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Competitive Programming

Problems I have solved and contests I have taken part in across online judges, mostly during my undergraduate years at AUST.

1,200+problems solved across 15 online judges
128rated contests (Codeforces, Toph, AtCoder)
1377peak Codeforces rating · Pupil
1735Toph rating
Codeforces rating 82 contests · 2018–2023
Codeforces rating over 82 contests, 2018–2023; peak 13776008001000120014001600Pupil 120020192020202120222023Peak 1377
View as table
DateContestRankRating
Dec 2023Codeforces Round 918 (Div. 4)73571065
Dec 2023Codeforces Round 916 (Div. 3)97601033
Dec 2023Codeforces Round 913 (Div. 3)77101048
Nov 2022Codeforces Round 835 (Div. 4)97511041
Mar 2022Codeforces Round 780 (Div. 3)68201088
Mar 2022CodeTON Round 1 (Div. 1 + Div. 2, Rated, Prizes!)91111098
Mar 2022Educational Codeforces Round 125 (Rated for Div. 2)38361153
Mar 2022Codeforces Round 776 (Div. 3)80351071
Mar 2022Codeforces Round 775 (Div. 2, based on Moscow Open Olympiad in Informatics)53741088
Mar 2022Codeforces Round 774 (Div. 2)60271102
Sept 2020Codeforces Round 674 (Div. 3)31951093
Aug 2020Codeforces Round 663 (Div. 2)102331037
Aug 2020Codeforces Round 662 (Div. 2)107491081
Aug 2020Codeforces Round 661 (Div. 3)90671141
Jul 2020Codeforces Round 660 (Div. 2)68461176
Jul 2020Educational Codeforces Round 92 (Rated for Div. 2)94551152
Jul 2020Codeforces Round 659 (Div. 2)60841180
Jul 2020Codeforces Round 658 (Div. 2)106501146
Jul 2020Codeforces Round 656 (Div. 3)82041207
May 2020Codeforces Round 642 (Div. 3)119381256
May 2020Codeforces Round 640 (Div. 4)19321343
May 2020Codeforces Round 638 (Div. 2)72171266
Apr 2020Educational Codeforces Round 86 (Rated for Div. 2)65161233
Apr 2020Codeforces Round 637 (Div. 2) - Thanks, Ivan Belonogov!126271165
Apr 2020Codeforces Round 636 (Div. 3)72841275
Apr 2020Codeforces Round 635 (Div. 2)61321279
Apr 2020Codeforces Round 634 (Div. 3)55101239
Apr 2020Codeforces Round 633 (Div. 2)53011185
Apr 2020Educational Codeforces Round 85 (Rated for Div. 2)105241101
Apr 2020Codeforces Round 632 (Div. 2)109341102
Apr 2020Codeforces Round 631 (Div. 2) - Thanks, Denis aramis Shitov!88951151
Mar 2020Codeforces Global Round 769191194
Mar 2020Codeforces Round 628 (Div. 2)67881177
Mar 2020Educational Codeforces Round 83 (Rated for Div. 2)55311200
Mar 2020Ozon Tech Challenge 2020 (Div.1 + Div.2, Rated, T-shirts + prizes!)32831214
Feb 2020Codeforces Round 623 (Div. 2, based on VK Cup 2019-2020 - Elimination Round, Engine)31311087
Feb 2020Codeforces Round 621 (Div. 1 + Div. 2)63361131
Nov 2019Codeforces Round 601 (Div. 2)33151195
Nov 2019Codeforces Round 600 (Div. 2)29531171
Nov 2019Educational Codeforces Round 76 (Rated for Div. 2)56021067
Nov 2019Codeforces Round 599 (Div. 2)56271082
Nov 2019Codeforces Round 598 (Div. 3)44611158
Oct 2019Codeforces Round 596 (Div. 2, based on Technocup 2020 Elimination Round 2)33681159
Oct 2019Educational Codeforces Round 75 (Rated for Div. 2)40741162
Oct 2019Codeforces Round 595 (Div. 3)44611152
Oct 2019Codeforces Round 590 (Div. 3)48751152
Sept 2019Codeforces Round 589 (Div. 2)58461157
Sept 2019Codeforces Round 588 (Div. 2)31021171
Sept 2019Codeforces Round 587 (Div. 3)23901091
Sept 2019Codeforces Round 586 (Div. 1 + Div. 2)43681007
Sept 2019Codeforces Round 584 - Dasha Code Championship - Elimination Round (rated, open for everyone, Div. 1 + Div. 2)5483928
Aug 2019Codeforces Round 581 (Div. 2)64291029
Aug 2019Codeforces Round 580 (Div. 2)61511026
Aug 2019Codeforces Round 577 (Div. 2)44801050
Jul 2019Codeforces Round 575 (Div. 3)41001059
Jul 2019Educational Codeforces Round 69 (Rated for Div. 2)47861017
Jul 2019Codeforces Global Round 44478990
Jul 2019Educational Codeforces Round 68 (Rated for Div. 2)5294960
Jul 2019Codeforces Round 573 (Div. 2)4144998
Jul 2019Codeforces Round 572 (Div. 2)4776918
Jun 2019Educational Codeforces Round 67 (Rated for Div. 2)4213953
Jun 2019Codeforces Round 570 (Div. 3)4844913
Jun 2019Codeforces Round 569 (Div. 2)4854873
Jun 2019Codeforces Round 568 (Div. 2)4981946
Jun 2019Codeforces Round 567 (Div. 2)3624932
Jun 2019Codeforces Round 566 (Div. 2)4805861
Jun 2019Codeforces Round 565 (Div. 3)3906830
May 2019Codeforces Round 562 (Div. 2)3754731
May 2019Codeforces Round 561 (Div. 2)4243821
May 2019Educational Codeforces Round 65 (Rated for Div. 2)4756912
May 2019Codeforces Round 560 (Div. 3)3827971
May 2019Codeforces Round 559 (Div. 2)19951000
May 2019Codeforces Round 558 (Div. 2)3250872
Apr 2019Codeforces Round 556 (Div. 2)4173812
Apr 2019Codeforces Round 555 (Div. 3)3727791
Apr 2019Codeforces Round 554 (Div. 2)5124882
Apr 2019Codeforces Round 551 (Div. 2)4507923
Oct 2018Codeforces Round 518 (Div. 2) [Thanks, Mail.Ru!]28041017
Oct 2018Codeforces Round 515 (Div. 3)32621109
Oct 2018Educational Codeforces Round 52 (Rated for Div. 2)40501213
Oct 2018Codeforces Round 514 (Div. 2)40911263
Oct 2018Codeforces Round 513 by Barcelona Bootcamp (rated, Div. 1 + Div. 2)33341377
Problems solved by judge 1,245 total
Most-solved topics 567 Codeforces problems
  • Implementation 301
  • Math 205
  • Greedy 158
  • Brute force 97
  • Sortings 76
  • Strings 63
  • Constructive algorithms 58
  • Number theory 41

HackerRank certified: Problem Solving (Basic) · Java (Basic) · Java (Intermediate) · C++ (Basic)

Counts come from each judge's public profile; LightOJ, SPOJ, Aizu, HDU, Kattis, e-olymp and ZOJ are counted from my solutions archive. Updated October 2026.