hmehta's blog

By hmehta, history, 25 hours ago, In English

Update: Regrettably, due to some unforeseen circumstances, today's round has been cancelled. We will see you all on Dec 4 @ 11:00 UTC-5 for the next SRM. (The next SRMs in the calendar will just be renumbered, so SRM 794 will take place when SRM 795 was previously scheduled.) Sorry if you already made time and looked forward to the contest. Please join us for the next one!

Topcoder SRM 794 is scheduled to start at 11:00 UTC-5 on December 4, 2020.

Registration is now open for the SRM in the Arena or Applet and closes at 10:55 UTC-5. The coding phase will start at 11:05 UTC-5, so make sure that you are all ready to go. Click here to what time it starts in your area.

Learn more about problem writing and testing opportunities.

Choose Your Competition Arena

There are two ways to compete in Algorithm Competitions or Single Round Matches (SRMs). Read here to find which works best for you.

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)

Learn more about problem writing and testing opportunities.

Best of luck!
- the Topcoder Team

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By hmehta, history, 8 days ago, In English

Topcoder is almost 20 years old now. Over these years we have had many great competitors/competitive programmers. Always wanted to know where they are now? — Join us as we bring the stories of some of the greatest we have had.

Starts in 1:15 hr

Join us on Hopin to Chat with the greats: https://hopin.to/events/topcoder-tco20-thurs-nov19

It will also be streamed on

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By hmehta, history, 9 days ago, In English

TCO20 Special Rookie SRM 1

TCO20 Special Rookie SRM 1 as part of the 2020 Topcoder Open is scheduled to start at 13:00 UTC-5 on November 18, 2020

Registration is now open for the Rookie SRM in the Arena or Applet and closes at 12:55 UTC-5. The coding phase will start at 13:00 UTC-5, so make sure that you are all ready to go. Click here to what time it starts in your area.

The Rookie SRM is open to everyone and has some special cash prizes. It will only be rated for members who:
- Have never competed in Rated Algorithm Contests OR
- Have competed in equal to or less than 5 rounds OR
- If their current rating is less than 800 rating points.

Prizes:
1st: $300
2nd: $200
3rd: $100
$25 for 5 other random participants
Topcoder T-shirt for Top 30
*All prizes are only for members who are eligible to be rated

Choose Your Competition Arena

There are two ways to compete in Algorithm Competitions or Single Round Matches (SRMs). Read here to find which works best for you.

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)

Learn more about problem writing and testing opportunities.

Best of luck!
- the Topcoder Team

UPD Thanks to everyone who competed! Please find the editorials here. Congratulations to the all the winners:

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By hmehta, history, 2 weeks ago, In English

Hi Everyone,

TCO20 Algorithm Finals – the most awaited Topcoder tournament of the year is almost here. Will tourist reign supreme or does someone else in the group have what it takes?

16 top-rated members will be competing in the next few weeks for the ultimate title of Topcoder Open. 

Here’s how the semifinal rounds look: 

Semi-Final 1 Group

Semi-Final 2 Group

Live Broadcast

TCO20 Algorithm Rounds will be broadcasted live and you’ll be able to listen to the amazing hosts Errichto and Lewin during the contest as they will explain the problems, do live commentary, and show you the competitors’ screens. They will be joined by some amazing guest competitors on each broadcast and also there are some exciting post match interviews planned too.

Find the full schedule with all the details and signup links to the event here

TCO20 Special Rookie SRM with Prizes

If you are new to Topcoder, we are also organising an interesting educational beginner contest with prizes after Semifinal 2:

TCO20 Special Rookie SRM

Wednesday, November 18, 2020 13:00 UTC-5

The Rookie SRM is open to everyone and has some special cash prizes. It will only be **rated** for members who have competed in equal to or less than 5 rounds or if their current rating is less than 800 rating points.

Prizes:

  • 1st :: $300
  • 2nd :: $200
  • 3rd :: $100
  • $25 for 5 other random participants
  • Topcoder T-shirt for Top 30
  • *All prizes are only for members who are eligible to be rated.

Stats — Algorithm Finalists Head to Head

We hope to see you there!

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By hmehta, history, 3 weeks ago, In English

Topcoder SRM 793 is scheduled to start at 21:00 UTC-5 on November 4, 2020.

Registration is now open for the SRM in the Arena or Applet and closes at 20:55 UTC-5. The coding phase will start at 21:05 UTC-5, so make sure that you are all ready to go. Click here to what time it starts in your area.

