Salam sejahtera, Codeforces!

We are excited to invite you to the mirror of Indonesia National Contest (INC) 2026!

The Indonesia National Contest (INC) is an annual online programming competition that serves as a preliminary and qualifying round for Indonesian teams to advance to the ICPC Asia Jakarta Regional Contest.

Key details:

• Rated for all

• Contest links: TLX

• Time: Sunday, October 25, 2026 at 13:05 UTC

• Duration: 2 hours

• Problems: 6

• Allowed languages: C, C++11, C++17, C++20, Pascal, Java, Python 3, Go, Rust

• Contest style: ICPC

  • Penalty per wrong submission: 10 minutes
  • There will be no scoreboard freeze.

• Available Languages: English, Bahasa Indonesia

We would like to thank:

• Yoshiyuki, Chrisedyong, faustaadp, fushar, HahahaHihihi, Owmicron, prabowo, Pyqe, suhendry, and Zanite as the judges and authors of INC 2026.
• AVM.Martin and ArgoCahaya as the technical committee of INC 2026.
• aufannn, avner.m.lim, bananade1, ByeWorld512, Drakozs, Nevll, piee, rfpermen, SunShine11, takeonicky, Twits, vioalbert, and ZeroScar for testing the problems and giving outstanding feedback.
• fushar for the majestic TLX platform.
• You for participating!

Please register for the contest! We encourage you to read all problems. Enjoy the mirror!

UPD: Contest is over! The preliminary results are out. We are finalizing the results; this might take one to two days.

Congratulations to our top 5:

1. maspy
2. flashmt
3. dewana310
4. Romy67
5. wx03

Congratulations to our first solvers:

A: bramar2
B: maspy
C: maspy
D: maspy
E: maspy
F: maspy

The editorial is available here.

Thank you for participating and see you on the next contest!

Selamat siang, Codeforces!

We are excited to invite you to the mirror of BNPC-HS Final Round!

BNPC-HS (Bina Nusantara Programming Contest for High School Students) is an annual competitive programming competition hosted by BINUS University as part of BeeFest, a national-level competition for high school students. This contest is mirrored from the problemset of the Final Round of BNPC-HS 2025, and is open for everyone to join (not limited to high school students)!

Key details:

• Rated for all

• Contest links: TLX

• Time: Sunday, October 19, 2025 at 04:05 UTC

• Duration: 4 hours

• Problems: 10

• Allowed languages: C, C++11, C++17, C++20, Pascal, Java, Python 3, Go, Rust

• Contest style: ICPC

  • Penalty per wrong submission: 15 minutes
  • The scoreboard will be frozen 60 minutes before the end of the contest, and unfrozen soon after the contest ends.

• Available Languages: English, Bahasa Indonesia

• Writers: Alstonton, bonk, Chrisedyong, Drakozs, Chiz, chpp, Michael_H, Owmicron, Ngeces, Twits, undev, Yoshiyuki, Zanite

We would like to thank:

• ClairObscur, Nevll, Twits, rfpermen, and takeonicky for testing the problems and giving splendid feedback.
• AVM.Martin, saul, undev, and Vorbunny as the technical committee of BNPCHS 2025.
• fushar for the marvelous TLX platform.

Please register for the contest and we encourage you to read all problems! We hope you enjoy the mirror!

UPD: Contest is over!

Congratulations to our top 5:

1. maspy
2. potato167
3. Rubikun
4. Kude
5. physics0523

Congratulations to our first solvers:

G: Rubikun
H: potato167
I: Rubikun
J: maspy
K: maspy
L: kioanandamath
M: potato167
N: maspy
O: potato167
P: potato167

You can upsolve the problems here.

Editorial is available in the upsolve link.

Thank you for participating and see you on the next contest!

Selamat pagi, Codeforces!

We are excited to invite you to the mirror of BNPC-HS Qualification Round!

BNPC-HS (Bina Nusantara Programming Contest for High School Students) is an annual competitive programming competition hosted by BINUS University as part of BeeFest, a national-level competition for high school students. This contest is mirrored from the problemset of the Qualification Round of BNPC-HS 2025, and is open for everyone to join (not limited to high school students)!

