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fox_cat

Open on Codeforces · Unique solved

Rating2148· 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
21
Unique solved
149
Submissions (all)
336
Years with activity
2022–2025

Solved by problem rating

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

  • Unrated37
  • 800–89933
  • 900–9995
  • 1000–10996
  • 1100–119910
  • 1200–12997
  • 1300–13996

Solved by topic

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

  • greedy55
  • math50
  • constructive algorithms38
  • implementation23
  • brute force19
  • dp18
  • sortings

Rating changes

2022

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

Jan
Feb
Mar
Apr
May

Submission volume

Download all years PNG

2022

Download PNG

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

Jan
Feb
Mar
Apr

Recent rated rounds

When (UTC)ContestRankΔNew
2024-09-14 16:35Codeforces Round 972 (Div. 2)113+662148
2024-08-25 16:35Codeforces Round 968 (Div. 2)184+472082
2024-06-25 16:35Codeforces Round 955 (Div. 2, with prizes from NEAR!)218+482035
2024-01-06 17:05Hello 20241232+141987
2023-12-30 16:50Good Bye 20231107
1400–1499
11
  • 1500–15992
  • 1600–16995
  • 1700–17995
  • 1800–18994
  • 1900–19992
  • 2000–20993
  • 2100–21993
  • 2300–23992
  • 2400–24995
  • 2600–26991
  • 2700–27992
  • 17
  • data structures17
  • number theory14
  • strings11
  • combinatorics10
  • graphs9
  • binary search8
  • games8
  • trees7
  • dfs and similar7
  • dsu5
  • bitmasks5
  • two pointers4
  • interactive4
  • geometry4
  • divide and conquer4
  • probabilities2
  • shortest paths2
  • meet-in-the-middle1
  • hashing1
  • 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
    Nov
    Dec

    LessMore (max 26/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 27/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 14/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 10/day in 2025)

    +38
    1973
    2023-09-11 16:35Codeforces Round 897 (Div. 2)613+31935
    2023-06-04 16:45Codeforces Round 877 (Div. 2)374+371932
    2023-05-28 17:05Codeforces Round 875 (Div. 2)168+741895
    2023-05-08 14:05Codeforces Round 872 (Div. 2)120+1101821
    2023-04-09 17:00Codeforces Round 865 (Div. 2)326+861711
    2023-02-01 16:35Codeforces Round 848 (Div. 2)1665+31625
    2022-12-27 16:35Codeforces Round 841 (Div. 2) and Divide by Zero 20222238-241622