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Kratrissa

Open on Codeforces · Unique solved

Rating2450· 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
13
Unique solved
82
Submissions (all)
122
Years with activity
2022–2023

Solved by problem rating

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

  • 800–89914
  • 900–9993
  • 1000–10992
  • 1100–11992
  • 1200–12992
  • 1300–13994
  • 1400–14995

Solved by topic

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

  • greedy44
  • constructive algorithms31
  • math31
  • implementation23
  • data structures21
  • brute force20

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
2023-10-22 13:05Codeforces Round 905 (Div. 1)342-742450
2023-10-08 11:35Codeforces Round 902 (Div. 1, based on COMPFEST 15 - Final Round)151+192524
2022-07-16 16:35Codeforces Round 808 (Div. 1)122+312505
2022-06-25 16:50Codeforces Global Round 21234+102474
2022-06-03 16:35Codeforces Round 796 (Div. 1)
1500–1599
3
  • 1600–16996
  • 1700–17996
  • 1900–19999
  • 2000–20993
  • 2100–21995
  • 2200–22993
  • 2300–23991
  • 2400–24992
  • 2500–25994
  • 2600–26994
  • 2700–27991
  • 3000–30991
  • 3200–32991
  • 3400–34991
  • sortings
    18
  • binary search16
  • graphs13
  • dfs and similar12
  • dp8
  • two pointers7
  • number theory7
  • bitmasks7
  • strings7
  • combinatorics5
  • shortest paths4
  • dsu4
  • trees4
  • divide and conquer3
  • interactive3
  • games3
  • graph matchings1
  • chinese remainder theorem1
  • 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.

    May
    Jun
    Jul
    Aug
    Sep
    Oct
    Nov
    Dec

    LessMore (max 12/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 9/day in 2023)

    203
    -21
    2464
    2022-05-19 16:35Codeforces Round 792 (Div. 1 + Div. 2)77+1022485
    2022-05-08 16:35Codeforces Round 789 (Div. 1)163+422383
    2022-04-23 17:05Codeforces Global Round 20120+1872341
    2022-04-19 16:35Codeforces Round 783 (Div. 1)262+1572154
    2022-04-17 16:50Codeforces Round 782 (Div. 2)102+1911997
    2022-04-09 16:35Educational Codeforces Round 126 (Rated for Div. 2)27+4021806
    2022-04-08 16:35Codeforces Round 781 (Div. 2)15+6031404