Learn more about problem writing and testing opportunities.

Choose Your Competition Arena

There are two ways to compete in Algorithm Competitions or Single Round Matches (SRMs). Read here to find which works best for you.

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)

Learn more about problem writing and testing opportunities.

Best of luck!
- the Topcoder Team

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By hmehta, 4 weeks ago, In English

Marathon Match 121

Topcoder MM 121 - SoccerTournament is now live!

Problem Setterdimkadimon
Problem TestersJacoCronje and kphmd

Problem Overview: 
N teams play in a round-robin soccer tournament where each team plays every other team once. Each game has three possible outcomes: win for first team, win for second team or a draw. If a team wins the game then it receives **W** points. If the game is a draw then both teams receive **D** points. The losing team receives no points. Your task is to reconstruct the result of each game given the total number of goals scored, goals conceded and points earned by each team. You will receive 1 point for predicting a game's outcome (win, loss, draw) correctly. You will receive additional 2 points for also predicting the game's exact score.

Register Now!

Best of luck! 
- the Topcoder Team

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By hmehta, history, 5 weeks ago, In English

Topcoder SRM 792 is scheduled to start at 07:00 UTC-4 on October 23, 2020

Registration is now open for the SRM in the Arena or Applet and closes at 06:55 UTC-4. The coding phase will start at 07:05 UTC-4, so make sure that you are all ready to go. Click here to what time it starts in your area.

Learn more about problem writing and testing opportunities.

Choose Your Competition Arena

There are two ways to compete in Algorithm Competitions or Single Round Matches (SRMs). Read here to find which works best for you.

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)

Learn more about problem writing and testing opportunities.

Best of luck!
- the Topcoder Team

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By hmehta, history, 6 weeks ago, In English

Topcoder SRM 791 is scheduled to start at 12:00 UTC-4 on October 17, 2020.

Registration is now open for the SRM in the Arena or Applet and closes at 11:55 UTC-4.The coding phase will start at 12:05 UTC-4, so make sure that you are all ready to go. Click here to what time it starts in your area.

Thanks to laoriu for writing the problem set. Also thanks to misof for testing and coordinating the round.

Choose Your Competition Arena

There are two ways to compete in Algorithm Competitions or Single Round Matches (SRMs). Read here to find which works best for you.

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)

Learn more about problem writing and testing opportunities.

Best of luck!
- the Topcoder Team

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By hmehta, history, 2 months ago, In English

Topcoder MM 120 -  ReversalSort is now live!

Problem Setterdimkadimon
Problem TestersJacoCronje and kphmd

Problem Overview: 
You are given a sequence S containing **N** numbers in the range [0, **K**). Your task is to sort this sequence into monotonically increasing order, in a way that incurs the smallest penalty. You are allowed to select any contiguous sub-sequence of numbers and reverse their order. Formally, if the sub-sequence is (S[i], S[i+1], ..., S[k-1], S[k]), where 0 <= i < k < **N**, then its reversal is (S[k], S[k-1], ..., S[i+1], S[i]). The penalty incurred by this reversal is floor[(k-i+1)^**X**], where **X** is a given penalty parameter. Your task is to minimize the total penalty incurred by all the reversals.

Register Now!

Best of luck! 
- the Topcoder Team

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By hmehta, history, 3 months ago, In English

Topcoder SRM 790 is scheduled to start at 11:00 UTC -4, Sept 10, 2020.

Registration is now open for the SRM in the Arena or Applet and will closes at 10:55 UTC-4. The coding phase will start at 11:05 UTC-4, so make sure that you are all ready to go.

Thanks to nikhil_chandak for writing the problem set. Also thanks to misof for testing and coordinating the round.

Choose Your Competition Arena

There are two ways to compete in Algorithm Competitions or Single Round Matches (SRMs). Read here to find which works best for you.

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!

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By hmehta, history, 3 months ago, In English

The Parallel Round of fourth Algorithm Competition Online Round of the 2020 Topcoder Open has arrived! Parallel Round 4 will be held on Saturday, Sept 5 at 12:00 UTC -4.

The match will be **rated**

Please note that you must register for this round in the Arena. Registration is now open for the round in the Arena or Applet and will close at 11:55 UTC-4. The coding phase will start at 12:05 UTC-4, so make sure that you are all ready to go. See what time Round 4 starts in your area.

