### Dutzul's blog

By Dutzul, history, 4 years ago, ,

Hey there , i think this cf round overlaps with topcoder srm ;)

i just wanted to point it out , no hard feelings, just in case it can be re-scheduled.

• +95

By Dutzul, 5 years ago, ,

Hey there,

I am looking for help regarding the "Minimum vertex cover" of a bipartite graph.

A vertex cove of a graph is a set of vertices such that each edge of the graph is incident to at least one vertex of the set.

I know that its equal to the maximum matching , acording to Konig theorem .

I want to know how to find it (find the nodes) ;

I've seen some explanations on the internet but they all seem very hard to understand (a lot of mathematical notations, wich are bugging me ) .

All ive understood is that you somehow have to start from a maximum match , then apply some greedy algorithm wich i don't understand.

Can some1 explain it to me in an intuitive manner please :D

Thanks .

• +9

By Dutzul, 5 years ago, ,

Hello everyone , I am seeking help regarding interactive tasks (IOI-style alike).

I want to get used to this type of problems , but can't seem to find any website that supports interactive submisions.

Also sharing with me some nice interactive tasks that you know of would be of great help .

Thanks a lot!!!, All the best !!!

• +24

By Dutzul, 5 years ago, ,

Tomorow , 11 april TCO 2015 Round1A will take place ,

http://tco15.topcoder.com/algorithm/schedule/

time-date :

http://www.timeanddate.com/worldclock/fixedtime.html?msg=TCO15+Algorithm+Round+1A&iso=20150411T12&p1=98

good luck to all the participants !!!

ps : how do i register to it ? its the same like any regular srm?

• +45

By Dutzul, 5 years ago, ,

Hey there , does any1 know where i can get the test data for Chinese national Olympiad (NOI).

I've googled it but i don't seem to find any website with past NOI's or atleast some NOI's.

Thanks in advance; all the best :)

• +17

By Dutzul, 5 years ago, ,

Tomorow , 2 Feb. Topcoder srm 648 will take place

does anyone know what time it starts ?

ive looked on the event calendar but it usualy dosent show the right time (it dosent match with my country hour , or atleast i think that);

• +9

By Dutzul, 5 years ago, ,

Hey , my name is Dutzu ,I'm 17 and I am searching for a friendly group of people who want to simulate ACM-like contests . I'm not preparing for ACM , I'm just doing it for fun. I think working in team is more productive than training alone. I'm usualy free after 17:00 (Romania time) http://www.timeanddate.com/worldclock/fixedtime.html?iso=20140526T17&p1=2210 ,but I got no fixed schendule and also summer holiday is coming soon. My algorithmic level is alike my codeforces rating.

\$ Have a nice day !