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Top rated · Stats

brianlee.lck

Open on Codeforces · Unique solved

Rating2172· 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
28
Unique solved
158
Submissions (all)
449
Years with activity
2019–2023

Solved by problem rating

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

  • Unrated51
  • 800–89915
  • 900–9995
  • 1000–10995
  • 1100–11996
  • 1200–12996
  • 1300–13996

Solved by topic

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

  • greedy55
  • math49
  • constructive algorithms39
  • implementation31
  • brute force26
  • dp17
  • data structures

Rating changes

2019

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

Jan
Feb
Mar
Apr
May

Submission volume

Download all years PNG

2019

Download PNG

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

Jan
Feb
Mar
Apr

Recent rated rounds

When (UTC)ContestRankΔNew
2023-07-29 17:05Codeforces Round 889 (Div. 1)439+62172
2022-01-03 16:50Hello 2022721-72166
2021-12-29 17:35Good Bye 2021: 2022 is NEAR485+432173
2021-10-17 13:20Codeforces Round 749 (Div. 1 + Div. 2, based on Technocup 2022 Elimination Round 1)547+122130
2021-05-02 17:35Codeforces Global Round 14
1400–1499
7
  • 1500–159911
  • 1600–16995
  • 1700–17998
  • 1800–18996
  • 1900–19997
  • 2000–20994
  • 2100–21992
  • 2200–22999
  • 2300–23991
  • 2400–24991
  • 2600–26993
  • 17
  • sortings17
  • two pointers12
  • number theory11
  • graphs10
  • strings9
  • bitmasks8
  • geometry6
  • dfs and similar6
  • trees6
  • binary search6
  • combinatorics5
  • games4
  • interactive3
  • dsu3
  • graph matchings2
  • shortest paths2
  • divide and conquer1
  • 2-sat1
  • 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.

    2020

    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.

    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 8/day in 2019)

    2020

    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 18/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 28/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 15/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 12/day in 2023)

    692
    +16
    2118
    2020-10-17 15:35Codeforces Raif Round 1 (Div. 1 + Div. 2)2506-1372102
    2020-09-30 17:20Grakn Forces 2020701-312239
    2020-08-30 16:35Codeforces Round 666 (Div. 1)428-72270
    2020-08-25 16:35Educational Codeforces Round 94 (Rated for Div. 2)4+2492277
    2020-08-21 16:35Codeforces Round 665 (Div. 2)83+1392028
    2020-08-09 16:35Codeforces Round 663 (Div. 2)373+791889
    2020-07-29 16:35Educational Codeforces Round 92 (Rated for Div. 2)960+461810