COORDINATE GEOMETRY
Hey guys, i need help with coordinate geometry !! if anybody could suggest any good books or online tutorials i'd be very glad !! And could you please also suggest some good problems in co-ordinate...
View ArticleRUNTIME ERROR for UVA problem 10653
I am submitting my solution for this problem on the site but getting RUNTIME ERROR continuosly, I am unable to find problem in my code now, please check my codeThanks and regards
View ArticleEnormous Input Test in C++
How to define an array for this problem to store and check big numbers.
View Articlenegative index of array
hi guys can you explain what the meaning of negative index. i read someone code and don't understand because there like these:arr1[-1]='0'; so i search on net still i don't find an answer.thx for answer.
View Articlehash table
can any one please suggest me some question in codechef based hash table and hash function implementation
View ArticleUse long long or int??
I recently submitted problem NUMGAME from easy practice question. http://www.codechef.com/problems/NUMGAMEI submitted the answer but by mistake I took n of integer type and not long long which it must...
View ArticleUnable to understand the compilation error here.
I have the following submission in scala for one of the practise questions at http://www.codechef.com/problems/INTEST/ and I keep getting compilation error. I compared it with other submissions and I...
View ArticleSPOJ BITMAP. NZEC in JAVA.
here is the problem: http://www.spoj.com/problems/BITMAP/I'm not using any graph traversal techniques to solve this one like bfs/dfs. My procedure: I'm using a separate matrix that stores the distances...
View ArticleLongest Regular Bracket Sequence
http://codeforces.com/problemset/problem/5/CDidn't understood the meaning of:"a bracket sequence is called regular, if by inserting «+» and «1» into it we can get a correct mathematical expression."In...
View ArticleSeparate final test cases for Challenge Question.
@admin , @everyone : I believe final test cases for Challenge Question should be different from those used during the contest . The practice of making hundred's and thousand's of submission's to...
View ArticleHow to avoid printing -0.000?
Sometimes in a problem we are asked to print our values correct to 3 decimal places. Simply printing 3 d.p using printf ( "%.3lf\n", variable ) wrongly prints -0.000 sometimes. For example:printf (...
View ArticleBYTECODE Editorials- Magic Sticks
Here is a link to my editorial on Magic Sticks problem asked in BYTECODE 2013. Critics are more than welcome.
View ArticleProblem: Holes ; Below is the code I am trying to execute but the compiler...
#include<iostream> #include<string.h> using namespace std; int main() { int i,test,length; int count =0; char a[100]; cin>>test; while(test--) { cin>>a; length=strlen(a);...
View Articleabout datatype
main() {float a=3.7; if (a==3.7) cout<<"true"; else cout<<"false"; } my output is false ,why ? give any solid explaination for it.
View ArticleDivision of problems by difficulty level
When the editorials are published there are 5 kind of divisions for difficulty level : 1. Cakewalk 2. Simple 3. Easy 4. Medium 5. Hard However , when the problems move to practice section the first...
View ArticleROUTES - Editorial
Problem Link:PracticeContestDifficulty:Medium-HardPre-requisites:Biconnected ComponentsProblem:Maintain the sum of biconnected components' sizes squares during adding the edges in the...
View ArticlePuzzle for interview
there is an infinite line.you are standing at a particular point you can either move 1 step forward or 1 step backward.you have to search for an object in that infinite line.your object can be in any...
View ArticlePerl Problem
How would i subtract first column of file1 to first column of file 2 where both the files are multi columnar ... help asap!
View ArticleDifference caused in run time by scanf/printf when used in place of cout/cin
I just want to know whether using scanf/printf instead of cout/cin can cause significant difference in the run time?I was solving a question CHMOD, and was getting TLE when I used cout/cin. But when I...
View Articleperl turbo sort
Hey everyone, I was trying to do the turbo sort challenge with perl and I am having a hard time splitting it. Here is what I have so far: my @numbers = <>; chomp(@numbers); my @sorted = sort {$a...
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