Codeforces celebrates 10 years! We are pleased to announce the crowdfunding-campaign. Congratulate us by the link https://codeforces.com/10years. ×

hmehta's blog

By hmehta, history, 4 days ago, In English,

Hey All!

Topcoder SRM 778 is scheduled to start at 12:00 UTC -5, Feb 15, 2020. Registration is now open in the Web Arena or Applet and will close 5 minutes before the match begins.

Thanks to jy_25 for writing the problems. Also thanks to a.poorakhavan and misof for testing the problem set and coordinating the round.

This is the fifth SRM of Stage 2 of TCO20 Algorithm Tournament and TCO20 Regional Events Qualification

Stage 2 TCO20 Points Leaderboard | Topcoder Java Applet | Upcoming SRMs and MMs

Some Important Links

Match Results (To access match results, rating changes, challenges, failure test cases)
Problem Archive (Top access previous problems with their categories and success rates)
Problem Writing (To access everything related to problem writing at Topcoder)
Algorithm Rankings (To access Algorithm Rankings)
Editorials (To access recent Editorials)

Good luck to everyone!

Read more »

 
 
 
 
  • Vote: I like it
  • +16
  • Vote: I do not like it

By hmehta, history, 13 days ago, In English,

Topcoder MM 115 is now live. 

Problem: GraphReconstruction

Register Now!

TCO20 Eligible: Competing in Marathons can help you qualify for TCO20 Marathon Tournament Finals. Learn More.

Want to practice?
To understand what kind of problems do Marathon Matches have and to get the feel of a Topcoder Marathon Match you can visit the practice rooms and participate in the Marathon Matches previously hosted on Topcoder. 

Best of luck!!

Read more »

 
 
 
 
  • Vote: I like it
  • 0
  • Vote: I do not like it

By hmehta, history, 2 weeks ago, In English,

Hey All!

Topcoder SRM 777 is scheduled to start at 11:00 UTC -5, Feb 03, 2020. Registration is now open in the Web Arena or Applet and will close 5 minutes before the match begins.

Prizes — Top 2 members on the Div I leaderboard will be awarded $777 each.

Thanks to Witaliy for writing the problems. Also thanks to misof and lg5293 for testing the problem set and coordinating the round.

This is the fourth SRM of Stage 2 of TCO20 Algorithm Tournament and TCO20 Regional Events Qualification

Stage 2 TCO20 Points Leaderboard | Topcoder Java Applet | Upcoming SRMs and MMs

Update: Congratulations to the brothers! — neal and scott_wu for winning $777 each!

Some Important Links

Match Results (To access match results, rating changes, challenges, failure test cases)
Problem Archive (Top access previous problems with their categories and success rates)
Problem Writing (To access everything related to problem writing at Topcoder)
Algorithm Rankings (To access Algorithm Rankings)
Editorials (To access recent Editorials)

Good luck to everyone!

Read more »

 
 
 
 
  • Vote: I like it
  • +44
  • Vote: I do not like it

By hmehta, history, 4 weeks ago, In English,

Hey All!

Topcoder SRM 776 is scheduled to start at 07:00 UTC -5, Jan 25, 2020. Registration is now open in the Web Arena or Applet and will close 5 minutes before the match begins.

Thanks misof for writing the problems and coordinating the round.

This is the third SRM of Stage 2 of TCO20 Algorithm Tournament and TCO20 Regional Events Qualification

Stage 2 TCO20 Points Leaderboard | Topcoder Java Applet | Upcoming SRMs and MMs

Some Important Links

Match Results (To access match results, rating changes, challenges, failure test cases)
Problem Archive (Top access previous problems with their categories and success rates)
Problem Writing (To access everything related to problem writing at Topcoder)
Algorithm Rankings (To access Algorithm Rankings)
Editorials (To access recent Editorials)

Good luck to everyone!

Read more »

 
 
 
 
  • Vote: I like it
  • +51
  • Vote: I do not like it

By hmehta, history, 4 weeks ago, In English,

Topcoder MM 114 is scheduled to start at 21:00 UTC -5 on Jan 22, 2020. To find out what time this Marathon Match starts in your local time zone, click here

Register Now!

TCO20 Eligible: Competing in Marathons can help you qualify for TCO20 Marathon Tournament Finals. Learn More.

How to compete?
In order to compete in a Topcoder Marathon Match, you will need to click the Register button next to the appropriate Marathon Match within the Active Contests list and agree to the rules of the event.

