Valentine's Coding Challenge By CodeClub JUSL Jadavpur University

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Hi Everyone,

This Tuesday, On The Auspicious Occasion Of Valentine's Day XD, We At CodeClub JUSL Are Going To Hold The Yearly Valentine's Coding Challenge Which Is Held Every Year.

However This Year, Something's Special. So First Of All Anyone From Any Educational Institution Can Take Part In This Challenge. Participation Is Entirely Free. And Also The Challenge Will Be Held In Two Phases.

Online Round(Platform Hackerrank)
Onsite Round(Only For The Top Participants)

The Online Round Will Be Held On Tuesday 14th February 2023 From 7 P.M Onwards And Will Last For 135 Minutes.

Finals Will Be Held Onsite At Jadavpur University, Salt Lake Campus. Further Communication Would Be Provided To The Top Participants Henceforth.

Contest Link https://www.hackerrank.com/valentines-coding-challenge-2023

Google Form Link: https://forms.gle/BMmVkf1w6z46pJzS7

Don't Forget To Register In The Google Form. Otherwise, Your Participation Would Be Invalid For Finals.

Problem Setters : XCoder_420 Jesture soujash_mandal Problem Testers : dddd2

Good Luck Everybody. Hope To See You On The Leaderboard :)

Update 1: Contest Is Postponed For Half An Hour. It Will Start At 7.30 PM.

Update 2: We'll announce the winners pretty soon after Plag check. Stay tuned :)

Results

Qualification Criteria For Onsite Final Round The Top 10 Participants Overall And Top 20 From JU(No Intersection B\W The Two) Qualify For The Onsite Rounds. You'll Be Notified Through Mail About The Final Round's Date And Time.

We Are Overwhelmed On Your Participation. Thanks, A Lot. It Takes A Lot Of Efforts To Organise A Contest. And I Can Say By Your Response, We Are Rewarded :) Congrats Everyone !!

Top 5 Participants

Комментарии (38)

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XCoder_420

21 месяц назад, # |

Auto comment: topic has been updated by XCoder_420 (previous revision, new revision, compare).

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18o3

There is no option for hackerrank id in the form? How will you decide whose id is which then?

21 месяц назад, # ^ |

Sorry, We Missed It. Updating It ASAP.

onebit1024

What is the expected difficulty of problems? Div3,div2?

Round 1 Will Be Comparatively Easier I Can Say. You Can Expect Questions Typically From 1200-1900 Range.

ZZ_ZZ

← Rev. 2 →

+14

[Deleted]

-8

Teach me your ways,senpai 🛐

Boring_Day

Be single

VON_Remember_Me

Please give an editorial for the problems.
In the id column of the google form, I have to give my username, right?

Excited for this!!

Exited for this!

Excited...

...Only For The Top Participants...

And, how many of us can possibly be top participants ?

Will update it soon.

RestlessPsycho

Here you are saying timing is 7pm and on hackerrank it is 7:30pm?

It has been updated before 7 pm only that the contest has been postponed by half an hour. Check the blog post Update section.

antiMathforces

+11

at least learn how to use latex before setting problems.

abhisheksharma6523

I think the last problem is copied from somewhere but i can't remember the source

bihariforces

https://cses.fi/problemset/task/1137

same technique I believe, DFS and store order of traversal then queries are just range updates and range queries.

the contest is still going on. Please refrain from commenting about the problems.

dhruva_shashi

New Year Tree. This was the copied problem. Exact same problem. No changes at all. Poorly organized

How many people will be selected for onsite round?

ExpensiveAC

I think the input format for problem 1 is incorrect, it isnt always the case as the problem described. (3 lines). I was getting awkward runtime errors in Python.

This gave RE on tests 0 to 19, AC on 20 (0 points)

n = int(input())
s1,s2 = input().split(" ")
m = int(input())

This gave RE on only test 0 and 20, and AC on tests 1 to 19 (47.5 points)

n = int(input())
s1 = input()
s2 = input()
m = int(input())

I might be wrong, but it seems like some tests have the 2 strings in the same line, while some have it on 2 separate lines, and maybe even more inconsistent formats.

WAtoAC2001

Liked the problems especially aarins-water-supply-strategy. Though the last problem could have been a better one.

aarins water supply is the same as this problem

+12

Oh, I wasn't aware of this one.

This is sad. 2 problems copied :(

True, that's unfortunate. The other problems were nice.

Amazing contest, loved it, specially the question of special characters(my first dp+bitmask problem).

ssd01

I tried a similar approach created a dp[1e5][32],could only pass 4 cases though. Is it possible to see submissions of other candidates?

I don't think you can see submissions of other candidates. As for the code, maybe you had some issue while returning the cost as that would fit in long long and not int. Try checking that.

faraz16iqbal

ssd01 My solution for reference https://pastebin.com/m5KKTvJL

-6

Genuinely sorry if you found some problem ideas to be copied. Yes, maybe we have taken some sort of already existing general ideas or algorithms to design the problems. We'll take care of it from the next time. Thanks a lot for the feedback though :)

MeetBrahmbhatt

The test cases were not following the constraints, in the problem "Father Monster Saves the Day" the constraints said <= 1e6 but in the input, the numbers were up to 1e9.

TestCase

I know the intended solution is independent of the constraints, but this should be looked after.

Thanks for pointing this out. We'll surely memoize this mistake and would take great care of it in future contests.

sahaagraz123

-11

bhavyakawatra

can anyone tell me the approach for this problem?

Father Monster Saves The Day!!

link : https://www.hackerrank.com/contests/valentines-coding-challenge-2023/challenges/father-monster-saves-the-day

Also XCoder_420 Please enable the settings so that I may read other people's submissions for the problem.

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