Key details:

• Rated for all

• Contest links: TLX

• Time: Sunday, September 21, 2025 at 02:05 UTC

• Duration: 3 hours

• Problems: 6

• Allowed languages: C, C++11, C++17, C++20, Pascal, Java, Python 3, Go, Rust

• Contest style: ICPC

  • Penalty per wrong submission: 6 minutes

• Available Languages: English, Bahasa Indonesia

• Writers: Alstonton, chpp, Chiz, Drakozs, Michael_H, Yoshiyuki, Zanite

We would like to thank:

• bonk, Ngeces, SunShine11, takeonicky, and vannnn for testing the problems and giving superb feedback.
• fushar for the magnificent TLX platform.

Please register for the contest and we encourage you to read all problems! We hope you enjoy the mirror!

UPD: Contest is over! We apologize for the delay in the post-contest update.

Congratulations to our top 5:

1. potato167
2. Benq
3. kotatsugame
4. hos.lyric
5. Rubikun

Congratulations as well to Benq who was the first to solve problems A to E, and to potato167 who was the first to solve problem F!

You can upsolve the problems here.

Editorial is available in the upsolve link.

Thank you for participating and see you on the next contest!

Hello, Codeforces!

We are excited to invite you to TLX Regular Open Contest #40 (based on BNPCHS 2024 Final Round)!

BNPCHS (Bina Nusantara Programming Contest for High School Students) is an annual competitive programming competition hosted by Binus University as part of BeeFest, a national-level competition for high school students. The problemset will be based on BNPCHS 2024 final round. The TROC will be happening alongside the onsite contest and is open for everyone to join!

Key details:

• Contest links: TLX

• Time: 3rd November 2024, 06:05 UTC. Note the unusual time of the round.

• Writers: ArgoCahaya, joelgun14, Owmicron, Zanite

• Duration: 2 hours

• Problems: 8

• Scoring distribution: 100 — 300 — 300 — 500 — 500 — 500 — 600 — 700

We would like to thank:

• Pyqe and tzaph_ for the breathtaking coordination.
• ArgoCahaya, jiayi_ko, Owmicron, SunShine11, takeonicky, Twits, TypeYippie, Chrisedyong, and Zanite as the scientific committee of BNPCHS 2024.
• AVM.Martin and TypeYippie as the technical committee of BNPCHS 2024.
• bonk, Drew_, Evan_, Drakozs, MakanCuy, MikiMiku, Ngeces, rfpermen, robertoeugenio, and steven.novaryo for testing the problems and giving spectacular feedback.
• fushar for the outstanding TLX platform.
• BINUS University, all the local committees, administrators, and managers of BeeFest and BNPCHS 2024.

Please register for the contest and we encourage you to read all problems! We hope you enjoy TROC #40!

UPD: Contest is over!

Congratulations to our top 5:

1. tourist
2. potato167
3. hos.lyric
4. maspy
5. rin204

Congratulations to our first solvers:

A: __jk__
B: tourist
C: tourist
D: rin204
E: tourist
F: hos.lyric
G: hos.lyric
H: tourist

You can upsolve the problems here.

Editorial is available in the upsolve link.

Thank you for participating and see you on the next contest!

We are excited to invite you to TLX Regular Open Contest #39!

Key details:

• Contest links: TLX

• Time: 25th October 2024, 13:20 UTC

• Writers: joelgun14, joshjms, JvThunder, MetalPower, Nevll, tzaph_, Zanite

• Duration: 2 hours

• Problems: 8

• Scoring distribution: 150 — 200 — 350 — 450 — 600 — 700 — 700 — 750

We would like to thank:

• Pyqe and tzaph_ for the astounding coordination.
• KindaNameless and Pyqe for the help with problem preparation.
• aufannn, CyberSleeper, Drew_, KRook, and TypeYippie, for testing the problems and giving meticulous feedback.
• fushar for the outstanding TLX platform.

Please register for the contest and we encourage you to read all problems! Enjoy the contest, and we hope to see your...

UPD: Contest is over!