Don’t know how to compete in Topcoder Algorithm Competitions?

Check out this guide to successfully compete in an algorithm match.

You can compete using:

  • Topcoder Java Applet - You can refer to this guide here to set up the applet. (Note that those who have Java 8 installed on their machine will see a security issue — You will have to add Topcoder in security exceptions in Java Control Panel. Please refer to the details in the guide.)
  • Topcoder Web Arena(Beta) - Please watch this video for step by step guide

Best of luck to you in the Arena!

- The Topcoder Community team

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By hmehta, history, 3 months ago, In English

Topcoder SRM 789 is scheduled to start at 13:00 UTC -4, August 30, 2020.

Registration is now open for the SRM in the Arena or Applet and will closes at 12:55 UTC-4. The coding phase will start at 13:05 UTC-4, so make sure that you are all ready to go.

Thanks to square1001, lg5293 and misof for writing the problem set. Also thanks to misof for testing and coordinating the round.

Choose Your Competition Arena

There are two ways to compete in Algorithm Competitions or Single Round Matches (SRMs). Read here to find which works best for you.

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!

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By hmehta, history, 3 months ago, In English

The TCO20 Algorithm Round 3B and Parallel Round of TCO20 Algorithm Round 3B is scheduled to be held on Tuesday, August 18 at 07:00 UTC -4.

The match will be **rated**.

Please note that you must register for this round in the Arena. Registration is open for the round and closes at** 06:55 UTC -4. **The coding phase will open at 07:05 UTC-4.

Please note that you must register for this round in the Arena. Registration is now open for the round in the Arena or Applet and will close 5 minutes before the match begins, so make sure that you are all ready to go. Click here to what time it starts in your area.

Members eligible to compete in the Parallel Round include:
- Members who did not qualify for Round 3
- Members who advanced to Round 4 from Round 3A
Qualified for Round 4 or TCO20 Algorithm Finals from Online Stages 1,2 and 3

Don’t know how to compete in Topcoder Algorithm Competitions?

Check out this guide to successfully compete in an algorithm match.

You can compete using:

  • Topcoder Java Applet - You can refer to this guide here to set up the applet. (Note that those who have Java 8 installed on their machine will see a security issue — You will have to add Topcoder in security exceptions in Java Control Panel. Please refer to the details in the guide.)
  • Topcoder Web Arena(Beta) - Please watch this video for step by step guide

Best of luck to you in the Arena!

  • The Topcoder Community team

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By hmehta, history, 4 months ago, In English

The TCO20 Round 3A and Parallel Round are scheduled to be held on Saturday, August 1 at 12:00 UTC -4.

The match will be rated

Please note that you must register for this round in the Arena. Registration is now open for the round in the Arena or Applet and will close 5 minutes before the match begins, so make sure that you are all ready to go. Click here to what time it starts in your area.

Members eligible to compete in the Parallel Round include:
- Members who did not qualify for Round 3
Qualified for Round 4 or TCO20 Algorithm Finals from Online Stages 1,2 and 3

Don’t know how to compete in Topcoder Algorithm Competitions?

Check out this guide to successfully compete in an algorithm match.

You can compete using:

  • Topcoder Java Applet - You can refer to this guide here to set up the applet. (Note that those who have Java 8 installed on their machine will see a security issue — You will have to add Topcoder in security exceptions in Java Control Panel. Please refer to the details in the guide.)
  • Topcoder Web Arena(Beta) - Please watch this video for step by step guide

Best of luck to you in the Arena!

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By hmehta, history, 4 months ago, In English

Topcoder MM 119 -  HardestMaze is now live!

Problem Setterdimkadimon

Problem TestersJacoCronje and kphmd

Problem Overview: 
You want to create a maze to test the navigating ability of robot vacuum cleaners. The maze is to be designed on an **N**x**N** grid floor, whose cells are either empty ('.') or contain a wall ('#'). There are **R** robots and each robot must visit **T** target locations. In particular, each robot **r** begins in location **Starts[r]** and must visit every location given in **Targets[r]**. The robots do not need to return to their starting location at the end of their journey. The robots can only move through adjacent (horizontally or vertically) empty cells. The robots can see the entire maze and will choose the *shortest* path that visits all their target locations. Some paths of the robot may overlap and these are all counted towards the total distance. Your goal is to make the maze as hard as possible, ie., to maximize the total distance travelled by all the robots.

