Hey Vichitr I have registered on behalf my Team but one my Teammates has not received any invite mail yet , although there is showing invited Besides his id. This happens Every time to him . Any way to get out of this ?

Please try now. The site was down for some time.

You can ask on CF or telegram channel. Its mentioned in contest info page. You can also ask on discuss page. We do look and answer on all places.

You can always ask queries on CodeDrills discuss or message moderators on https://discuss.codedrills.io/g/moderators

For horse and barns problem: for your doubt, the number of ways of choosing k cells such that a particular cell is chosen is $$$\binom{N*M - 1}{K -1}$$$(check here to know about combinations) because we have the choice of choosing $$$K-1$$$ cells from $$$N*M-1$$$ cells. But it is not of much relevance here because we don't know if the particular cell we have chosen is the one with maximum distance.

To make sure that the particular cell we have chosen is the maximum distance we restrict our choices only to those cells whose distance is are less than or equal to the one we chose and choose $$$K-1$$$ among those. That is what I have done in the editorial. There are other ways of counting the same thing.

Alibaba and Thieves: The idea is to iterate over the sorted list of time intervals in the increasing order of <end time,start time> and assign the earliest available time slot to steal the coin from the current range, if the earliest available slot is outside the current time range skip stealing from that box.

You can check setter's code and tester's code for implementation.

I don't know if this is the code you submitted, so many errors I see. There can be small mistakes here and there. Can you paste your complete code?

if m=0 answer should be NO you are printing MAYBE ig.

You can sort the boxes array with increasing order of ending time and then greedily pick the boxes going from 1 to n by keeping track of the previous ending time and just adding the box if the previous ending time is strictly less than current starting time.

Editorial is published now.

I think it will fail on this:

1
3
11 11
11 13
12 12

You should first take the 1st coin, then the 3rd and then the 2nd, but by sorting <start time,end time> this way you will take only 1st and 2nd.

Hey, scaling down the server. It should take around 5 minutes.

Edit: Its up now.

Site is up now.

Yes we are planning to fix it by assigning alphabets. Sorry for the confusion.

1. UI/UX — We got a lot of feedback saying the UI/UX is good. Let us know if anything in particular is painful, we will fix it. Those who have given constructive feedback to us in the past would know that we take it seriously and fix it quickly.
2. Basic judge features -> such as? The site has all the basic features needed for a competitive coding contest. There are several more enhancements to the judge that would be good to have and we would be working on adding those but all basic features are present
3. "is CodeDrills prepared for such bumps" -> We have hosted a lot of contests in the past year and have good experience handling any issues that come up. There were issues and we have resolved them during contest too — many of them so smoothly that users didn't even notice the bumps.
4. Also CodeDrills was started in Aug 2019, and code-drills has been present for the last 4-5 years. It was not specifically started for ICPC if that's what you are trying to imply
5. It's not the first time that a new judge has been used. E.g. they used Code Marshall for the Asia West Finals. Amrita also has held regionals on lots of new platforms over the years and it is still the most prestigious regionals in India. Experimentations and flexibility are important reasons why that is so.

Regarding your "Possible answers" which are basically just conspiracy theories :)

• I am an IIT Bombay graduate, and so is Balajiganapathi. Vichitr is NITK surathkal graduate. So this is just plain wrong. The setting team has a lot of setters from different colleges, including Amrita (The contests are organized by Amrita college, is it really surprising that their graduates would be involved in setting problems?)
• Yes we are getting new users on CodeDrills but we already had a decent amount of users. Users didn't increase magically when Amrita announced ICPC would hosted on CodeDrills. It increased gradually with good contest rounds. There is just a bias but it's not completely true. We hold other types of contests too other than ICPC or competitive coding.

Hey brother/sister,

I think deepa_panwar has answered most of your questions and weird/false assumptions also. I dont have to say anything further there. Just adding few points here:

1. As you can see Deepa has said how open CodeDrills is to constructive criticism and i have first hand seen how seriously those feedbacks are taken. Ex: Even before you said about the numbering of the problem, we already discussed about it yesterday and have decided the fix for it.

2. You are plainly comparing CodeDrills with CF and CC which is fine but you have directly ignored the fact that both the sites have been there for more than a decade.

3. This is a personal opinion here. If you really think that the things that you have mentioned are a problem that needs to addressed. It would be much more convincing if it came from a real person and not from a fake account created just hours ago just for this purpose. Have some guts bro/sis if you are right then no one can do anything to you.

Hello 200ok,

This is Maheshwara Chaitanya, RCD at Amrita for hosting ICPC. I have been organising this contest since 2007 when the participating number was 100-150 teams. Now it has been 3000+ and we are the world's largest ICPC site in terms of participation. I am not a crackpot to host a prestigious contest using a programme created by my own student. Also cautious while choosing a contest platform. Since you haven't mentioned any identity here, your post itself looks suspicious and without any base. I have been using at least 5 platforms in the last 13 years for hosting contests. If you have any constructive feedback, it would look genuine if you could prove yourself as a coder, your credentials openly and then criticise. I would also urge to read out the history of ICPC before posting such kind of comments in a platform like this.

Have DM'ed you for more details about the issue.

For prizes, we will run plagarism checks first then share the final winner list with Amrita by next week. They will contact the winners.

Hi, it should be visible now. If still not, let us know.

1. You can search for your team name on the search box. We are looking into how to make it easier by just displaying team rank on the top.
2. We currently don't add the search term/page to the url so back won't work. You can ctrl-click to open any links in the new tab for now.

This was such a greedy problem! Setters and testers hand made test cases to fail 10+ greedies. Somehow this case was missed. Few more test cases has been added to the practice problem.

Hi, this is always tried to avoid. Though sometimes it might be the case that its existing. Point taken. Hopefully no existing problem appears again.

On the queue part, we are more cautious than you. We also strive to become a better platform. We would obviously load test with more load than what we are expecting. Ramping up the servers is a quick job for us. This shouldn't be an issue hopefully.

a lot of my seniors gave up on this year icpc, just because of the pathetic management from icpc coordinators, i hope they know we also have things like placements, internships final exam, i don't know whats taking them so long, we can't just sit here waiting for icpc.

at this rate this year icpc will coincide with next year icpc

anandoham

Typical indian stuff... Delayed, Denied, Injustice

but seriously wtf im thinking about those who are working somewhere now, how will they give icpc now, sitting from their cubicle lmao

Hey dude, prize money is taken care by Amrita. For any queries regarding prizes, please reach out to [email protected]

As far as I know, it would take few months to process it.

I think that's the date for Regional, not preliminary

No one from Amrita Uni seems to even reply, the mail they give is just a gimmick there is no one even checking the mails

Yes, please confirm the date(s) of the Online Round (as well as regional, if the dates are announced)