can anyone tell me error in my code?
question: LCH15JAB Problem - CodeChef
my code : CodeChef: Practical coding for everyone
Please upvote this comment. I want to get reputation points.
1 Like
Would it be possible for the author of CHEFNIL (or somebody else) to share the piece of code that is used to calculate the score of a solution?
I’m asking for this because I wrote a program which generates two possible solutions, computes the sum of points for both, and outputs the one with a larger sum. When I change the program to output just the first of those solutions (and ignore the second), the score of my submission goes up, and I can’t make sense of why this is happening.
I am new to codechef and i don’t know how to add constraints mostly given as sub-task2 in codechef problems i tried using the conditional statements but it is still showing sub-task-2 failed
some of my submission are:
problem link :CodeChef: Practical coding for everyone
solution :CodeChef: Practical coding for everyone
please find error in my code:
problem :CHEFSQ Problem - CodeChef
my code: CodeChef: Practical coding for everyone
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As both are coders platforms! Initially i started coding for the first time at codechef but was scared so someone suggested me solving on codeforces and i feel more comfortable there because you can see your failing test cases there.
I have a Question. If you are topmost coder of Codechef but you have 0 karmapoint then can you ask question or Not ? Is it fair to decide only according to karmapoints and not your rank and rating?
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plzz upvote me i want to ask questions!!
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When I run this Prime generator it works fine , but when i give range for prime’s as 1 to 10000000 it stops working and everything crashes !
I recently learned Sieve of Eratosthenes and is implementation of it.
Please help. I find this Karma system bad for newbies like me and would appreciate any help. Thanks in advance.
#include <iostream>
#include<stdio.h>
#include<bits/stdc++.h>
#define ll long long int
using namespace std;
int main()
{ ios::sync_with_stdio(false);
cin.tie(NULL);
int t;
scanf("%d",&t);
while(t--)
{
long long int m,n;
scanf("%lld %lld",&m,&n);
//Sieve
bool prime[n+1];
prime[0]=false;
prime[1]=false;
for(ll i=2;i<=n;i++)
prime[i] = true;
for(ll i=2; i*i<= n;i++)
{
if(prime[i])
{
for(ll j=i*2;j<=n;j+=i)
prime[j]=false;
}
}
// Printing
for(ll z=m;z<=n;z++)
{
if(prime[z])
printf("%lld\n",z);
}
}
return 0;
}Why are solutions of ZCO practice contest of other coders are visible??
Is it because it’s a practice contest??
can someone explain with an example the use of upper_bound() and lower_bound() functions(as used in solving binary search problems)??
While using Codechef IDE, I noticed a bug. If a line is selected and Ctrl + / is pressed then, in general for other languages (I checked for C, C++ 6.3, C++ 17, PYTH, PYTH 3.5) the lines get commented out. But for PYPY, just a // is put before the lines, which is definitely not commenting out in case of PYPY.
Can you please check this and inform @admin if it is truly a bug (in case she does not notice).
Thanks.