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EgorUlin

Open on Codeforces · Unique solved

Rating2142· Master

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
37
Unique solved
1,856
Submissions (all)
3,649
Years with activity
2020–2025

Solved by problem rating

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

  • Unrated276
  • 800–899789
  • 900–999230
  • 1000–109986
  • 1100–119956
  • 1200–129962
  • 1300–139961

Solved by topic

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

  • implementation667
  • math621
  • greedy555
  • brute force301
  • constructive algorithms298
  • sortings194

Rating changes

2020

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

Jan
Feb
Mar
Apr
May

Submission volume

Download all years PNG

2020

Download PNG

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

Jan
Feb
Mar
Apr

Recent rated rounds

When (UTC)ContestRankΔNew
2024-04-27 16:35Codeforces Round 941 (Div. 1)415+462142
2024-04-13 16:35Codeforces Round 939 (Div. 2)68+1132096
2024-03-30 17:35CodeTON Round 8 (Div. 1 + Div. 2, Rated, Prizes!)674+651983
2024-01-13 16:35Codeforces Round 919 (Div. 2)1421-551918
2024-01-06 17:05Hello 2024789
1400–1499
48
  • 1500–159941
  • 1600–169926
  • 1700–179933
  • 1800–189930
  • 1900–199930
  • 2000–209913
  • 2100–219914
  • 2200–229919
  • 2300–239915
  • 2400–249911
  • 2500–25994
  • 2600–26994
  • 2700–27996
  • 3100–31991
  • 3300–33991
  • strings
    164
  • dp153
  • number theory110
  • data structures107
  • binary search86
  • graphs66
  • dfs and similar61
  • bitmasks58
  • combinatorics57
  • two pointers52
  • games47
  • geometry38
  • *special33
  • trees30
  • dsu24
  • flows16
  • shortest paths15
  • hashing11
  • divide and conquer11
  • graph matchings10
  • 2-sat7
  • interactive5
  • Other (7 tags)26
  • Jun
    Jul
    Aug
    Sep
    Oct
    Nov
    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
    Jul
    Aug
    Sep
    Oct
    Nov
    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
    Jul
    Aug
    Sep
    Oct
    Nov
    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
    Mar
    Apr
    May
    Jun
    Jul
    Aug
    Sep
    Oct
    Nov
    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
    Feb
    Mar
    Apr
    May
    Jun
    Jul
    Aug
    Sep
    Oct
    Nov
    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.

    2025

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

    Jan
    Feb
    Mar
    Apr
    May
    Jun
    Jul
    Aug
    Sep
    Oct
    Nov
    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
    Jun
    Jul
    Aug
    Sep
    Oct
    Nov
    Dec

    LessMore (max 5/day in 2020)

    2021

    Download PNG

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

    Jan
    Feb
    Mar
    Apr
    May
    Jun
    Jul
    Aug
    Sep
    Oct
    Nov
    Dec

    LessMore (max 8/day in 2021)

    2022

    Download PNG

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

    Jan
    Feb
    Mar
    Apr
    May
    Jun
    Jul
    Aug
    Sep
    Oct
    Nov
    Dec

    LessMore (max 65/day in 2022)

    2023

    Download PNG

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

    Jan
    Feb
    Mar
    Apr
    May
    Jun
    Jul
    Aug
    Sep
    Oct
    Nov
    Dec

    LessMore (max 42/day in 2023)

    2024

    Download PNG

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

    Jan
    Feb
    Mar
    Apr
    May
    Jun
    Jul
    Aug
    Sep
    Oct
    Nov
    Dec

    LessMore (max 56/day in 2024)

    2025

    Download PNG

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

    Jan
    Feb
    Mar
    Apr
    May
    Jun
    Jul
    Aug
    Sep
    Oct
    Nov
    Dec

    LessMore (max 49/day in 2025)

    +73
    1973
    2023-12-30 16:50Good Bye 20231952-91900
    2023-12-24 16:35Codeforces Round 917 (Div. 2)851-191909
    2023-09-24 16:35Educational Codeforces Round 155 (Rated for Div. 2)870-171928
    2023-09-10 16:35Codeforces Round 896 (Div. 1)589+321945
    2023-08-05 16:35Codeforces Round 890 (Div. 2) supported by Constructor Institute621+131913
    2023-01-15 15:05VK Cup 2022 - Отборочный раунд (Engine)146-381900
    2022-12-16 16:35Educational Codeforces Round 140 (Rated for Div. 2)798-271938