For example, here is a solution for seed=1. There are 2 robots (crosses) and each must visit 2 target locations (circles). The shortest path for each robot is shown with a different colour. Note that some paths may overlap — this is ok as robots do not interfere with each other.

Register Now!

Best of luck! 
- the Topcoder Team

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By hmehta, history, 4 months ago, In English

Topcoder SRM 788 is scheduled to start at 07:00 UTC -4, July 24, 2020. Registration is now open for the SRM in the Arena or Applet and will close at 06:55 AM, so make sure that you are all ready to go. Please note that the coding phase will begin at 07:05 AM UTC -4 but the registration will still close at 06:55 AM UTC -4.

Thanks to square1001 for writing the problem set. Also thanks to misof for testing and coordinating the round.

This is the first SRM of Stage 1 of TCO21 Algorithm Tournament.

Choose Your Competition Arena

There are two ways to compete in Algorithm Competitions or Single Round Matches (SRMs). Read here to find which works best for you.

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!

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By hmehta, history, 4 months ago, In English

TCO20 Round 2B and Parallel Round of TCO20 Algorithm Round 2A are scheduled to be held on Saturday, July 18 at 12:00 UTC -4.

Both the rounds will be rated

Please note that you must register for this round in the Arena. Registration is now open for the round in the Arena or Applet and will close 5 minutes before the match begins, so make sure that you are all ready to go. Click here to what time it starts in your area.

Members eligible to compete in Round 2B include:

Members eligible to compete in the Parallel Round include:

Don’t know how to compete in Topcoder Algorithm Competitions?

Check out this guide to successfully compete in an algorithm match.

You can compete using:

  • Topcoder Java Applet - You can refer to this guide here to set up the applet. (Note that those who have Java 8 installed on their machine will see a security issue — You will have to add Topcoder in security exceptions in Java Control Panel. Please refer to the details in the guide.)
  • Topcoder Web Arena(Beta) - Please watch this video for step by step guide

Best of luck to you in the Arena!

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By hmehta, history, 5 months ago, In English

TCO20 Round 2A and Parallel Round of TCO20 Algorithm Round 2A are scheduled to be held on Thursday, July 9 at 07:00 UTC -4.

Both the rounds will be _rated_

Please note that you must register for this round in the Arena. Registration is now open for the round in the Arena or Applet and will close 5 minutes before the match begins, so make sure that you are all ready to go. Click here to what time it starts in your area.

Members eligible to compete in Round 2A include:
- Members who won an Automatic Berth* a.k.a Bye* for Round 1
Advancers to Round 2 from Round 1A or Round 1B

Members eligible to compete in the Parallel Round include:
- Members who did not qualify for Round 2
- Members who didn't compete in Online Round 1
Qualifiers for Round 4 or TCO20 Algorithm Finals from Online Stages 1,2 and 3

Don’t know how to compete in Topcoder Algorithm Competitions?

Check out this guide to successfully compete in an algorithm match.

You can compete using:

  • Topcoder Java Applet - You can refer to this guide here to set up the applet. (Note that those who have Java 8 installed on their machine will see a security issue — You will have to add Topcoder in security exceptions in Java Control Panel. Please refer to the details in the guide.)
  • Topcoder Web Arena(Beta) - Please watch this video for step by step guide

Best of luck to you in the Arena!

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By hmehta, history, 5 months ago, In English

Hi All, Topcoder brings you another insightful webinar on Dynamic Programming hosted by our veteran competitor and problem coordinator misof. If you are a beginner, you are encouraged to watch Part 1 before joining this session. The webinar will be followed by a 24-hour Advanced Dynamic Programming Practice Contest.

Register for the webinar now. 

Attendance is limited to the first 500 participants. If you do not get a spot, we will also broadcast live on YouTube. Find it here.

The webinar will be followed by a practice contest to allow you to flex your nerves. Read this tutorial and get ready. The contest will consist of 10 Topcoder Problems which featured in past contests and will be open for 24 hours. You can submit whenever you feel like during the time frame.

