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Worteltje

Open on Codeforces · Unique solved

Rating2588· 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
70
Unique solved
651
Submissions (all)
1,717
Years with activity
2018–2025

Solved by problem rating

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

  • Unrated141
  • 800–89949
  • 900–99919
  • 1000–109922
  • 1100–119921
  • 1200–129922
  • 1300–139924

Solved by topic

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

  • math184
  • greedy181
  • implementation154
  • constructive algorithms109
  • data structures87
  • dp86
  • brute force

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
2025-09-20 17:35Codeforces Global Round 29 (Div. 1 + Div. 2)270-312588
2023-06-24 17:05CodeTON Round 5 (Div. 1 + Div. 2, Rated, Prizes!)493-1222619
2023-06-18 16:35Codeforces Round 880 (Div. 1)291-1342741
2023-03-31 16:35CodeTON Round 4 (Div. 1 + Div. 2, Rated, Prizes!)37+482875
2022-10-07 17:05Dytechlab Cup 2022
1400–1499
21
  • 1500–159926
  • 1600–169935
  • 1700–179931
  • 1800–189927
  • 1900–199936
  • 2000–209923
  • 2100–219919
  • 2200–229920
  • 2300–239921
  • 2400–249929
  • 2500–259912
  • 2600–269915
  • 2700–279913
  • 2800–289910
  • 2900–29996
  • 3000–30993
  • 3100–31993
  • 3200–32991
  • 3300–33992
  • 84
  • graphs73
  • binary search70
  • sortings69
  • dfs and similar50
  • number theory49
  • trees42
  • bitmasks36
  • strings33
  • two pointers28
  • combinatorics27
  • geometry24
  • dsu24
  • interactive24
  • shortest paths16
  • games15
  • probabilities13
  • *special13
  • divide and conquer12
  • hashing10
  • matrices9
  • ternary search7
  • Other (7 tags)19
  • Jun
    Jul
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    Sep
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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
    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
    Aug
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    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
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    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
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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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    Dec

    LessMore (max 49/day in 2018)

    2019

    Download PNG

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

    Jan
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    LessMore (max 35/day in 2019)

    2020

    Download PNG

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

    Jan
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    LessMore (max 30/day in 2020)

    2021

    Download PNG

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

    Jan
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    LessMore (max 48/day in 2021)

    2022

    Download PNG

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

    Jan
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    LessMore (max 52/day in 2022)

    2023

    Download PNG

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

    Jan
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    LessMore (max 35/day in 2023)

    2024

    Download PNG

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

    Jan
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    Jun
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    LessMore (max 36/day in 2024)

    2025

    Download PNG

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

    Jan
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    Jun
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    LessMore (max 14/day in 2025)

    89
    -27
    2827
    2022-07-16 16:35Codeforces Round 808 (Div. 1)104-702854
    2022-06-25 16:50Codeforces Global Round 2182-332924
    2022-06-03 16:35Codeforces Round 796 (Div. 1)23+582957
    2022-03-20 13:50Codeforces Round 778 (Div. 1 + Div. 2, based on Technocup 2022 Final Round)37+232899
    2022-01-27 16:35Codeforces Round 768 (Div. 1)31+522876
    2022-01-03 16:50Hello 2022127-402824
    2021-12-29 17:35Good Bye 2021: 2022 is NEAR111-342864