ROBOTG - Editorial
PROBLEM LINK:PracticeContestAuthor:Lewin GanTesters:Kamil DębowskiEditorialist:Lewin GanDIFFICULTY:EasyPREREQUISITES:NonePROBLEM:Given a robot, a grid, and a command string, find out if you can place...
View ArticleSpoj AGGRESIVE COWS
Please help to solve this problem on spoj, can't understand how to use binary search.
View ArticleHackerRank Week of Code 30 - POLES Problem
Can someone please look my code for POLES on HackerRank. Problem Link - https://www.hackerrank.com/contests/w30/challenges/poles Solution Link...
View ArticleClik here to view.
Just a minor bug
@admin There is a minor bug(I think so). In "My Submission" tab when I submitted code then icon of "result" shows "compile error" instead of "running". I think this was not there before site update.
View ArticleCould you please find the bug in the euler circuit in java.. Pleaseee
import java.io.BufferedReader; import java.io.IOException; import java.io.InputStreamReader; import java.util.Scanner; import java.util.StringTokenizer;public class ConnectingNode {static int[][] a;...
View ArticleFind Median in an Unsorted Array Without Sorting it
Given an unsorted Array A[1,2,3,.....N], Find the Medians in this array without sorting it in an efficient Way?
View ArticleICPC 2016 Online Round - Questions Not Added to Practice
It seems like the ICPC 2016 Online Round's questions have not been added to the practice section on Codechef. Contest link : codechef.com/ACMIND16Is there any particular reason why the questions...
View ArticleSPOJ EGGYPIZZA
LINK TO PROBLEM :http://www.spoj.com/problems/EGYPIZZA/i have solved above problem using frequency array but i read in comments other approaches using set,map,greedy. What are different solution to...
View ArticleENTEXAM - Editorial
PROBLEM LINK:ContestPracticeAuthor:Sergey KulikTesters:Vasya Antoniuk and Kevin AtienzaTranslators:Vasya Antoniuk (Russian), Team VNOI (Vietnamese) and Hu Zecong (Mandarin)Editorialist:Kevin...
View ArticleFNCS - Editorial
PROBLEM LINK:Author:Devendra AgarwalTester:Sergey KulikEditorialist:Florin ChiricaDIFFICULTY:medium-hardPREREQUISITES:sqrt decompositions, Fenwick Trees (or Interval Trees).PROBLEM:You're given an...
View ArticleApproach for problem GAMCOUNT
The problem link is: https://www.codechef.com/problems/GAMCOUNT Approach:As we know Henry gonna win every game in which possible number of all valid moves is odd. So we calculate total number of valid...
View ArticleURGENT- Find all sub arrays of a given array.
Hey guys, can you please help me out on this one? I need a code to find/print all possible sub-arrays for a given array (for quiz exam today). I searched google but I cannot get a relevant...
View ArticleANUBTG - Editorial
PROBLEM LINK:PracticeContestAuthor:Anudeep NekkantiTester:Minako KojimaEditorialist:Lalit KunduDIFFICULTY:EASYPRE-REQUISITES:Sorting, GreedyPROBLEM:You have to buy N items of cost A1, A2 ... AN. For...
View ArticleExternal rated contests doubt
I recently saw some external rated contests being hosted like https://www.codechef.com/ALKH2017 so I have the following doubts?Does it count in the 100% prize thing.If we don't register for prizes,...
View ArticleThe Samsung Challenge
Hello , Those of you who feel that they are good in competitive programming and are looking for a great or superb job , I am currently hiring smart candidates for my team. You will have to clear a...
View ArticleOnline Mobile development competition
We want to organize an online mobile development competition , we want codechef as our sponsor how can it help us.
View ArticleWill CooK80 be rated
There was a blunder mistake in test data of 3rd problem which costed hours of time debugging the code to many participants. So, my question is will it be rated??If this had happened on CF I am sure the...
View ArticleSCHEDULE - Editorial
PROBLEM LINK:PracticeContestAuthor:Hasan JaddouhTesters:Sergey Kulik, Kamil DębowskiEditorialist:Pawel KacprzakDIFFICULTY:EASYPREREQUISITES:Binary searchPROBLEM:For a binary string $A$, let's define a...
View Articlewhat is wrong with the logic?
problem:https://www.codechef.com/problems/IGNUS15B solution:https://www.codechef.com/viewsolution/13140865
View ArticleWhat kind of comment should I post on the problem page?
Is there any comment posting guideline? I am new on this website. I have so many doubts while I participate in a contest. Can I ask them on the problem page by posting a comment? Will I be banned for...
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