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TosakaUCW

Open on Codeforces · Unique solved

Rating2183· 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
25
Unique solved
921
Submissions (all)
2,203
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.

  • Unrated225
  • 800–899105
  • 900–99927
  • 1000–109924
  • 1100–119939
  • 1200–129945
  • 1300–139933

Solved by topic

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

  • greedy338
  • math292
  • constructive algorithms183
  • dp180
  • implementation174
  • brute force170
  • data structures

Rating changes

2018

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

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
2025-11-28 16:35Educational Codeforces Round 185 (Rated for Div. 2)17+1542183
2025-10-30 19:35Pinely Round 5 (Div. 1 + Div. 2)597-32029
2025-08-28 17:35Codeforces Round 1046 (Div. 1)531+162032
2021-11-14 08:20Codeforces Round 755 (Div. 1, based on Technocup 2022 Elimination Round 2)391+72016
2021-10-24 12:35Codeforces Round 750 (Div. 2)
1400–1499
27
  • 1500–159935
  • 1600–169943
  • 1700–179947
  • 1800–189928
  • 1900–199947
  • 2000–209934
  • 2100–219934
  • 2200–229932
  • 2300–239928
  • 2400–249915
  • 2500–259921
  • 2600–269913
  • 2700–27998
  • 2800–28997
  • 2900–29992
  • 3000–30991
  • 3200–32991
  • 145
  • binary search99
  • dfs and similar96
  • graphs89
  • sortings88
  • number theory85
  • trees71
  • two pointers63
  • bitmasks54
  • combinatorics54
  • strings42
  • dsu29
  • interactive29
  • games28
  • shortest paths24
  • divide and conquer23
  • geometry15
  • *special12
  • hashing11
  • probabilities10
  • ternary search9
  • matrices7
  • Other (9 tags)32
  • 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
    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.

    2023

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

    Jan
    Feb
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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.

    2024

    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.

    2025

    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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    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 12/day in 2018)

    2019

    Download PNG

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

    Jan
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    LessMore (max 30/day in 2019)

    2020

    Download PNG

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

    Jan
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    LessMore (max 26/day in 2020)

    2021

    Download PNG

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

    Jan
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    Jun
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    LessMore (max 27/day in 2021)

    2023

    Download PNG

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

    Jan
    Feb
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    May
    Jun
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    LessMore (max 9/day in 2023)

    2024

    Download PNG

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

    Jan
    Feb
    Mar
    Apr
    May
    Jun
    Jul
    Aug
    Sep
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    LessMore (max 24/day in 2024)

    2025

    Download PNG

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

    Jan
    Feb
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    May
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    LessMore (max 188/day in 2025)

    255
    +21
    2009
    2021-10-17 13:20Codeforces Round 749 (Div. 1 + Div. 2, based on Technocup 2022 Elimination Round 1)460+841988
    2021-05-02 17:35Codeforces Global Round 14729+871904
    2021-02-23 11:05Codeforces Round 704 (Div. 2)3165-1141817
    2020-11-29 09:05Codeforces Round 687 (Div. 2, based on Technocup 2021 Elimination Round 2)18+2081931
    2020-11-01 13:05Codeforces Round 680 (Div. 2, based on Moscow Team Olympiad)61+2231723
    2020-10-25 13:05Codeforces Round 679 (Div. 2, based on Technocup 2021 Elimination Round 1)155+2691500
    2020-08-21 16:35Codeforces Round 665 (Div. 2)7983-381231