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Top rated · Stats

Dmitriy.Belichenko

Open on Codeforces · Unique solved

Rating2937· International Grandmaster

Bar charts count unique accepted problems (merged with the global problem set for rating and tags). Heatmaps use UTC calendar days. Rating squares are sums of newRating − oldRating from user.rating when System update time falls on that day. Submissions count every row from user.status (all verdicts), paginated until Codeforces has no more rows—heavy accounts can take a few seconds.

Rated contests
94
Unique solved
1,050
Submissions (all)
3,552
Years with activity
2016–2026

Solved by problem rating

Unique accepted problems, bucketed by catalog rating (100‑point bands). Unrated = no rating in the problem set.

  • Unrated181
  • 800–899114
  • 900–99937
  • 1000–109952
  • 1100–119941
  • 1200–129960
  • 1300–1399

Solved by topic

Each problem counts once per tag (same as Codeforces tags). Top tags shown; remaining mass in “Other”.

  • implementation314
  • math297
  • greedy215
  • brute force155
  • dp146
  • constructive algorithms143
  • data structures

Rating changes

2016

Sum of rating deltas on each UTC day (GitHub-style weeks, Sunday top).

Jan
Feb
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May

Submission volume

Download all years PNG

2016

Download PNG

Count of submissions per UTC day (includes every verdict).

Jan
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Recent rated rounds

When (UTC)ContestRankΔNew
2021-03-13 11:35Codeforces Round 707 (Div. 1, based on Moscow Open Olympiad in Informatics)23+302937
2020-11-01 13:05Codeforces Round 680 (Div. 1, based on Moscow Team Olympiad)68-622907
2020-10-25 13:05Codeforces Round 679 (Div. 1, based on Technocup 2021 Elimination Round 1)26+142969
2020-05-12 15:05Codeforces Round 641 (Div. 1)4+1812955
2020-03-07 11:35
49
  • 1400–149937
  • 1500–159962
  • 1600–169976
  • 1700–179952
  • 1800–189946
  • 1900–199945
  • 2000–209936
  • 2100–219931
  • 2200–229918
  • 2300–239918
  • 2400–249922
  • 2500–259918
  • 2600–269911
  • 2700–279913
  • 2800–28998
  • 2900–29994
  • 3000–30992
  • 3100–31994
  • 3200–32997
  • 3300–33991
  • 3400–34992
  • 3500–35993
  • 105
  • number theory98
  • binary search82
  • sortings75
  • graphs74
  • strings68
  • dfs and similar65
  • trees58
  • combinatorics53
  • bitmasks44
  • two pointers34
  • geometry33
  • dsu24
  • *special24
  • interactive18
  • probabilities17
  • games17
  • hashing16
  • shortest paths14
  • matrices8
  • divide and conquer8
  • meet-in-the-middle7
  • Other (7 tags)26
  • Jun
    Jul
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    Sep
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    Green: rating up · red: rating down · intensity: |Δ| tiers (<50, 50–99, 100+). One square may combine multiple rated contests on the same UTC day.

    2017

    Sum of rating deltas on each UTC day (GitHub-style weeks, Sunday top).

    Jan
    Feb
    Mar
    Apr
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    Jun
    Jul
    Aug
    Sep
    Oct
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    Dec

    Green: rating up · red: rating down · intensity: |Δ| tiers (<50, 50–99, 100+). One square may combine multiple rated contests on the same UTC day.

    2018

    Sum of rating deltas on each UTC day (GitHub-style weeks, Sunday top).

    Jan
    Feb
    Mar
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    Dec

    Green: rating up · red: rating down · intensity: |Δ| tiers (<50, 50–99, 100+). One square may combine multiple rated contests on the same UTC day.

    2019

    Sum of rating deltas on each UTC day (GitHub-style weeks, Sunday top).

    Jan
    Feb
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    Dec

    Green: rating up · red: rating down · intensity: |Δ| tiers (<50, 50–99, 100+). One square may combine multiple rated contests on the same UTC day.

    2020

    Sum of rating deltas on each UTC day (GitHub-style weeks, Sunday top).

    Jan
    Feb
    Mar
    Apr
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    Jun
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    Dec

    Green: rating up · red: rating down · intensity: |Δ| tiers (<50, 50–99, 100+). One square may combine multiple rated contests on the same UTC day.

    2021

    Sum of rating deltas on each UTC day (GitHub-style weeks, Sunday top).

    Jan
    Feb
    Mar
    Apr
    May
    Jun
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    Dec

    Green: rating up · red: rating down · intensity: |Δ| tiers (<50, 50–99, 100+). One square may combine multiple rated contests on the same UTC day.

    2022

    Sum of rating deltas on each UTC day (GitHub-style weeks, Sunday top).

    Jan
    Feb
    Mar
    Apr
    May
    Jun
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    Dec

    Green: rating up · red: rating down · intensity: |Δ| tiers (<50, 50–99, 100+). One square may combine multiple rated contests on the same UTC day.

    2023

    Sum of rating deltas on each UTC day (GitHub-style weeks, Sunday top).

    Jan
    Feb
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    Dec

    Green: rating up · red: rating down · intensity: |Δ| tiers (<50, 50–99, 100+). One square may combine multiple rated contests on the same UTC day.

    2024

    Sum of rating deltas on each UTC day (GitHub-style weeks, Sunday top).

    Jan
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    Dec

    Green: rating up · red: rating down · intensity: |Δ| tiers (<50, 50–99, 100+). One square may combine multiple rated contests on the same UTC day.

    2026

    Sum of rating deltas on each UTC day (GitHub-style weeks, Sunday top).

    Jan
    Feb
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    Dec

    Green: rating up · red: rating down · intensity: |Δ| tiers (<50, 50–99, 100+). One square may combine multiple rated contests on the same UTC day.

    May
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    LessMore (max 25/day in 2016)

    2017

    Download PNG

    Count of submissions per UTC day (includes every verdict).

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    LessMore (max 41/day in 2017)

    2018

    Download PNG

    Count of submissions per UTC day (includes every verdict).

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    2019

    Download PNG

    Count of submissions per UTC day (includes every verdict).

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    2020

    Download PNG

    Count of submissions per UTC day (includes every verdict).

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    2021

    Download PNG

    Count of submissions per UTC day (includes every verdict).

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    2022

    Download PNG

    Count of submissions per UTC day (includes every verdict).

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    LessMore (max 448/day in 2022)

    2023

    Download PNG

    Count of submissions per UTC day (includes every verdict).

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    LessMore (max 3/day in 2023)

    2024

    Download PNG

    Count of submissions per UTC day (includes every verdict).

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    LessMore (max 7/day in 2024)

    2026

    Download PNG

    Count of submissions per UTC day (includes every verdict).

    Jan
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    LessMore (max 1/day in 2026)

    Codeforces Round 626 (Div. 1, based on Moscow Open Olympiad in Informatics)
    16
    +94
    2774
    2019-09-23 16:35Codeforces Round 588 (Div. 1)9+1732680
    2019-09-04 11:35Codeforces Round 583 (Div. 1 + Div. 2, based on Olympiad of Metropolises)29+1032507
    2019-06-01 16:50Codeforces Global Round 349+1292404
    2019-04-06 13:35Codeforces Global Round 2203+362275
    2019-03-08 11:35Codeforces Round 545 (Div. 1)75+952239
    2019-02-24 17:35Codeforces Round 542 [Alex Lopashev Thanks-Round] (Div. 1)223-212144
    2019-02-07 15:35Codeforces Global Round 1317+472165