Want to Practice?
To understand what kind of problems do Marathon Matches have and to get the feel of a Topcoder Marathon Match you can visit the practice rooms and participate in the Marathon Matches previously hosted on Topcoder. 

Best of luck!!

Read more »

 
 
 
 
  • Vote: I like it
  • +12
  • Vote: I do not like it

By hmehta, history, 5 weeks ago, In English,

Hey All!

Topcoder SRM 775 is scheduled to start at 11:00 UTC -5, Jan 16, 2020. Registration is now open in the Web Arena or Applet and will close 5 minutes before the match begins.

Thanks misof for writing the problems and coordinating the round.

This is the second SRM of Stage 2 of TCO20 Algorithm Tournament and TCO20 Regional Events Qualification

Stage 2 TCO20 Points Leaderboard | Topcoder Java Applet | Upcoming SRMs and MMs

Some Important Links

Match Results (To access match results, rating changes, challenges, failure test cases)
Problem Archive (Top access previous problems with their categories and success rates)
Problem Writing (To access everything related to problem writing at Topcoder)
Algorithm Rankings (To access Algorithm Rankings)
Editorials (To access recent Editorials)

Good luck to everyone!

Read more »

 
 
 
 
  • Vote: I like it
  • +27
  • Vote: I do not like it

By hmehta, history, 6 weeks ago, In English,

Hey All!

Topcoder SRM 774 is scheduled to start at 12:00 UTC -5, Jan 11, 2020. Registration is now open in the Web Arena or Applet and will close 5 minutes before the match begins.

Thanks to lg5293 and misof for writing the problems and coordinating the round.

This is the first SRM of Stage 2 of TCO20 Algorithm Tournament and TCO20 Regional Events Qualification

Stage 2 TCO20 Points Leaderboard | Topcoder Java Applet | Upcoming SRMs and MMs

Some Important Links

Match Results (To access match results, rating changes, challenges, failure test cases)
Problem Archive (Top access previous problems with their categories and success rates)
Problem Writing (To access everything related to problem writing at Topcoder)
Algorithm Rankings (To access Algorithm Rankings)
Editorials (To access recent Editorials)

Good luck to everyone!

Read more »

 
 
 
 
  • Vote: I like it
  • +43
  • Vote: I do not like it

By hmehta, history, 6 weeks ago, In English,

Hey Everyone! Below is the schedule of Topcoder Rounds scheduled for Jan-March 2020. These rounds will help you earn points for Stage 2 of TCO20 and also help qualify for TCO20 Regional Events.

Jan

SRMs

Marathon Match

Feb

SRMs

Marathon Match

March

SRMs

Marathon Match

Some Important Links

Match Results (To access match results, rating changes, challenges, failure test cases)
Problem Archive (Top access previous problems with their categories and success rates)
Problem Writing (To access everything related to problem writing at Topcoder)
Algorithm Rankings (To access Algorithm Rankings)
Editorials (To access recent Editorials)

Read more »

 
 
 
 
  • Vote: I like it
  • +58
  • Vote: I do not like it

By hmehta, history, 2 months ago, In English,

Hey All!

Topcoder SRM 773 is scheduled to start at 12:00 UTC -5, Dec 21, 2019. Registration is now open in the Web Arena or Applet and will close 5 minutes before the match begins.

Thanks to misof for writing the problems and coordinating the round.

This is the last SRM of Stage 1 of TCO20 Algorithm Tournament.

Stage 1 TCO20 Points Leaderboard | Topcoder Java Applet | Next SRM 774 — Jan 11, 12:00 UTC-5

Some Important Links

Match Results (To access match results, rating changes, challenges, failure test cases)
Problem Archive (Top access previous problems with their categories and success rates)
Problem Writing (To access everything related to problem writing at Topcoder)
Algorithm Rankings (To access Algorithm Rankings)
Editorials (To access recent Editorials)

Good luck to everyone!

Read more »

 
 
 
 
  • Vote: I like it
  • +14
  • Vote: I do not like it

By hmehta, history, 2 months ago, In English,

Topcoder MM 113 is scheduled to start at 21:00 UTC -5 on Dec 16, 2019. Register Now!

TCO20 Eligible: Competing in Marathons can help you qualify for TCO20 Marathon Tournament Finals. Learn More.

How to compete? In order to compete in a Topcoder Marathon Match, you will need to click the Register button next to the appropriate Marathon Match within the Active Contests list and agree to the rules of the event.

