czhang2718's blog

By czhang2718, 3 months ago, In English

Problems and Solutions

Standard Editorial

Advanced Editorial

Standard Gym

Advanced Gym


Congratulations to our prize-winning teams!


  1. MIT: TreeRichard Qi, Semyon Savkin, Benjamin Qi, William Lin
  2. [broccoli emoji]Ashley Aragorn Khoo (NUS High School), Oleh Naver (Liceum Polit), Roman Yanushevskyi (Kyiv Natural Science Lyceum No. 145), Dorijan Lendvaj (XV. Gimnazija)
  3. social darwinismNovikov Vladimir (Letovo school), Babin Aleksandr (MAEI MS 149), Kudryashov Kirill (CPM school), Mikhnenko Alexey (Pablo Neruda School No. 1568)
  4. House of the DragonShiva Oswal (Seven Springs Academy), Anand John (Brandywine High School), William Tsin (Henry M. Gunn HS), Sam Zhang (Detroit Country Day School)
  5. omk™️Aryan Maskara (La Martiniere for Boys, Kolkata), Vishesh Saraswat (Delhi Public School, R.K. Puram), Paras Kasmalkar (The Orchid School), Ritul Kumar Singh (Delhi Public School Bokaro)
  6. XIV_LO_SLAVESOlaf Surgut (XIV Liceum), Rafa Ma (XIV Liceum), Kamil Kordian Szymczak (VIII Liceum), Marek Muzyka (XIV Liceum)
  7. mike4235 fanclubTran Xuan Bach, Pham Quoc Hung, Dao Ngoc Ha, Nguyen Quang Minh (High School for Gifted Students, Hanoi University of Science, Vietnam National University)
  8. qlown enjoyersAlex Fan (Lexington High School), Samuel Chen (Ladue Horton Watkins High School), Jason Gonzalez (Gonzalez Homeschool), Egor Gagushin (Bedford High School)


Top HS team: BalwenitasAngie Alcantara Castillo, Rolly Mamani Cutipa, Angelo Torres Inga, Angelo D'steffano Farf (Saco Oliveros)

Top MS team: GoldenShadow5Yuanrui Zhao (Evergreen Middle School)


(Full tester list) Thanks to balbit, gabrielwu, galen_colin, Giantpizzahead, meiron03, smax, 12tqian for testing our problems. Special thanks to balbit for solving and providing feedback on every problem!

Lastly, thanks to everyone who participated!

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By czhang2718, 4 months ago, In English

Reminder that the contest starts in 10 minutes!

The Montgomery Blair HS Computer Team is excited to present the fifth edition of Montgomery Blair Informatics Tournament (mBIT), which will be held online from 1:00 PM — 4:00 PM EDT on Sunday, May 22 (05/22/22). Note that the contest is 3 hours long this year.

If you are interested in competing, please register at All problems were written by the Montgomery Blair Computer Team, including jwt4517, czhang2718, -DanTheMan-, gabrielwu, jh0, nachoz, and susp. Special thanks to balbit and Giantpizzahead for testing >.<

mBIT is split into two divisions: Standard and Advanced. Teams may choose which division to compete in. Standard division problems are roughly equivalent to USACO Bronze to Gold and Div 2-3 in difficulty. Advanced division problems are roughly equivalent to USACO Silver to Platinum and Div 1 in difficulty.

mBIT allows teams of up to 4 competitors! Anybody may compete, regardless of their age or country. To qualify for "high school status," all members of your team must be current high school (or middle school) students.

Prizes (per person):

  • $50, $30, $20 for the first, second, and third HS teams in Advanced

  • $40, $30, $20 for the first, second, and third overall teams in Advanced that are not among the top three HS teams

  • $20, $20 for the first HS team and first MS team in Standard

  • AoPS Coupons to the top Standard team

More information can be found on our website. Registration will remain open up until the day of the contest.

If you have any questions, feel free to email, ask in the Discord server (linked below), or comment below. We look forward to seeing you on the leaderboard!


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