Codeforces Global Round 15 | Problems A to F Video Editorial

[@gokulsaireddy8988]

So, basically B is based on Moore voting algorithm for finding better candidate??

[@AbhishekKumar-vo9yu]

It is one of the approach.

[@apoorvmehra121]

I was not able to implement 2nd question 😔

[@shivamthapliyal9554]

Legend is back

[@emurarryreddy476]

Wow thank you for these editorials they are creating cp culture....

[@vaibhavgupta7429]

wow ternary bitmask, learnt something new today

[@venkateshmishra3514]

Can someone explain me that implementation of problem D? I mean ternary bitmask part.

[@Muhammad_Kabil]

Thanks a lot bro.

[@govindtomar6284]

Please make editorials of atcoder contests, you're giving contests over there, so, please make editorials for those contests also.

[@sasmitshubham9424]

i was able to solve only one, again newbie.

[@ritikmehra500]

Same lol

[@deepansharya1111]

Did you solve it like he did using the rep() function from STL? If not then will you please paste your code here, I want to see how it can be solved without STL functions

[@kushagra4401]

@@deepansharya1111 int main(){ ios_base::sync_with_stdio(false); cin.tie(NULL); int T,i,n; cin>>T; while(T--){ string s,k; cin>>n>>s; k = s; sort(k.begin(),k.end()); int ans=0; for(i=0 ; i

[@kushagra4401]

@@deepansharya1111 rep is not a stl function ,its just for loop,he just created a macro for for loop so that he have to type less and save time its like this: #define rep(i,a,b) for(int i=a;i

[@deepansharya1111]

@@kushagra4401 OMG thank you so much i am able to understand it now :)

[@TechieIndia]

From where we can learn ternary bitmask as you have used it in D.

[@Munnu-hs6rk]

can we use powerset n*(2^n) algo for finding cycle like if bit is1 go with + and if bit is 0 go with - and if sum comes to be 0 then theres cycle

[@hoangnam1870]

Can you explain more in problem D why if there exists a cycle, the answer will be "YES"? I still miss it and have no idea to explain it

[@5590priyank]

thanks for this editorial. Just a small suggestion, lot of us want to jump to editorial as soon as contest ends, so would it be possible to start a live session on yt or twitch so that we don't have to wait for video to be recorded and all? Thanks :)

[@utkarshgupta9858]

yeah ik, but i had to have dinner also

[@b82tushar22]

@@utkarshgupta9858 So, Honest Answer :)

[@ani68]

How was you experience at Uber internship......😃😃😃😃😃

[@abhishekdutt3601]

I ueed a hash map to store the sum of scores and sort them for question B. What was your approach?

[@SuperTushar14]

What was scores? Do you mean rank?

[@victorreznov6678]

How tho? What if there are two players whose ranking are- 2 2 2 1 9 2 1 1 1 7 8 9 In this test case I think your logic will fail

[@suryatype]

I got the same idea for D que but i dont know how to implement graphs :(

[@gaurang_bansal]

What all apps you are having on task bar , specially last 2 ones?

[@prajwalingole1584]

PPO mila? 😳

[@pritamkumar5510]

bhaiya, I have tried to join your discord channel, but not able to join, it shows failled link, can you please reshare the link if possible, thanks

[@ganapatibiswas5858]

Problem B was good.

[@itz_me_imraan02]

Why don't you start some DSA courses too in this channel..it will be helpful for all.. 💜💓

[@kushagragarg779]

bhaiya, I think there is some buzz going on while you speak. Thanks for the video editorial btw.

[@itsmyshow7611]

C saved me from -100

[@Fictional_universe]

U use lipstick

[@adi_7861]

G 11th testcase 😥

[@amandeeprewani1041]

orz is back