Want to Practice? To understand what kind of problems do Marathon Matches have and to get the feel of a Topcoder Marathon Match you can visit the practice rooms and participate in the Marathon Matches previously hosted on Topcoder.

Best of luck!

Read more »

 
 
 
 
  • Vote: I like it
  • +6
  • Vote: I do not like it

By hmehta, history, 2 months ago, In English,

Hey All!

Topcoder SRM 772 is scheduled to start at 07:00 UTC -5, Dec 11, 2019. Registration is now open in the Web Arena or Applet and will close 5 minutes before the match begins.

Thanks to abdullahkool768 and vivek1998299 for writing the problems for the round. Also thanks to misof and adamant for coordinating and testing the round.

This is the fifth SRM of Stage 1 of TCO20 Algorithm Tournament.

Stage 1 TCO20 Points Leaderboard | Topcoder Java Applet | Next SRM 773 — Dec 21, 12:00 UTC-5

Some Important Links

Match Results (To access match results, rating changes, challenges, failure test cases)
Problem Archive (Top access previous problems with their categories and success rates)
Problem Writing (To access everything related to problem writing at Topcoder)
Algorithm Rankings (To access Algorithm Rankings)
Editorials (To access recent Editorials)

Good luck to everyone!

Read more »

 
 
 
 
  • Vote: I like it
  • +38
  • Vote: I do not like it

By hmehta, history, 3 months ago, In English,

Hey All!

Topcoder SRM 771 is scheduled to start at 11:00 UTC -5, Nov 27, 2019. Registration will open 24 hours before the start time in the Web Arena or Applet and will close 5 minutes before the match begins.

Thanks to misof for writing the problems for the round

This is the fourth SRM of Stage 1 of TCO20 Algorithm Tournament.

Stage 1 TCO20 Points Leaderboard | Topcoder Java Applet | Next SRM 772 — Dec 11, 07:00 UTC-5

Some Important Links

Match Results (To access match results, rating changes, challenges, failure test cases)
Problem Archive (Top access previous problems with their categories and success rates)
Problem Writing (To access everything related to problem writing at Topcoder)
Algorithm Rankings (To access Algorithm Rankings)
Editorials (To access recent Editorials)

Good luck to everyone!

Read more »

 
 
 
 
  • Vote: I like it
  • +60
  • Vote: I do not like it

By hmehta, history, 4 months ago, In English,

Hey All!

Topcoder SRM 770 is scheduled to start at 12:00 UTC -4, Nov 2, 2019. Registration is now open for the SRM in the Web Arena or Applet and will close 5 minutes before the match begins.

Interested in working at Google? Well as a #TCO19 sponsor, they are looking to hire folks like you! Join us for SRM 770 to opt into their exciting job opportunities!

Thanks to jy_25, lazy_fox, idiot_owl and ashisha690 for writing the problems for the round. Also thanks to KaasanErinn and DuXSerbia for testing the problem set.

This is the third SRM of Stage 1 of TCO20 Algorithm Tournament.

Stage 1 TCO20 Points Leaderboard | Topcoder Java Applet | Next SRM 771 — Nov 27, 11:00 UTC-5

Some Important Links

Match Results (To access match results, rating changes, challenges, failure test cases)
Problem Archive (Top access previous problems with their categories and success rates)
Problem Writing (To access everything related to problem writing at Topcoder)
Algorithm Rankings (To access Algorithm Rankings)
Editorials (To access recent Editorials)

Good luck to everyone!

Read more »

 
 
 
 
  • Vote: I like it
  • +51
  • Vote: I do not like it

By hmehta, history, 4 months ago, In English,

Hey All!

Topcoder SRM 769 is scheduled to start at 07:00 UTC -4, Oct 19, 2019. Registration is now open for the SRM in the Web Arena or Applet and will close 5 minutes before the match begins.

Thanks to misof for writing the problems for the round. Also thanks to DuXSerbia for testing the problem set.

This is the second SRM of Stage 1 of TCO20 Algorithm Tournament.

Stage 1 TCO20 Points Leaderboard | Topcoder Java Applet | Next SRM 770 — Nov 2, 07:00 UTC-4

Some Important Links

Match Results (To access match results, rating changes, challenges, failure test cases)
Problem Archive (Top access previous problems with their categories and success rates)
Problem Writing (To access everything related to problem writing at Topcoder)
Algorithm Rankings (To access Algorithm Rankings)
Editorials (To access recent Editorials)

Good luck to everyone!

