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_anodiebird

Open on Codeforces · Unique solved

Rating2301· International 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
38
Unique solved
441
Submissions (all)
986
Years with activity
2020–2026

Solved by problem rating

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

  • Unrated1
  • 800–89969
  • 900–99922
  • 1000–109919
  • 1100–119924
  • 1200–129919
  • 1300–139921

Solved by topic

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

  • greedy201
  • math198
  • constructive algorithms112
  • dp110
  • implementation105
  • brute force85
  • 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
2023-07-29 17:05Codeforces Round 889 (Div. 1)387-202301
2023-07-27 16:35Educational Codeforces Round 152 (Rated for Div. 2)1+2822321
2023-07-23 17:05Codeforces Round 887 (Div. 1)723-942039
2023-07-11 17:35Codeforces Round 884 (Div. 1 + Div. 2)701-72133
2023-06-24 17:05CodeTON Round 5 (Div. 1 + Div. 2, Rated, Prizes!)
1400–1499
23
  • 1500–159913
  • 1600–169921
  • 1700–179920
  • 1800–189924
  • 1900–199918
  • 2000–209915
  • 2100–219912
  • 2200–229921
  • 2300–239915
  • 2400–249917
  • 2500–259920
  • 2600–269915
  • 2700–279910
  • 2800–28996
  • 2900–29994
  • 3000–30997
  • 3100–31991
  • 3300–33993
  • 3400–34991
  • 79
  • sortings61
  • graphs57
  • binary search53
  • bitmasks43
  • dfs and similar42
  • trees42
  • combinatorics40
  • two pointers39
  • number theory37
  • strings35
  • dsu20
  • divide and conquer15
  • probabilities13
  • shortest paths13
  • games12
  • interactive12
  • hashing11
  • geometry10
  • fft8
  • flows5
  • graph matchings4
  • Other (7 tags)19
  • 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.

    2026

    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 34/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 31/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 1/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 26/day in 2023)

    2026

    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 15/day in 2026)

    585
    +9
    2140
    2023-06-18 16:35Codeforces Round 880 (Div. 1)428-52131
    2023-05-28 17:05Codeforces Round 875 (Div. 1)168+1382136
    2023-05-12 16:35Educational Codeforces Round 148 (Rated for Div. 2)1309-1001998
    2021-12-29 17:35Good Bye 2021: 2022 is NEAR912-82098
    2021-12-24 17:05Codeforces Global Round 181262-722106
    2021-12-11 12:05Codeforces Round 758 (Div.1 + Div. 2)210+762178
    2021-11-28 17:05Deltix Round, Autumn 2021 (open for everyone, rated, Div. 1 + Div. 2)1029-602102