COMPILER - Editorial
PROBLEM LINK:PracticeContestAuthor:Bruno OliveiraTester:Sergey KulikEditorialist:Lalit KunduDIFFICULTY:EASY PREREQUISITES:AD-HOC PROBLEM:Given a bracket sequence, print the length of largest prefix...
View ArticleCHEFBM - Editorial
PROBLEM LINK:PracticeContestAuthor:Dmytro BerezinTester:Sergey KulikEditorialist:Lalit KunduDIFFICULTY:EASY PREREQUISITES:AD-HOC PROBLEM:There is a N * M matrix, where A[i][j] is j for all i,j. There...
View ArticleWA in RRSTONES may long challenge
I know it is an ongoing contest, so answer my question only after the contest gets over; I've tried solving RRSTONES considering all corner cases but still getting WA. Can anyone please tell me where I...
View ArticleRR Stone CONSTRAINTS
How to handle the CONSTRAINTS in Codechef?? I am solving RRSTONE problem, everything looks fine from my side like logic and all. but it is saying WA. DO we programmers need to take care that the...
View ArticleRRSTONE may long challenge help
I've tried solving RRSTONES considering all corner cases but still getting WA. Can anyone please tell me where I am going amiss. here is my code http://www.codechef.com/viewsolution/3855501
View ArticlePrime Palindrome HELP Part 2-Time Exceeded
Okay so the program is working, however I suppose it's too slow for the submissions liking. What would you do to make it faster? Use a class, inline functions, etc.include <cstdio>int...
View ArticleGetting WA in C++ but AC in Python.
Please dont suggest to check the algorithm carefully because, I know my solutions are correct since when implemented in python I got AC.But still unable to get AC for chef-jumping and rrstone in...
View ArticlePrime Palindrome HELP Part 3-Time Exceeded
I've optimized the prime function and its still exceeding the time limit? Any ideas? Solution located at : http://www.codechef.com/viewsolution/3901718
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TANGDIV - Editorial
PROBLEM LINK:PracticeContestAuthor:Ilya MalinovskyTester:Shiplu Hawlader and Mahbubul HasanEditorialist:Lalit KunduDIFFICULTY:EASY-MEDIUM PREREQUISITES:Ad-Hoc PROBLEM:Numbers 1 to N are written in...
View ArticleSEAGM Incorrect Submissions getting AC
While the output to the input:1 4 14 10 63 21 Should be:1 0.5833 In many of the AC answers it is:0 0.5833 Please add this case and rejudge.
View ArticleBinary tree structure in this case.
Imagine a binary tree lying on the floor with nodes as balls and edges as threads, you are given a pointer to a node. When you pick the tree from that node up what will be the structure of the tree....
View ArticlePractice programming
There are so many sites like Codechef , Topcoder , Codeforces , Spoj , Hackerrank , Hackerearth etc to practice coding questions . Which is better approach Start practising on all these sites ,...
View ArticleWhat's wrong with my code for ceil A-B problem ?
Hi, Here's the code for Ceil A-B probleminclude<stdio.h>int main() { unsigned long a=0; unsigned long b=0; scanf("%lu %lu", &a, &b); printf("%lu\n", (a-b)^1); return 0; }What's wrong with...
View ArticleName: special characters & unicode
Hi,I noticed that there is an issue with displaying names with special charaters like accents or c-cedilla (ç). However, there is an utf-8 charset used in the website, so the problem could be in the...
View ArticleApproving an institution : time to do it
Hi,I had registered my institution on my profile since the last lunchtime contest (in April) and it is not approved yet. So, my question is : how long does it take to do it ? In my case, it is not...
View ArticleQsort function in C
how does the qsort function work in Cqsort( s , n , sizeof(struct coord) , compare );how can one manipulate the compare function in qsort while sorting structure rather than a array like above and how...
View ArticleHow is rating computed in case of ties?
@admin: I am wondering how the rating for long contests is computed in case of ties. Specifically, I am interested in the case of the recently ended May 2014 long contest, where me and @aawisong where...
View ArticlePROSUM - Editorial
PROBLEM LINK:PracticeContestAuthor:Vivek HamirwasiaTester:Mahbubul HasanEditorialist:Jingbo ShangDIFFICULTY:CakewalkPREREQUISITES:Simple MathPROBLEM:Given a sequence of numbers A[1..N], find the number...
View ArticleMSTICK - Editorial
PROBLEM LINKSPracticeContestDIFFICULTYSIMPLEPREREQUISITESRange Minimum Query, Simple MathPROBLEMYou are given N matchsticks arranged in a straight line, with their rearends touching each other. You are...
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