input in python
How can we input data in python like that of ideone. like i have input stored in file and i want to give whole input at once through stdin.
View ArticleMARCHA1 i'm getting wrong answer ?
question link please provide a test case for which my code is failing.my solution:
View ArticleATM showing wrong answer in C++
#include<iostream> #include<iomanip> using namespace std; int main() { int X; double Y; cout<<X<<" "<<fixed<<setprecision(2)<<Y<<endl; if(0<X<=2000...
View ArticleGERALD05 - Editorial
PROBLEM LINK:PracticeContestAuthor:Gerald AgapovTester:Tasnim Imran SunnyEditorialist:Jingbo ShangDIFFICULTY:MediumPREREQUISITES:Dynamic Programming, CombinatoricsPROBLEM:Given a lot of objects,...
View ArticleTLE in PRETNUM
can someone suggest optimizations to avoid TLE...http://www.codechef.com/problems/PRETNUMI am finding all primes using sieve then finding number of divisors of each number and then checking whether it...
View ArticleUnable to submit solution for MONEY Matter Problem..!!
I tried to submit the solution for Money Matters problem . I'm getting this message from online judge . "Solutions to this problem cannot currently be submitted in this contest." Admin please help me...
View ArticleCollege wise Codechef ratings- please see this site
Guys please check out this awesome site. You can add your code chef username and it will display rankings of users from your college. Please add your college if it is not present and then add usernames...
View Articlesigsegv error.
// program for codechef UNCLE JOHNY #include <stdio.h> int main() { int t,pos,i,ujp,j; unsigned long int n; int arr[n]; int high=n,low=0,mid; scanf("%d",&t); while (t) { scanf (...
View ArticleApproach to become Good Programmer.
I really want to know that whats the ideal approach for becoming a good programmer? Whats the secret to solve the Codechef questions? Any External links, online tutorials, e-books are welcome. ANY help...
View ArticleProblem code: FCTRL Factorial
why is it showing wrong answer?include<iostream>using namespace std; int main() { int count,div,i,t; long long int n; cin>>t; while(t>0) {div=5; count=0; cin>>n;...
View Articlesorting of structure
struct contestant {int prob,time; bool operator < (const struct contestant &c ) const { if( this->prob > c.prob ) return 1; else if( this->prob == c.prob) { if( this->time <=...
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QTREE6 - Editorial
PROBLEM LINK:PracticeContestAuthor:Minako KojimaTester:Gerald AgapovEditorialist:Jingbo ShangDIFFICULTY:HardPREREQUISITES:Link Cut Tree, Heavy-Light DecompositionPROBLEM:Given a 0/1 colored tree of N...
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REALSET - Editorial
PROBLEM LINK:PracticeContestAuthor:Iaroslav TverdokhlibTester:MahbubEditorialist:Jingbo ShangDIFFICULTY:HardPREREQUISITES:Circulant MatrixPROBLEM:Given a Circulant Matrix, determine whether it is full...
View ArticleMemory foot-print of code
The problem in question is DECSTR. My solution gives a memory usage of 2.2M. In order to find out how to reduce the mem usage to 1.6M, I looked into some other top solutions but found them almost...
View ArticleACM ICPC onsite problems
@admin im wandering if the the replay of the ACM ICPC onsite regionals of kharagpur and amritapuri will be conducted on codechef as the problems are became public.if no replay will be conducted at...
View ArticleRed black tree implementation in c++
Hi guys,Could any one point me to a good,simple implementation of red-black trees in c++ , which i can use in competitive coding as a general balanced binary tree. I am not particularly looking for...
View ArticleSOCIAL - Editorial
PROBLEM LINKSPracticeContestDIFFICULTYMEDIUMEXPLANATIONThe chef chooses a random derangement of the chairs as the follow-ups. If we focus our attention on a single guest, that guest will be back in...
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J7 - The Best Box guidance
http://www.codechef.com/problems/J7 codechef J7 - "the best box" guidance: - to get optimal maximum size: (special thanks to falcon - Sahin Mammadov) suppose we have 2 functions "a" & "b". function...
View ArticleWA in SPOJ-BOTTOM
In the question http://www.spoj.com/problems/BOTTOM/ i am regularly getting a wrong answer. I am trying to modify Targans Algorithm for Connected Components. This is my code http://ideone.com/Qe6BmJ My...
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