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Gellyfish

Open on Codeforces · Unique solved

Rating2508· 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
45
Unique solved
595
Submissions (all)
1,674
Years with activity
2021–2024

Solved by problem rating

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

  • Unrated53
  • 800–89960
  • 900–9999
  • 1000–109914
  • 1100–119914
  • 1200–129918
  • 1300–139915

Solved by topic

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

  • dp204
  • greedy202
  • math189
  • implementation114
  • data structures111
  • constructive algorithms104

Rating changes

2021

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

Jan
Feb
Mar
Apr
May

Submission volume

Download all years PNG

2021

Download PNG

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

Jan
Feb
Mar
Apr

Recent rated rounds

When (UTC)ContestRankΔNew
2023-11-25 17:20CodeTON Round 7 (Div. 1 + Div. 2, Rated, Prizes!)186+62508
2023-11-07 16:35Codeforces Round 908 (Div. 1)363-802502
2023-10-08 11:35Codeforces Round 902 (Div. 1, based on COMPFEST 15 - Final Round)64+922582
2023-08-30 17:35Pinely Round 2 (Div. 1 + Div. 2)140+462490
2023-08-26 17:35Harbour.Space Scholarship Contest 2023-2024 (Div. 1 + Div. 2)
1400–1499
18
  • 1500–159926
  • 1600–169913
  • 1700–179923
  • 1800–189928
  • 1900–199925
  • 2000–209926
  • 2100–219930
  • 2200–229923
  • 2300–239920
  • 2400–249939
  • 2500–259924
  • 2600–269920
  • 2700–279923
  • 2800–289920
  • 2900–299914
  • 3000–30999
  • 3100–31997
  • 3200–329913
  • 3300–33996
  • 3400–34992
  • 3500–35993
  • brute force
    97
  • sortings82
  • combinatorics77
  • graphs71
  • dfs and similar60
  • binary search55
  • bitmasks51
  • strings49
  • number theory49
  • trees41
  • two pointers34
  • games25
  • dsu24
  • probabilities20
  • geometry18
  • divide and conquer17
  • fft16
  • shortest paths13
  • hashing12
  • flows11
  • *special10
  • matrices9
  • Other (9 tags)36
  • 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.

    May
    Jun
    Jul
    Aug
    Sep
    Oct
    Nov
    Dec

    LessMore (max 18/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 187/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 31/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 40/day in 2024)

    143
    +51
    2444
    2023-03-09 12:35Codeforces Round 857 (Div. 1)246-162393
    2023-02-27 17:35Codeforces Round 854 by cybercats (Div. 1 + Div. 2)305-242409
    2023-02-05 15:05Codeforces Round 850 (Div. 1, based on VK Cup 2022 - Final Round)169+392433
    2023-01-15 15:05Codeforces Round 844 (Div. 1 + Div. 2, based on VK Cup 2022 - Elimination Round)67+1522394
    2022-10-23 09:50Codeforces Round 829 (Div. 1)364+52242
    2022-10-15 16:50Codeforces Global Round 23408+362237
    2022-10-07 17:05Dytechlab Cup 2022669-402201