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Top rated · Stats

A_fan_of_zhoukangyang

Open on Codeforces · Unique solved

Rating2292· 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
11
Unique solved
58
Submissions (all)
101
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.

  • 800–8997
  • 900–9992
  • 1000–10995
  • 1100–11991
  • 1200–12992
  • 1300–13991
  • 1400–1499

Solved by topic

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

  • greedy28
  • math20
  • constructive algorithms17
  • implementation14
  • dp13
  • data structures13
  • brute force

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
2022-03-20 13:50Codeforces Round 778 (Div. 1 + Div. 2, based on Technocup 2022 Final Round)274+372292
2022-02-23 12:10Codeforces Round 773 (Div. 1)199+782255
2021-04-23 17:20Contest 2050 and Codeforces Round 718 (Div. 1 + Div. 2)857-312177
2021-04-03 16:50Codeforces Round 712 (Div. 1)282+542208
2021-03-21 15:35Codeforces Round 709 (Div. 1, based on Technocup 2021 Final Round)
3
  • 1500–15991
  • 1600–16994
  • 1700–17996
  • 1800–18991
  • 1900–19992
  • 2000–20993
  • 2100–21993
  • 2200–22993
  • 2300–23992
  • 2400–24991
  • 2600–26992
  • 2700–27991
  • 2800–28991
  • 2900–29992
  • 3000–30991
  • 3100–31991
  • 3300–33991
  • 3400–34991
  • 3500–35991
  • 12
  • sortings10
  • strings9
  • binary search8
  • bitmasks6
  • graphs6
  • number theory6
  • dfs and similar6
  • combinatorics4
  • two pointers4
  • trees4
  • interactive3
  • dsu3
  • hashing3
  • divide and conquer2
  • geometry2
  • shortest paths2
  • games2
  • string suffix structures2
  • matrices1
  • 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.

    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.

    May
    Jun
    Jul
    Aug
    Sep
    Oct
    Nov
    Dec

    LessMore (max 10/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 9/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 6/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 3/day in 2023)

    410
    +11
    2154
    2021-01-29 16:35Educational Codeforces Round 103 (Rated for Div. 2)75+1452143
    2021-01-19 16:35Codeforces Round 696 (Div. 2)194+1551998
    2021-01-14 16:35Educational Codeforces Round 102 (Rated for Div. 2)227+2071843
    2020-12-28 16:35Educational Codeforces Round 101 (Rated for Div. 2)52+4561636
    2020-11-21 16:50Codeforces Round 685 (Div. 2)267+5231180
    2020-10-24 16:15Codeforces Round 678 (Div. 2)559+657657