inbuilt functions
does codechef not support inbuilt functions like ltoa? i got a warning for that.
View ArticleONP i think my logic is correct.... bt not gettng submittd.....need help
#include<iostream> using namespace std; void push(char ch); char pop(); int top=-1; char infix[400]; char postfix[400],stack[400]; int p=-1; int priority(char symbol); int main() { int t;...
View ArticleC concepts
Hi, Can anybody tell me what is the advantage of using the below C concepts in embeddded systems (application wise) 1. pointers 2. Function pointers 3. structure 4. union 5. structure pointer 6....
View ArticleA small doubt in Binary indexed tree
Given an array, 1-D, how e have to kake the corresponding BIT for that? ex. if the array is 10 8 5 9 1 what will the BIT for this?
View Articlesegment tree with lazy update problem?
Hi, I am getting tle on this problem in UVA, http://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&page=show_problem&problem=2397 .. Here is my solution. I used segment tree...
View ArticleBIT ALGORITHM
if anyone can please explain Binary Indexed Tree algorithm because i've read Top Coder tutorial and didnt get it i think it was somehow hard ! if someone can give a detailed explanation . Thanks
View ArticleLOWSUM - Editorial
PROBLEM LINK:PracticeContestAuthor:Vineet PaliwalTester:Roman RubanenkoEditorialist:Jingbo ShangDIFFICULTY:EASYPREREQUISITES:Sort, Priority Queue, Binary SearchPROBLEM:Given two arrays A[1..K],...
View ArticleFacebook Interviewstreet Sample Question
I have been trying to work on the sample problem on Facebook's Interviewstreet page for quite a while. Here is the problem:-An Arithmetic Progression is defined as one in which there is a constant...
View ArticleCodechef Shirt
I heard that the top five contributers in Codechef Discuss get a t-shirt. How do these shirts look like? @kunal361,@kuruma?
View Articlecode is not getting submitted
When I press the submit button, it doesn't give any verdict.
View ArticleTime complexity of CUBE
@admin is the time limit too tight for the problem.My O(n^4) is getting a TLE.
View ArticleWhy I'm getting runtime error?
include <iostream>using namespace std;int factorial (int temp);int main() { int n,t; long long int q; cin>>t; while(t--) { cin>>n; for(int i=0;i<n;i++) cin="">>q; int...
View Articlebug on december challange
when i am on the december challange problems page:site said: "You are not authorized to access this page." but i am authorized? what is problem?
View ArticleGRAVEL : codechef problem
What is the difference between following two codes?? One gives WA bt other gives AC.. took so many wa's? just the diff. of cout and printf();...
View ArticleHOTEL-practice problem...what is my mistake??
include<iostream>using namespace std;int arrive[1000]; int leave[1000]; int main() {int test,n,max,count; cin>>test; while(test--) { max=0; cin>>n; for(int i=0;i<n;++i) {...
View ArticleConfusion regarding grading.
In December contest I got a tick mark but the time limit is 1 sec and my time shows 1.14 secs.I am confused regarding will I be graded for this?
View ArticleConfusion over scanf and getchar()
Well I was solving Buy1-Get1 from the practice problems(easy) and came across something strangeMy code would get accepted if i took the string input as follows and then did the neccessary...
View ArticleTREEROOT - Editorial
Problem LinkPracticeContestDifficultySIMPLE-EASYPre-requisitesSimple MathProblemYou are given partial information of a binary tree: for each node, its id, and the sum of the ids of its children. This...
View ArticleCode at boundary conditions
I am new to codechef.I am unable to solve problems in even the easy levels.There are always some runtime errors because i cannot allocate an data structure(array) with this much elements and so on.So...
View ArticleClik here to view.