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Count of maximum

why is the following showing wrong answer on codechef though it gives the correct answer for the test cases provided and several other cases that i fed into the program. Here is the...

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Cake Walk

Can you guys help me in calculating this -(x^y)%cwhere 1<=x,y<=10000000001<=c<=1000000000I think it is just cakewalk for u guys :P

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runtime error

How to resolve the segmentation fault runtime error? I am getting it again and again despite making changes to my code. This in reference to the last question of the practice problems....

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bytelandian coins runtym error...help

include<iostream>using namespace std;int coin[500000000];int main() { long long int n,a,b,c; long long int d; coin[1]=1; coin[0]=0; cin>>n; if (n<=500000000) { for(int i=2;i<=n;++i) {...

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Generating Test Cases

I want to set a problem(its my first time), but I have no idea to generate test cases and what a Test Generation Plan is? I would like to learn it in detail ( While answering, please remember that its...

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wa in galactik football

getting WA constantly.here my code http://www.codechef.com/viewsolution/3265861

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Just an idea on faster publication of editorials

Just saying...if the authors of the problems on long/short contests submit an explanation along with the problems there wouldn't be any delays. It'd be great if their explanation included the following...

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Why wrong answer for Transform the Expression problem?

Here is my code for Transform the Expression problem :-#include<stdio.h> #include<stdlib.h> int prior(char ch) { if(ch == '+') { return 1; } else if(ch == '-') { return 2; } else if(ch ==...

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Wrong answer in LEBOMBS

#include<stdio.h> #include<string.h> int n,i,t,count; char s[10056]; int main() { scanf("%d",&t); while(t--) { scanf("%d",&n); scanf("%s",s); getchar(); count=0; for(i=0;i<n;i++)...

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PREPARE - Editorial

PROBLEM LINKSPracticeContestDIFFICULTYMEDIUMEXPLANATIONPerhaps the simplest approach is to use binary search problem coupled with a dynamic programming subroutine. Given a value T, we can determine if...

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why wrong answer of factorial ?

check my code at http://www.codechef.com/viewsolution/3266056 Of the problem http://www.codechef.com/problems/FCTRL2

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password protection code

in output,it is telling invalid password even though i hav entered right password(helloINDIA).#include <stdio.h> #include<string.h> #include<conio.h> void main() { char...

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Wrong answer in HelpingLira problem

http://www.codechef.com/viewsolution/3267094 please help!! thanks in advance

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CNTDSETS - Editorial

PROBLEM LINK:PracticeContestAuthor:Mugurel Ionut AndreicaTester:MahbubEditorialist:Jingbo ShangDIFFICULTY:HardPREREQUISITES:Combination, Inclusion–exclusion principle, Euler's theoremPROBLEM:Find out...

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ATOMS - Editorial

PROBLEM LINKSPracticeContestDIFFICULTYEASYEXPLANATIONFirst, say that two items x and y are "related" if there is no subset S _ i with one of x,y in S _ i but not the other. That is, x and y may appear...

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BUY1GET1 - WA

It seems like an easy problem. But somehow, I am getting a WA. I can't seem to figure out why. Please have a look A description of my algorithm - Made two arrays A[26] and a[26] for storing the count...

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REGARDING RATING

This user had participated in the JAN14 long contest, The graph below shows the increase in rating but it still remains zero in the upper right side of the profile.Is it because of the new rating...

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AND - Editorial

Problem Link:PracticeContestDifficulty:SimplePre-requisites:Binary Notation, Binary AND operationProblem:You are given a sequence of N integer numbers A. Calculate the sum of A[i] AND A[j] for all the...

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Problem of string in C lang.

its a program to copy a string in another string.the program is running properly but it is giving a wrong output for special characters. can u help me.???#include<stdio.h> #include<conio.h>...

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HELPLIRA - Editorial

PROBLEM LINK:PracticeContestAuthor:Bruno OliveiraTester:Jingbo ShangEditorialist:Ajay K. VermaDIFFICULTY:CAKEWALK PREREQUISITES:High school mathsPROBLEM:Given a set of triangles, find the indices of...

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