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sulvshuo

Open on Codeforces · Unique solved

Rating2152· 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
11
Unique solved
171
Submissions (all)
911
Years with activity
2018–2024

Solved by problem rating

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

  • Unrated42
  • 800–8996
  • 900–9994
  • 1000–10992
  • 1200–12993
  • 1300–13992
  • 1400–14996

Solved by topic

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

  • math52
  • greedy48
  • data structures34
  • constructive algorithms31
  • dp29
  • binary search24
  • sortings

Rating changes

2018

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

Jan
Feb
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Apr
May

Submission volume

Download all years PNG

2018

Download PNG

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

Jan
Feb
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Apr

Recent rated rounds

When (UTC)ContestRankΔNew
2024-09-27 16:05Codeforces Round 975 (Div. 1)557-72152
2024-02-29 16:35Codeforces Round 930 (Div. 1)346+202159
2024-01-27 16:45Codeforces Round 921 (Div. 1)264+952139
2023-11-25 17:20CodeTON Round 7 (Div. 1 + Div. 2, Rated, Prizes!)391+952044
2023-11-07 16:35Codeforces Round 908 (Div. 1)578
1500–1599
2
  • 1600–16993
  • 1700–17997
  • 1800–18992
  • 1900–19997
  • 2000–20993
  • 2100–21993
  • 2200–22995
  • 2300–23994
  • 2400–24996
  • 2500–25993
  • 2600–26997
  • 2700–27993
  • 2800–28993
  • 2900–29995
  • 3000–309911
  • 3100–31994
  • 3200–32997
  • 3300–33993
  • 3400–34992
  • 3500–359916
  • 23
  • graphs23
  • implementation19
  • brute force17
  • two pointers15
  • dfs and similar13
  • combinatorics12
  • trees11
  • number theory11
  • divide and conquer9
  • bitmasks9
  • shortest paths7
  • strings7
  • interactive5
  • dsu4
  • geometry4
  • 2-sat3
  • flows3
  • fft3
  • matrices2
  • graph matchings2
  • hashing2
  • Other (3 tags)3
  • 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.

    2019

    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.

    2020

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

    Jan
    Feb
    Mar
    Apr
    May
    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.

    2021

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

    Jan
    Feb
    Mar
    Apr
    May
    Jun
    Jul
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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
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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
    Mar
    Apr
    May
    Jun
    Jul
    Aug
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    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.

    2024

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

    Jan
    Feb
    Mar
    Apr
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    Jun
    Jul
    Aug
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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 23/day in 2018)

    2019

    Download PNG

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

    Jan
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    LessMore (max 10/day in 2019)

    2020

    Download PNG

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

    Jan
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    LessMore (max 22/day in 2020)

    2021

    Download PNG

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

    Jan
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    LessMore (max 18/day in 2021)

    2022

    Download PNG

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

    Jan
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    LessMore (max 20/day in 2022)

    2023

    Download PNG

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

    Jan
    Feb
    Mar
    Apr
    May
    Jun
    Jul
    Aug
    Sep
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    Dec

    LessMore (max 18/day in 2023)

    2024

    Download PNG

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

    Jan
    Feb
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    Jun
    Jul
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    LessMore (max 16/day in 2024)

    +29
    1949
    2023-10-22 13:05Codeforces Round 905 (Div. 2)166+851920
    2023-09-18 16:50CodeTON Round 6 (Div. 1 + Div. 2, Rated, Prizes!)526+1541835
    2022-03-20 13:50Codeforces Round 778 (Div. 1 + Div. 2, based on Technocup 2022 Final Round)757+1311681
    2022-02-23 12:10Codeforces Round 773 (Div. 2)1938-191550
    2020-11-01 13:05Codeforces Round 680 (Div. 2, based on Moscow Team Olympiad)377+1381569
    2019-11-27 15:50Educational Codeforces Round 77 (Rated for Div. 2)3764+14311431