Read more »

 
 
 
 
  • Vote: I like it
  • +7
  • Vote: I do not like it

By hmehta, history, 4 months ago, In English,

Hey All!

UPD — Editorials https://www.topcoder.com/single-round-match-768-editorials/

Topcoder SRM 768 is scheduled to start at 11:00 UTC -4, Oct 10, 2019. Registration is now open for the SRM in the Web Arena or Applet and will close 5 minutes before the match begins.

Interested in working at Google? Well as a #TCO19 sponsor, they are looking to hire folks like you! Join us for SRM 768 to opt into their exciting job opportunities!

Thanks to Errichto for writing the problems for the round. Also thanks to xudyh and misof for testing the problem set.

This is the first SRM of Stage 1 of TCO20 Algorithm Tournament.

Stage 1 TCO20 Points Leaderboard | Topcoder Java Applet | Next SRM 769 — Oct 19, 07:00 UTC-4

Some Important Links

Match Results (To access match results, rating changes, challenges, failure test cases)
Problem Archive (Top access previous problems with their categories and success rates)
Problem Writing (To access everything related to problem writing at Topcoder)
Algorithm Rankings (To access Algorithm Rankings)
Editorials (To access recent Editorials)

Good luck to everyone!

Read more »

 
 
 
 
  • Vote: I like it
  • +94
  • Vote: I do not like it

By hmehta, history, 5 months ago, In English,

TCO19 Marathon Round 3 is now live: https://www.topcoder.com/challenges/30103195

Read more »

 
 
 
 
  • Vote: I like it
  • +10
  • Vote: I do not like it

By hmehta, history, 5 months ago, In English,

Hey All!

Topcoder SRM 767 is scheduled to start at 07:00 UTC -4, Sept 18, 2019.

Problem Writers: Arpa and minimario

Registration is now open for the match in the Web Arena or Applet and will close 5 minutes before the match begins.

Good luck to everyone!

Topcoder Java Applet | Next SRM 768 — Sponsored by Google — Oct 10

Some Important Links

Match Results (To access match results, rating changes, challenges, failure test cases)
Problem Archive (Top access previous problems with their categories and success rates)
Problem Writing (To access everything related to problem writing at Topcoder)
Algorithm Rankings (To access Algorithm Rankings)
Editorials (To access recent Editorials)

Read more »

 
 
 
 
  • Vote: I like it
  • +15
  • Vote: I do not like it

By hmehta, history, 5 months ago, In English,

Hey All!

Topcoder SRM 766 is scheduled to start at 21:00 UTC -4, Sept 10, 2019.

Problem Writer:misof

Registration is now open for the SRM in the Web Arena or Applet and will close 5 minutes before the match begins.

Good luck to everyone!

Topcoder Java Applet | Next SRM 767 — Sept 18

Some Important Links

Match Results (To access match results, rating changes, challenges, failure test cases)
Problem Archive (Top access previous problems with their categories and success rates)
Problem Writing (To access everything related to problem writing at Topcoder)
Algorithm Rankings (To access Algorithm Rankings)
Editorials (To access recent Editorials)

Read more »

 
 
 
 
  • Vote: I like it
  • +18
  • Vote: I do not like it

By hmehta, history, 6 months ago, In English,

Hey All!

Topcoder SRM 765 is scheduled to start at 11:00 UTC -4, August 23, 2019.

Problem Writer: misof

Registration is now open for the SRM in the Web Arena or Applet and will close 5 minutes before the match begins.

Good luck to everyone!

Topcoder Java Applet | Next SRM 766 — Sept 10

Some Important Links

Match Results (To access match results, rating changes, challenges, failure test cases)
Problem Archive (Top access previous problems with their categories and success rates)
Problem Writing (To access everything related to problem writing at Topcoder)
Algorithm Rankings (To access Algorithm Rankings)
Editorials (To access recent Editorials)

Read more »

 
 
 
 
  • Vote: I like it
  • +42
  • Vote: I do not like it

By hmehta, history, 6 months ago, In English,

Hey All!

TCO19 Algorithm WildCard and Parallel Rated Round are scheduled to start at 12:00 UTC -4, August 17, 2019.

Registration is now open for both the matches in the Web Arena or Applet and will close 5 minutes before the match begins.

Good luck to everyone!

