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Peco

Open on Codeforces · Unique solved

Rating2190· 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
6
Unique solved
33
Submissions (all)
88
Years with activity
2020–2023

Solved by problem rating

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

  • 800–8992
  • 900–9993
  • 1000–10991
  • 1100–11993
  • 1200–12992
  • 1300–13991
  • 1400–14992

Solved by topic

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

  • constructive algorithms18
  • greedy16
  • math16
  • implementation8
  • dp7
  • graphs5
  • number theory

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
2023-07-23 17:05Codeforces Round 887 (Div. 1)85+2182190
2020-11-17 16:50Codeforces Round 684 (Div. 1)858-811972
2020-10-18 11:05Codeforces Round 676 (Div. 2)255+212053
2020-09-12 15:45Codeforces Round 670 (Div. 2)197+712032
2020-09-08 16:35Codeforces Round 669 (Div. 2)7
1500–1599
1
  • 1600–16991
  • 1700–17993
  • 1800–18993
  • 1900–19992
  • 2200–22993
  • 2300–23991
  • 2400–24991
  • 2500–25992
  • 2600–26991
  • 2800–28991
  • 5
  • brute force5
  • sortings4
  • data structures4
  • bitmasks3
  • two pointers2
  • binary search2
  • strings2
  • shortest paths2
  • interactive2
  • dfs and similar2
  • games1
  • geometry1
  • combinatorics1
  • trees1
  • 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.

    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 13/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 19/day in 2021)

    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 8/day in 2023)

    +381
    1961
    2020-04-03 16:35Codeforces Round 631 (Div. 2) - Thanks, Denis aramis Shitov!1403+15801580