Congratulations to our top 5:

1. maspy
2. rin204
3. potato167
4. Rubikun
5. peti1234

Congratulations to our first solvers:

A: physics0523
B: physics0523
C: Nyaan
D: rin204
E: hos.lyric
F: rin204
G: peti1234
H: maspy

You can upsolve the problems here.

Editorial is available in the upsolve link.

Thank you for participating and see you on the next contest!

Hello, Codeforces!

We are excited to invite you to TLX Regular Open Contest #37!

Key details:

• Contest links: TLX

• Time: 3rd August 2024, 14:05 UTC

• Writer: Zanite

• Duration: 2 hours 30 minutes

• Problems: 8

• Scoring distribution: 100 — 300 — 500 — 650 — 700 — 800 — 900 — 1000

I would like to thank:

• tzaph_ for the phenomenal coordination, and for coordinating his first TROC!
• Pyqe, steven.novaryo, and joelgun14 for testing the problems and giving marvelous feedback.
• fushar for the amazing TLX platform.

Please register for the contest and I encourage you to read all problems! Enjoy the contest, and I hope to see your SHOWTIME! 🎪 🎪 🎪

UPD: Added scoring distribution!

UPD2: Contest is over!

Congratulations to our top 5:

1. hos.lyric
2. kotatsugame
3. 244mhq
4. maspy
5. hitonanode

Congratulations to our first solvers:

A: physics0523
B: Dominater069
C: PCTprobability
D: potato167
E: potato167
F: hos.lyric
G: 244mhq
H: hos.lyric

You can upsolve the problems here.

Editorial is available in the upsolve link.

Thank you for participating and see you on the next contest!

Whether or not you went to the ICPC WF 2023 in Luxor, you might remember us from the Indomie trade offer blog a while back.

Aside from my team (rfpermen, me, vioalbert, and siplusplus as coach) in the previous blog, of course our university's team for the 46th WF (Owmicron, ZeroScar, KerakTelor, and Yoshiyuki as coach) also joined us in many of our activities, including finding people to trade and/or give the two boxes of Indomie we brought to Luxor.

In this blog, I'd like to share some of the pictures we (Jollybee, the CP team in our university) took with others during the WF.

UPD: There were several issues with the images; they weren't loading properly. The images are now hosted on ImgBB.

Signed T-Shirts

After doing something similar when I was participating in IOI 2022, I suggested to the others several months ago that we should bring white T-shirts and some markers to WF for people to sign on. siplusplus then bought some clothes markers and printed a bunch of T-shirts with the ICPC logo on it (yes, a bunch of people thought it was an official T-shirt), one for each person. Only two of them were actually used:

Thanks to everyone who signed the shirts – you will forever be remembered in Jollybee's lab, where the shirts will be hung ;)

Photos

We also took a bunch of photos!

antontrygubO_o

awoo

E869120 and square1001

ecnerwala and tourist

ecnerwala – again! – and ksun48

Egor

Errichto

galen_colin and sam571128

neko_nyaaaaaaaaaaaaaaaaa and steven.novaryo

SecondThread – hopefully you liked our shirts ;)

Bill Poucher

Fredrik Niemelä

And of course, thank you to MikeMirzayanov for the great Codeforces and Polygon platforms:

Finally, here is a picture of us with some fellow Indonesians – Berted, Morphed, and steven.novaryo – during the closing ceremony:

And here's a picture of me playing Luxor (the video game) at the Luxor airport:

Of course, if we asked you to take a picture together, you'd have a pack of Indomie from us, which you might or might not have eaten. Has anyone tried cooking it – and did it taste good?

Despite the fact that a lot of unexpected things happened during the WF, and that the problems weren't exactly our strong suit, I'm very grateful that this WF gave us the chance to meet up with the community. Thanks to everyone who made this happen, and I hope we can meet again in other events in the near future!

The API documentation on blogEntry.view mentions that it returns a BlogEntry object in full version (which includes the content field, unlike the short version). However, when I perform an API request to this method, it seems like it returns the short version of the BlogEntry object with no content field.

Was the removal of this feature intentional, or was it a bug? Are there any other ways to get the content of a blog aside from using this method?

Any help from MikeMirzayanov or others would be greatly appreciated.