Topcoder Java Applet | Next SRM 765 — August 23

Some Important Links

Match Results (To access match results, rating changes, challenges, failure test cases)
Problem Archive (Top access previous problems with their categories and success rates)
Problem Writing (To access everything related to problem writing at Topcoder)
Algorithm Rankings (To access Algorithm Rankings)
Editorials (To access recent Editorials)

Read more »

 
 
 
 
  • Vote: I like it
  • +38
  • Vote: I do not like it

By hmehta, history, 6 months ago, In English,

Hey All!

UPD: Editorials https://www.topcoder.com/blog/single-round-match-764-editorials/

Topcoder SRM 764 is scheduled to start at 12:00 UTC -4, August 10, 2019.

Please Note: This SRM will have a common problem set for both Div I and Div II. The difficulty level will be overall a bit easier than usual.

Registration is now open for the SRM in the Web Arena or Applet and will close 5 minutes before the match begins.

Good luck to everyone!

Topcoder Java Applet | Next SRM 765 — August 23

Some Important Links

Match Results (To access match results, rating changes, challenges, failure test cases)
Problem Archive (Top access previous problems with their categories and success rates)
Problem Writing (To access everything related to problem writing at Topcoder)
Algorithm Rankings (To access Algorithm Rankings)
Editorials (To access recent Editorials)

Read more »

 
 
 
 
  • Vote: I like it
  • +2
  • Vote: I do not like it

By hmehta, history, 7 months ago, In English,

TCO19 Tokyo Regionals Algorithm Parallel Rated Round is scheduled to start at 01:00 UTC -4 on Aug 3, 2019. Registration is open for the Round in the Arena or Applet and it closes 5 minutes before the match begins, so make sure that you are all ready to go.
Click here to see what time it starts in your area.

All the best! See you in the arena!

Read more »

 
 
 
 
  • Vote: I like it
  • +21
  • Vote: I do not like it

By hmehta, history, 7 months ago, In English,

TCO19 Algorithm Round 3B and Parallel Rated Round is scheduled to start at 21:00 UTC -4 on July 18, 2019. Registration is open for the Round in the Arena or Applet and it closes 5 minutes before the match begins, so make sure that you are all ready to go.
Click here to see what time it starts in your area.

Algorithm Round 3 Qualified Competitors (https://tco19.topcoder.com/algorithm/round-2a and https://tco19.topcoder.com/algorithm/round-2b) are eligible to compete in Round 3B. Those who have already qualified for Round 4 (https://tco19.topcoder.com/algorithm/round-4) from online stages and Round 3A (https://tco19.topcoder.com/algorithm/round-3) are not eligible to compete.

All contestants who will end up with a positive score will be awarded a TCO19 T-shirt. The t-shirt will be shipped after the TCO19 Finals to held in November.

All the best! See you in the arena!

Read more »

 
 
 
 
  • Vote: I like it
  • +27
  • Vote: I do not like it

By hmehta, history, 7 months ago, In English,

TCO19 Algorithm Round 3A and Parallel Rated Round is scheduled to start at 12:00 UTC -4 on July 6, 2019. Registration is open for the Round in the Arena or Applet and it closes 5 minutes before the match begins, so make sure that you are all ready to go.
Click here to see what time it starts in your area.

Algorithm Round 3 Qualified Competitors (https://tco19.topcoder.com/algorithm/round-2a and https://tco19.topcoder.com/algorithm/round-2b) are eligible to compete in Round 3A. Those who have already qualified for Round 4 (https://tco19.topcoder.com/algorithm/round-4) from online stages are not eligible to compete.

All contestants who will end up with a positive score in either of Round 3A or Round 3B will be awarded a TCO19 T-shirt. The t-shirt will be shipped after the TCO19 Finals to held in November.

All the best! See you in the arena!

Read more »

 
 
 
 
  • Vote: I like it
  • +68
  • Vote: I do not like it

By hmehta, history, 8 months ago, In English,

Hey All!

Topcoder SRM 762 is scheduled to start at 07:00 UTC -4, July 3, 2019. Registration is now open for the SRM in the Web Arena or Applet and will close 5 minutes before the match begins.

Thanks to teja349 and Errichto for writing and Vasyl[alphacom] for testing the problem set.

This is the fifth SRM of Stage 4 of TCO19 Algorithm.

Stage 4 TCO19 Points Leaderboard | Topcoder Java Applet | Next SRM 763 — July 17, 11:00 UTC-4

Good luck to everyone!

Read more »

 
 
 
 
  • Vote: I like it
  • +25
  • Vote: I do not like it