions are not evaluated on these 4 test files.New users are requested to go through the below information to know more about the contest.

CodeChef was created as a platform to help programmers make it big in the world of algorithms, computer programming, and programming contests. At CodeChef, we work hard to revive the geek in you by hosting a programming contest at the start of the month and another smaller programming challenge in the middle of the month. CodeChef Long Challenge is a day monthly coding contest where you can show off your computer programming skills.

The significance being - it gives you enough time to think about a problem, try different ways of attacking the problem, read the concepts etc. We also put in a lot of efforts in getting quality problems, which would, in turn, foster your learning while solving them.

codechef long challenge solutions github

The idea behind these programming contests is that we want you to learn while competing. Also we believe that it is alright to refer to tutorials, books and other materials, learn a concept and then apply the same to solve a problem during a contest. But it is not alright to copy other people's solutions or seek other people's help to solve a problem without understanding it.

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The dividing line may seem to be thin but it can be captured by the spirit of learning. If whatever you are doing is making you learn while you do so, we tend to believe that it is alright.

However, if you are using any other online development environment, make sure that other contestants don't have access to your code. As a contestant, you are responsible for making sure others don't access the code that you submit. If you use Ideone, make sure to mark your submission "private" not secret ". The problems have been moved to the practice section.

Solutions are public for all the problems. Ranklist will be recalculated and Laddus will be provided post ratings calculation. CodeChef was created as a platform to help programmers make it big in the world of algorithmscomputer programmingand programming contests. At CodeChef we work hard to revive the geek in you by hosting a programming contest at the start of the month and two smaller programming challenges at the middle and end of the month.

We also aim to have training sessions and discussions related to algorithmsbinary searchtechnicalities like array size and the likes. Apart from providing a platform for programming competitionsCodeChef also has various algorithm tutorials and forum discussions to help those who are new to the world of computer programming.

Try your hand at one of our many practice problems and submit your solution in the language of your choice. Preparing for coding contests were never this much fun! Receive points, and move up through the CodeChef ranks. Use our practice section to better prepare yourself for the multiple programming challenges that take place through-out the month on CodeChef.

Here is where you can show off your computer programming skills. Take part in our 10 days long monthly coding contest and the shorter format Cook-off and Lunchtime coding contests. Put yourself up for recognition and win great prizes. We use cookies to improve your experience and for analytical purposes.

Read our Privacy Policy and Terms to know more. You consent to our cookies if you continue to use our website. Hit Like Button below. Click here for the contest Ranks. CodeChef is a non-profit competitive programming community. In order to report copyright violations of any kind, send in an email to copyright codechef.

The time now is: Your IP: CodeChef - A Platform for Aspiring Programmers CodeChef was created as a platform to help programmers make it big in the world of algorithmscomputer programmingand programming contests.

Practice Section - A Place to hone your 'Computer Programming Skills' Try your hand at one of our many practice problems and submit your solution in the language of your choice.This guide is meant for beginners. Competitive Programming is an interesting activity which mixes problem solving with programming. It is not only enjoyable but also very demanded in placements. Competitive programming will make you very good at writing efficient programs quickly.

If you get really serious with competitive programming, it will make you an expert in data structures and algorithms. Any programming language will do. If you know only C, you can easily start.

But at some point of time especially when you reach advanced stagesyou'll need features which most languages have but C does not. Even if you are not confident of your skills in a programming language, you can and should still start. Competitive programming is also a good way to practice a new language you have learned.

Most websites will give you a specification and ask you to write a program implementing that. You will then have to submit your code. Your program will be automatically compiled and run and you'll be told whether it ran correctly or not. Such websites are known as online judges. Apart from that, there is also a website called Project Euler. Project Euler does not ask you to submit code.

It has direct problems.

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For example, their problems 7 asks you to find the th prime and submit the answer. You'll need to write code to find this out since you can't solve this by hand.

But once you have written the code, you just need to run it, find out the answer, and submit the answer not the code. Sometimes it takes time to get used to online judges and Project Euler can help you easily start. But I recommend that if you choose to solve problems on Project Euler, do it only when starting out. It has advanced problems as well, but I think solving problems on online judges will help you learn faster and is a better use of your time.

Most online judges have problems categorized by difficulty levels. For each difficulty level, easier problems generally have more submissions. So you can sort problems based on number of submissions to find the easiest ones. For beginners, I recommend Codechef.

How (not) to win CodeChef Long Challenge

If you have never before solved a problems on an online judge, you can begin by solving the easiest problem on Codechef - Life, the Universe, and Everything. If you face problems, you can refer to my solutions. I have submitted code in many languages, so you'll most likely find a solution in the language of your choice.


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