snackdown'17 qualifer certificates?????
when will we get the snackdown 2017 qualifer round certificates????
View ArticlePlaylist to become yellow/red on codechef, codeforces in two months
Everyone wants to improve as soon as they can and reach the top of the leaderboard so I have found a website/community made by one of the best programmers of India Keshav Dhandhania . It looks that he...
View ArticleCHEFDIV - Editorial
PROBLEM LINKPracticeContestDIFFICULTYeasyPREREQUISITESnumber theory, prime factorization, segmented sievePROBLEMA divisor tree with value at root $N$ is defined as follows. For each node of the tree,...
View ArticleDISHLIFE - Editorial
PROBLEM LINKPracticeContestDIFFICULTYsimplePREREQUISITESgeneral programming skillsPROBLEMThere are $n$ islands, and $k$ ingredients numbered from $1$ to $k$. Each island contains some ingredients, let...
View ArticleKarma requirements on CodeChef
Is there a list where we can know the karma requirements for various activities possible on CodeChef Discuss ? (for ex. upvote, ask Q, downvote, edit other's answer etc.)
View ArticleWhy this POSTTREE submission is giving SIGABRT ?
In the solution to POSTTREE I had tried using a stack and passed it in recursive function . It is giving me SIGABRT error , although i doubt this is because of excessive memory allocation due to call...
View Articlemysql related
hi,u all. i m working with a project library management,nd i stuck to a point dat how i delete a book from book available table nd insert into book issued table by clicking request button?plz help me out
View ArticleMXMEDIAN - Editorial
Problem LinkPracticeContestAuthor:Praveen DhinwaTester:Pawel Kacprzak and Misha ChorniyEditorialist:Bhuvnesh JainDifficultyEASYPrerequisitesGreedy, Sorting, MedianProblemYou are given an array $A$ of...
View ArticleSnack Down Editorials
When will the editorials for SnackDown 17 come?If not official can someone please post editorials of the problems they solved from snack down 17.
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Not able to view June Challenge page
Why am I not able to view the June Challenge page in my laptop?Rest of the pages are accessible comfortably, even the discuss page.Thanks in advance.P.S. I have tried refreshing the page a number of...
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Codechef Rating Predictor
Hello everyone!Codechef Rating PredictorThe delay in previous month rating changes + inspiration from CF Predictor and for the practice of a web-application, i tried to write a script that can predict...
View ArticlePlease help me with CHEFSQ.
I am getting wrong answer when I submit.Can anyone please point out the mistake I am making?Here is my solution:https://www.codechef.com/viewsolution/14180637
View ArticleSmall query on pre-calculations
Excuse me, can I ask everyone a question?. As I know, we can calculate sum of a sub-rectangle in a 2D-matrix in O(1) by pre-calculating a 2D-Prefix sum. So I wonder that: are there any way to calculate...
View ArticleIncorrect Time Limits on June Long Challenge
Some of the problems in the June Long Challenge (such as UNIONSET) say that the required runtime is 1 second. But when I get a TLE, it says my program ran for 2.01 seconds before timing out. So, is the...
View ArticleCheating(June long)
@adminProblems of June long 2017 were discussed in this website link textThis is happening since oct 2016.Please do something and make sure that this won't repeat again.I did post this during contest...
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Spamming on Codechef Discuss
@souerav is spamming discuss questions with some inappropriate links, @admin please take strict action ASAP. EDIT: Action has been taken against him.
View ArticleLEDGER - Editorial
PROBLEM LINK:PracticeContestAuthor:Yash SangaiTester:Sudhanshu GuptaEditorialist:Sudhanshu GuptaDIFFICULTY:MEDIUMPREREQUISITES:Pigeonhole principle, DPPROBLEM:In a given array of integers of size N,...
View ArticleTRIPLET - Editorial
PROBLEM LINK:PracticeContestAuthor:Sudhanshu GuptaTester:Sudhanshu GuptaEditorialist:Sudhanshu GuptaDIFFICULTY:HARDPREREQUISITES:String Matching, Z-Algorithm, DP, PalindromesPROBLEM:Given three strings...
View Articlecurious to know the solution for chef and prime queries
Can any one share any simple approach for the problem chef and prime queries in in the June challengechef and prime queries
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