hmehta's blog

By hmehta, history, 7 days 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, 2 weeks 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 weeks 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, 4 weeks 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, 5 weeks 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, 2 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, 2 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, 2 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, 2 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, 3 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, 3 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, 4 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, 4 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, 4 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, 5 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, 5 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, 5 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!

Read more »

 
 
 
 
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By hmehta, history, 5 months ago, In English

Topcoder MM 117 -  **RotatingNumbers** is now live!

Problem Setter: dimkadimon

Problem Testers: JacoCronje, kphmdKaasanErinnparanoia and wleite

Problem Statement: 
Given an NxN grid of numbers, your task is to move the numbers to their target locations. A number n at row r and column c (both 0-based) is in its target location if n = r*N + c + 1. A move consists of selecting a square subgrid and rotating all its numbers by 90 degrees clockwise or counterclockwise. Rotating a subgrid of size S (2 <= S <= N) incurs a penalty of floor((S-1)^1.5). A number that does not finish in its target location is penalized by P*dist, where P is a weighting input parameter and dist is the Manhattan distance to its target location. Your task is to minimize the total penalty.

Here is an example solution for seed=1 and N\=4. The subgrid currently being rotated is highlighted in blue for clockwise rotations and in red for counterclockwise rotations. The cells are painted green based on how close their number is to the target location.

Register Now!

Best of luck! 
- the Topcoder Team

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By hmehta, history, 5 months ago, In English

The first Algorithm Competition Online Round of the 2020 Topcoder Open has arrived! Round 1A will be held on Saturday April 18, 2020 at 12:00 UTC -4.

Did you win an _Automatic Berth a.k.a Bye_ for Round 1?
Check out the members who won an automatic berth to Round 2 here. CORRECTED and UPDATED

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

How to Compete?
Please note that you must register for this round in the Arena or Applet. Registration is open for the round and closes at 11:55 UTC -4. Be sure you register early to guarantee your spot in the round as registration is limited to the first 2,500 competitors. Please take a look at our How to Compete guide to understanding Topcoder Algorithm contests better.

Don't forget! There will be one more Round 1 — Round 1B on Tuesday, April 28, 2020 at 07:00 UTC -4.

New to Topcoder and the TCO20? The Algorithm Competition is one of the most fierce and popular tournaments. Battle up against some of the biggest names in coding.

Learn more here.

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)

Best of luck to you in the Arena!

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By hmehta, history, 5 months ago, In English

Hey All!

Topcoder SRM 783 is scheduled to start at 12:00 UTC -4, April 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 problem set and coordinating the round. Also thanks to a.poorakhavan for writing the editorials.

This is the first 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!

Read more »

 
 
 
 
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By hmehta, history, 6 months ago, In English

Hey All!

Topcoder SRM 782 is scheduled to start at 12:00 UTC -4, Mar 28, 2020. Registration is now open in the Web Arena or Applet and will close 5 minutes before the match begins.

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

This is the last 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!

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By hmehta, history, 6 months ago, In English

Hey All!

Topcoder SRM 781 is scheduled to start at 21:00 UTC -4, Mar 19, 2020. Registration is now open in the Web Arena or Applet and will close 5 minutes before the match begins.

Thanks to sinus_070 and misof for writing the problem set and coordinating the round. Also thanks to a.poorakhavan for testing and writing the editorials.

This is the eight 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!

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By hmehta, history, 7 months ago, In English

Hey All!

Topcoder SRM 780 is scheduled to start at 12:00 UTC -5, Mar 7, 2020. 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 problem set and coordinating the round.

This is the seventh 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!

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By hmehta, history, 7 months ago, In English

Topcoder and the Indian Institute of Information Technology (IIIT) Allahabad are excited to bring back the fourth edition of Humblefool Cup Algorithm Match in fond memory of Harsha Suryanarayana humblefoolLearn More

Harsha is considered to be the best coder India has ever produced. A Topcoder member since 2005, humblefool – as he is known within the coding community – was a TCO Finalist twice. Up until his tragic death in an accident in 2014, Humblefool was at the top of his game in SRMs and personally trained and motivated many other members.

The Humblefool Cup is organized every year to preserve his legacy and contribution to the Community.

2020 Humblefool Cup Prelims is scheduled to start at 12:00 UTC-5 on March 4, 2020.

Registration is now open for the SRM 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.

Problem Setters:  misof and timmac

Prizes:

  • The top 30 students located in India will be invited to compete onsite at Indian Institute of Information Technology, Allahabad for $500 in prizes.
  • The best-ranked _student_ in the qualifying round (_not located in India_) will be awarded $100 prize money.

Please Note: This round is rated and is open to all. However, only students are eligible for the prizes.

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 779 is scheduled to start at 11:00 UTC -5, Feb 21, 2020. Registration is now open in the Web Arena or Applet and will close 5 minutes before the match begins.

Thanks to misof and lazy_fox (CF:mridul1809) for writing the problems and coordinating the round.

This is the sixth 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!

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