Windows.h for C++
When I code I always use windows.h for system("pause"), but when I upload my code to this site it always gives me a compile error. What did I do wrong?
View ArticleCOOKFOOD - Editorial
PROBLEM LINKSPracticeContestDIFFICULTYSimplePRE-REQUISITESRecurrences, Simple MathProblem:Chef is cooking two dishes, each one takes N processes to be prepared. Chef has K equipments which allow for K...
View ArticleMath formula derivation help?? (COOKFOOD)
Can someone explain the math with an example on how (K-2)^2 + K-1 choices are derived?? This question is tagged as simple math but I'm not fully able to wrap the math part though i understand it in...
View ArticleAMIFIB - Editorial
PROBLEM LINK:PracticeContestAuthor:Vineet PaliwalTester:Roman RubanenkoEditorialist:Jingbo ShangDIFFICULTY:EasyPREREQUISITES:Fibonacci Property, Quick Sort, Offline Algorithm, Hash, Binary...
View ArticleHandling large integers in C++???
While going through some successful submissions of Am I Fibonacci Number in COOK40, I have seen that some of them just use unsigned long long to store digits of the form of 1000 digits and still...
View ArticleQMARKS - Editorial
Problem Link:PracticeContestDifficulty:Easy-MediumPre-requisites:Aho-Corasick, DPExplanation:In order to pass the first sub task it's sufficient to implement exponential-time brute force solution. In...
View ArticleWhat's happening on codechef ?
In today's lunchtime contest , the site got offline for 10-15 minute . I click on poster of november cook-off on home-page , then october challenge pops up . I tried to open the today's lunch question,...
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LMA1 - Editorial
Problem Link:PracticeContestDifficulty:EasyPre-requisites:Basic mathExplanation:Sub task 1:In this subtask the summands will decrease very fast because a is actually small, so it's enough just to...
View ArticlePython 3.3 NZEC (Pairwise AND Sum)
import math import sys n = 1 cases = 0 num = 0 arr = [0 for i in range(0,30)] ans = 0 #print('Enter the test cases') cases = int(input()) while cases: num = int(input()) for i in range(0,30): if num %...
View ArticlePALINDR - Editorial
Problem Link:PracticeContestDifficulty:Easy-MediumPre-requisites:Treap, CombinatoricsExplanation:The constraints in the first sub task are very small, so a simple brute force will be enough in order to...
View ArticleNUMBERS - Editorial
Problem Link:PracticeContestDifficulty:CakeWalkPre-requisites:SortingExplanation:Sub tasks 1, 2, 3:The constraints in these subtasks are designed in such a way that it is possible just to check every...
View ArticleNovember challenge
When will the winners blog get updated . As codechef has taken quite a bit of time to update ratings and now they are delaying in updating the blogs .. Is it for this time or will it be the case for...
View ArticleProblem with Lowest Sums
Hello, I am getting an NZEC error when submitting my solution to the Lowest Sums problem under the easy category for the practice problems and I cannot understand why. Using both Visual Studio and...
View Articleprogramming contests
i think all the enthusiatic codechef users should have a look in this site,to know about various programming contests:->http://cplus.about.com/od/glossary/a/ten-contests.htm
View ArticleWhy dont we have a % of correctness in a question as in hackerrank?
We can find that available in TC and CF?I know that is not a must do stuff.But that would be nice to watch it.Secondly it would be nice to see how many test cases have failed as in hacker rank.I mean...
View Articlewhat is ioi style grading??
I am trying to solve problems from past ico's in ICO online judge.i solved a problem(NEXTPERM). After submission the solution was accepted but i scored only 20 out of 100.The judge is showing that my...
View Articlewhat is the runtime error in this solution for the question titled "factorial"?
include<iostream>using namespace std; void func(long int n) { long int sum=0; while(n) { n/=5; sum+=n; } cout<<sum<<"\\n"; }="" int="" main()="" {="" long="" int="" arr[100];=""...
View ArticleDiscrepancies in the Voters List- SIGSEGV error!! Please help
Discrepancies in the Voters List: link textCan any body please tell me why am I getting SIGSEGV error in this code: link textThe code runs absolutely fine on ideone: link textI've checked my code...
View ArticleWhat is real difference between stack memory and heap memory?
I have heard of this stack and heap during my computer classes during the study of recursive functions and all.I have just reached my 2nd year...But i would like to know what is this stack and heap.Can...
View ArticleCode does not run!
Hi guys, The last 3 or 4 programs that i tried submitting from the easy practice questions, run fine on mt machine (in Dev C++), but there is some or the other error when i try submitting it. It just...
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