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anodiebird

Open on Codeforces · Unique solved

Rating2303· 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
79
Unique solved
1,435
Submissions (all)
3,801
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.

  • Unrated301
  • 800–899124
  • 900–99939
  • 1000–109941
  • 1100–119938
  • 1200–129943
  • 1300–139939

Solved by topic

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

  • greedy491
  • math414
  • constructive algorithms361
  • implementation274
  • dp265
  • data structures232

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
2022-11-20 17:05Pinely Round 1 (Div. 1 + Div. 2)258+292303
2022-11-06 17:05CodeTON Round 3 (Div. 1 + Div. 2, Rated, Prizes!)338+182274
2022-10-29 11:55Codeforces Round 831 (Div. 1 + Div. 2)131+882256
2022-10-15 16:50Codeforces Global Round 231298-822168
2022-10-07 17:05Dytechlab Cup 2022543
1400–1499
45
  • 1500–159952
  • 1600–169952
  • 1700–179959
  • 1800–189948
  • 1900–199964
  • 2000–209952
  • 2100–219957
  • 2200–229979
  • 2300–239956
  • 2400–249963
  • 2500–259950
  • 2600–269938
  • 2700–279932
  • 2800–289921
  • 2900–299915
  • 3000–309910
  • 3100–31995
  • 3200–32997
  • 3300–33991
  • 3400–34991
  • 3500–35993
  • brute force
    228
  • sortings169
  • binary search166
  • graphs141
  • dfs and similar135
  • number theory118
  • two pointers105
  • combinatorics101
  • bitmasks97
  • trees97
  • strings73
  • dsu55
  • divide and conquer41
  • shortest paths40
  • interactive36
  • games35
  • geometry33
  • hashing25
  • probabilities19
  • matrices17
  • flows13
  • fft12
  • Other (8 tags)54
  • 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.

    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 54/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 67/day in 2021)

    2022

    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 40/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
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    Dec

    LessMore (max 4/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
    Nov
    Dec

    LessMore (max 6/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 18/day in 2025)

    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 1/day in 2026)

    -30
    2250
    2022-09-30 17:05Codeforces Global Round 22388+122280
    2022-07-31 16:35CodeTON Round 2 (Div. 1 + Div. 2, Rated, Prizes!)677-362268
    2022-07-16 16:35Codeforces Round 808 (Div. 1)203+462304
    2022-06-25 16:50Codeforces Global Round 21476+52258
    2022-06-16 16:35Codeforces Round 800 (Div. 1)215+622253
    2022-06-03 16:35Codeforces Round 796 (Div. 1)359-92191
    2022-05-25 19:50Codeforces Round 794 (Div. 1)306-342200