preorder traversal of binary tree
preorder traversal of binary tree in c using iterative solution with node having a parent pointer any link to source code of this problem
View ArticleDiscussing CodeChef's problem on other platforms?
The Long contest at codechef has been a success due to its challenging status but of late during the last 2 competitions , I found out that a lot of lot of people asked the questions as it is on...
View Articlehow to detect arrow key inputs in c without using getch of conio.h.
well i am trying to create a game in c which requires the use of arrow keys as input. the book where i came across this question gives a function definition that is required to detect arrow key inputs....
View ArticleWhy table may be outer joined to at most one other table ?
Here is a question which has been boggling me for few days now, and I searched and searched but couldn't find any convincing answer !Simple question, why is it restricted to have 2 Outer Joins in SQL,...
View Articlewhats the use of fflush function in c. when to use it and what does it do....
fflush function is something that i came across in a chapter on structures in c
View Articleatm getting wrong answer
Here, is my code and i am continuously getting wrong answer and cannot find the reason why.. Please help?import java.util.Scanner;public class Main { public static void main(String args[]) { Scanner...
View Articlenumber range
can anyone tell me how to deal with a number in range of -(10^9)^(10^9)<number<(10^9)^(10^9)..........
View ArticleWA for LEMOUSE
http://www.codechef.com/viewsolution/2276396. Can any body plz tell me why its giving WA.
View ArticleWA in WSTRING and DELISH
can someone tell me the case I am missing?http://www.codechef.com/viewsolution/2276497http://www.codechef.com/viewsolution/2276507
View ArticleMANYCHEF - Editorial
PROBLEM LINKSPracticeContestDIFFICULTYSIMPLEPREREQUISITESGreedyPROBLEMWe are given a string S. Each character of S is either a question mark ('?') or an uppercase letter ('A'-'Z'). Replace each...
View ArticleWhen does Long contest rank update take place?
As I understand the ranks updates once a competition is over. I solved two problems in June Challenge 2013. When will my rank be updated?
View ArticleSome changes I prefer could benefit the platform a lot .
Direct i has been providing excellent services and codechef is now undoubtedly one of the topmost platforms for sport coding competitions and good problem sets with people like Tourist, ACrush and...
View ArticleAny way to filter practice problems?
I was thinking whether there was any way to filter practice problems like Unsolved/Solved/All. That can help. In the beginning it won't matter but if I keep on practicing soon I might be missing problems.
View Articlenzec error
this is the code i submitted for wString of june challenge http://www.codechef.com/viewsolution/2276800 it gives me a runtime error can anyone point out the error? thanx in advance! :)
View ArticleRatings update for June 13 long contest .
@admin : When are the ratings likely to be updated ? I know you have cheating cases to solve . But just an idea when you might run the rating algo so that we can see our new ratings . Thanks in advance...
View ArticleWrong Answer after running for 1.14secs,what can be possible bug?
I am solving a question of June Challenge and my solution terminates with WA after running for 1.14 seconds. I am unable to debug it,everything seems okay. What can be a possible bug? Whether long...
View ArticleAcces Denied on problems page for june Contest
If I try to enter a problem page the following output "You are not authorized to access this page.I hope you'll fix this:).
View Articlenuke getting wrong answer
this is my code...i am continuously getting wrong answer .......please help me out #include<stdio.h> int main() { unsigned long A; int N,K,i,j; scanf("%d%d%d",&A,&N,&K); int x[100];...
View ArticleNeed help on how to start solving difficult questions
hello guys,i need some help on how to get more comfortable in solving good problems though i am not so new to coding but still i am unable to solve difficult problems. In each contest i manage to solve...
View ArticleCheating in June Long Contest 2013
Just want to bring it to the admin's notice. Problem - http://www.codechef.com/JUNE13/problems/SPMATRIX Following set of solutions by different users are same:...
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