Advanced Dynamic Programming Webinar: [June 16, 2020 10:00 UTC-4] (https://www.timeanddate.com/worldclock/fixedtime.html?msg=Advanced+Dynamic+Programming+Webinar&iso=20200616T10&p1=98&ah=23&am=55)

Advanced Dynamic Programming Practice ContestJune 16, 2020 12:00 UTC-4(https://www.timeanddate.com/worldclock/fixedtime.html?msg=Dynamic+Programming+Practice+Contest&iso=20200514T11&p1=98)

Registration is now open for the Practice Contest in the Arena or Applet and will close 5 minutes before the match begins, so make sure that you are all ready to go. Click here to what time it starts in your area.

Please make sure you register for the contest 5 mins before the start time. Once the contest begins you won't be able to register.

After the contest ends also make the contest available in practice rooms.

Happy Learning and Practising :)

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By hmehta, history, 6 months ago, In English

Topcoder MM 118 - DanceFloor is now live!

Problem Setterwleite
Problem TestersJacoCronje, dimkadimon and kphmd.

Problem Overview: 
You and your friends decided to have some fun and went to a night club where there is a nice dance floor, made of colour LED tiles.
Each time a person steps on a dance floor tile, that tile changes its colour.
For the first song of the night, your group will try to make an impressive performance, following a pre-determined choreography and leaving, in the end, the dance floor as "pretty" as possible.

Here is an example solution for seed = 7. The white arrows indicate the next choreography position for each dancer.

Hope to see most of you compete! All the best!

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By hmehta, history, 6 months ago, In English

Topcoder SRM 786 is scheduled to start at 11:00 UTC -4, May 15, 2020. Registration is now open for the SRM in the Arena or Applet and will close at 10:55 AM, so make sure that you are all ready to go. Please note that the coding phase will begin at 11:05 AM UTC -4 but the registration will still close at 10:55 AM UTC -4.

Thanks to jeel_vaishnav and vivek1998299 for writing the problem set. Also thanks to misof for testing and coordinating the round.

This is the fourth SRM of Stage 3 of TCO20 Algorithm Tournament.

Stage 3 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!

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By hmehta, history, 6 months ago, In English

Hi All,

misof is hosting a webinar on Dynamic Programmin today. Register for the webinar now.

The webinar has an admission limit, thus we will also be streaming live on Youtube too: https://www.youtube.com/channel/UCFv29ANLT2FQmtvS9DRixNA

The webinar will be followed by a practice contest to allow you to flex your nerves. Read this tutorial and get ready. The contest will consist of 10 Topcoder Problems which featured in past contests and will be open for 23 hours. You can submit whenever you feel like during the time frame.

Registration is now open for the Practice Contest in the Arena or Applet and will close 5 minutes before the match begins, so make sure that you are all ready to go. Click here to what time it starts in your area.

Dynamic Programming WebinarMay 14, 2020 10:00 UTC-4 

Dynamic Programming Practice ContestMay 14, 2020 11:00 UTC-4

Please make sure you register for the contest 5 mins before the start time. Once the contest begins you won't be able to register.

After the contest ends we will be publishing an editorial for the problem set and also make the contest available in practice rooms.

Happy Learning and Practising :)

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By hmehta, history, 7 months ago, In English

Hey All!

Topcoder SRM 785 is scheduled to start at 12:00 UTC -4, May 09, 2020. Registration is now open in the Web Arena or Applet and will close 5 minutes before the match begins.

Thanks to espr1t for writing the problem set and misof for testing and coordinating the round.

This is the third SRM of Stage 3 of TCO20 Algorithm Tournament.

Stage 3 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!

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By hmehta, history, 7 months ago, In English

The second attempt of the first Online Round of the 2020 Topcoder Open Algorithm Competition has arrived! Round 1B will be held on Tuesday April 28, 2020 at 07:00 UTC -4.

Did you win an 
Automatic Berth* a.k.a Bye* for Round 1 or 
Qualified to Round 4 from Online Stages 1 and 2 or
Advanced to Round 2 from Round 1A? 
We have a parallel rated round for you all!

How many will qualify?
The 750 highest scorers from each Round 1 will win a spot in Round 2 of the Algorithm Competition.

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!

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By hmehta, history, 7 months ago, In English

Hey All!

Topcoder SRM 784 is scheduled to start at 11:00 UTC -4, April 24, 2020. Registration is now open in the Web Arena or Applet and will close 5 minutes before the match begins.

Thanks to Witaliy, lazy_fox and misof for writing the problem set and coordinating the round. Also thanks to a.poorakhavan for writing the editorials.

This is the second SRM of Stage 3 of TCO20 Algorithm Tournament.

Stage 3 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!

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