C vs Go in FCTRL
I wrote basically the same code in both Go and C for FCTRL. C took 0.6s and Go took 6.4s!! How is this possible? does codechef do time go run file.go ?
View ArticleMOU1H - Editorial
PROBLEM LINKPracticeContestDIFFICULTYMEDIUMPREREQUISITESSuffix Array, LCP ArrayPROBLEMYou are given a sequence of heights. You wish to find the number of unique contiguous subsequences in heights, such...
View Articlegetting WA for fire escape routes FIRESC practice(easy)
please tell me... for what test case i am getting WA......http://www.codechef.com/viewsolution/2389557and also my program is taking too much time... explain me another way to optimize my program......
View ArticleSorting strings in C
I was trying to sort c-strings using qsort(). Below is the comp function.> int comp(const void *a,const void *b) > {const char **ia=(const char **)a; > const char **ib=(const char **)b; >...
View ArticleChanging bits-Hackerrank
Well I've been trying this question on www.hackerrank.com for the past 3-4 days but am still not getting the perfect score.The problem is that in my code http://ideone.com/kfql6T when I used unsigned...
View ArticleUnderstanding Trie and its applications
Hey folks. I was going through data structures and came across TRIE ( prefix tree ) (I don't know much about it except for the fact that it is used for fast searching of stings and used in auto...
View Articledelay in codechef long rating ??
More than 5 days have passed and still no update. why is it taking so long for rating to come out ???
View ArticlePROB - Editorial
PROBLEM LINKPracticeContestDIFFICULTYSIMPLEPREREQUISITESSimple MathPROBLEMYou are given 3 types of tickets.A tickets of type 1, the winning ticket B tickets of type 2, the losing ticket C tickets of...
View ArticleCan u help me why this one is giving runtime error but giving the correct...
#include<stdio.h> #include<stdlib.h> int cmpfunc (const void * a, const void * b) { return ( *(int*)a - *(int*)b ); } main() { int N,D; scanf("%d %d",&N,&D); int *L; L =...
View ArticleFARASA - Editorial
PROBLEM LINKPracticeContestDIFFICULTYHARDPREREQUISITESFast Fourier TransformPROBLEMYou are given an array of N positive integers. There are N+1C2 sub-arrays of this array. Find the number of unique...
View ArticleGALACTIK : getting WA
I am getting WA and I have even considered the case where all planets are connected to each other and the answer is zero for that. please help me. here the the link to my code.http://ideone.com/L5Cenu
View Articlegetting WA for GALACTIC.....
hi...i have checked my program for all the boundary conditions........ but still i am getting WA answer...please help me`http://www.codechef.com/viewsolution/2397593 THANKYOU....
View ArticleRIVPILE - Editorial
PROBLEM LINKPracticeContestDIFFICULTYMEDIUMPREREQUISITESShortest Path Problem, Dijkstra's AlgorithmPROBLEMYou are given N points in a plane. You are given M types of disks. Each disk has some cost...
View ArticleFor those getting WA for GALACTIK.....
check out the following test cases...8 6,1 2,2 3,4 5,5 6,6 7,7 4,1,2,-1,-1,-1,-1,-1,-1 ans=-16 5,1 2,4 5,5 6,6 3,3 1,1,2,3,4,5,6 ans=010 8,1 2,2 3,4 5,5 6,7 8,8 9,3 1,6 2,1,2,3,-1,-1,5,-1,-1,-1,2 ans=-1
View Articlefireescape WA
hey...guys...plzzzzzzzzzzzzzzzzzzzzz..........wht the hell i m gettng wrng ans..........#include<cstdio> #include<iostream> #include<list> #define M 10000007 using namespace std;...
View Articlefirescape route WA
lzz......guys help me out....whats wrong in my code eveytime gettting WA...though i have checked for a couple of test cases.#include<cstdio> #include<iostream> #include<list> #define...
View ArticleJava String Array output error
import java.util.*; import java.lang.*; class Employees { public void AddStaff() { for(int i=0;i<4;i++) { String s[]={new Scanner(System.in).next()}; } for(int i=0;i<4;i++) {...
View ArticleLife, the Universe, and Everything - Run Time Error
So the exercise is: Your program is to use the brute-force approach in order to find the Answer to Life, the Universe, and Everything. More precisely... rewrite small numbers from input to output. Stop...
View ArticleTAAPLUSB - Editorial
Problem Link:PracticeContestDifficulty:EasyPre-requisites:Linearity of Expectation, basic probabilityProblem:Find the expected number of carries when adding two numbers, each at most N digits...
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