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Tohsaka_Sakura

Open on Codeforces · Unique solved

Rating2214· 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
31
Unique solved
180
Submissions (all)
514
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.

  • Unrated13
  • 800–89920
  • 900–9998
  • 1000–10998
  • 1100–11995
  • 1200–129915
  • 1300–139911

Solved by topic

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

  • greedy74
  • math70
  • implementation51
  • constructive algorithms43
  • brute force41
  • dp40
  • data structures

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
2021-03-21 15:35Codeforces Round 709 (Div. 1, based on Technocup 2021 Final Round)388-22214
2021-03-13 11:35Codeforces Round 707 (Div. 1, based on Moscow Open Olympiad in Informatics)241+352216
2021-03-10 14:05Codeforces Round 706 (Div. 1)296+742181
2020-12-30 17:35Good Bye 20201101-132107
2020-11-29 09:05Codeforces Round 687 (Div. 1, based on Technocup 2021 Elimination Round 2)
1400–1499
10
  • 1500–159911
  • 1600–16998
  • 1700–17999
  • 1800–189910
  • 1900–199914
  • 2000–209911
  • 2100–21997
  • 2200–22993
  • 2300–23995
  • 2400–24991
  • 2500–25994
  • 2600–26991
  • 2800–28992
  • 2900–29991
  • 3000–30992
  • 3200–32991
  • 34
  • sortings28
  • binary search27
  • graphs15
  • two pointers15
  • number theory15
  • dfs and similar13
  • bitmasks13
  • trees11
  • strings8
  • combinatorics7
  • games7
  • dsu6
  • divide and conquer6
  • geometry6
  • ternary search4
  • shortest paths4
  • hashing3
  • string suffix structures1
  • flows1
  • chinese remainder theorem1
  • interactive1
  • Other (1 tag)1
  • 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
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    Dec

    LessMore (max 20/day in 2020)

    2021

    Download PNG

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

    Jan
    Feb
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    May
    Jun
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    Aug
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    LessMore (max 11/day in 2021)

    2022

    Download PNG

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

    Jan
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    May
    Jun
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    LessMore (max 17/day in 2022)

    2023

    Download PNG

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

    Jan
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    May
    Jun
    Jul
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    LessMore (max 6/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
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    Dec

    LessMore (max 7/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 19/day in 2025)

    280
    +68
    2120
    2020-11-01 13:05Codeforces Round 680 (Div. 1, based on Moscow Team Olympiad)640-352052
    2020-10-25 13:05Codeforces Round 679 (Div. 1, based on Technocup 2021 Elimination Round 1)529-332087
    2020-09-27 17:05Codeforces Round 673 (Div. 1)660-472120
    2020-09-24 16:35Codeforces Round 672 (Div. 2)1+3722167
    2020-09-19 16:35Codeforces Round 671 (Div. 2)1678-311795
    2020-09-08 16:35Codeforces Round 669 (Div. 2)2455-611826
    2020-09-06 16:35Codeforces Round 668 (Div. 1)1005-511887