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HomuraCat

Open on Codeforces · Unique solved

Rating2120· 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
26
Unique solved
297
Submissions (all)
870
Years with activity
2021–2025

Solved by problem rating

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

  • Unrated192
  • 800–89920
  • 900–9994
  • 1000–10993
  • 1100–11996
  • 1200–12997
  • 1300–13994

Solved by topic

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

  • greedy54
  • math43
  • dp27
  • constructive algorithms26
  • implementation26
  • brute force26
  • data structures

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
2022-06-25 16:50Codeforces Global Round 21721+22120
2022-06-16 16:35Codeforces Round 800 (Div. 1)574-582118
2022-02-12 17:05Codeforces Global Round 19342+702176
2022-01-31 16:35Educational Codeforces Round 122 (Rated for Div. 2)122+472106
2022-01-30 16:35Codeforces Round 769 (Div. 2)96
1400–1499
6
  • 1500–15997
  • 1600–16996
  • 1700–17999
  • 1800–18995
  • 1900–19994
  • 2000–20995
  • 2100–21994
  • 2200–22994
  • 2300–23995
  • 2400–24991
  • 2500–25994
  • 2600–26991
  • 21
  • binary search15
  • sortings15
  • bitmasks14
  • number theory12
  • two pointers8
  • graphs7
  • dfs and similar7
  • combinatorics5
  • trees5
  • strings5
  • shortest paths4
  • divide and conquer3
  • interactive3
  • geometry3
  • games1
  • probabilities1
  • fft1
  • string suffix structures1
  • dsu1
  • matrices1
  • flows1
  • Other (2 tags)2
  • 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.

    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 35/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 34/day in 2022)

    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 25/day in 2025)

    +103
    2059
    2022-01-22 16:35Codeforces Round 767 (Div. 1)764-361956
    2022-01-15 16:35Codeforces Round 766 (Div. 2)381+81992
    2022-01-12 14:05Codeforces Round 765 (Div. 2)535-191984
    2022-01-03 16:50Hello 20221411-362003
    2021-12-29 17:35Good Bye 2021: 2022 is NEAR788+322039
    2021-12-28 15:35Codeforces Round 763 (Div. 2)239+312007
    2021-10-30 16:35Codeforces Round 752 (Div. 1)685-21976