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Top rated · Stats

2018ljw

Open on Codeforces · Unique solved

Rating2206· 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
24
Unique solved
514
Submissions (all)
1,135
Years with activity
2021–2024

Solved by problem rating

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

  • Unrated3
  • 800–89943
  • 900–9996
  • 1000–109914
  • 1100–119912
  • 1200–12997
  • 1300–13998

Solved by topic

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

  • dp199
  • greedy169
  • data structures157
  • math134
  • dfs and similar93
  • implementation92
  • trees

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
2023-07-11 17:35Codeforces Round 884 (Div. 1 + Div. 2)346+472206
2023-04-15 11:05Codeforces Round 866 (Div. 1)674-1132159
2023-03-12 16:35Nebius Welcome Round (Div. 1 + Div. 2)185+982272
2023-02-09 16:35Codeforces Round 851 (Div. 2)37+1052174
2023-01-29 17:35TypeDB Forces 2023 (Div. 1 + Div. 2, Rated, Prizes!)
1400–1499
12
  • 1500–159912
  • 1600–169920
  • 1700–179923
  • 1800–189921
  • 1900–199954
  • 2000–209951
  • 2100–219936
  • 2200–229936
  • 2300–239929
  • 2400–249941
  • 2500–259926
  • 2600–269924
  • 2700–27994
  • 2800–289910
  • 2900–29998
  • 3000–30999
  • 3100–31992
  • 3200–32991
  • 3300–33991
  • 3400–34991
  • 90
  • brute force82
  • constructive algorithms81
  • graphs66
  • binary search61
  • combinatorics46
  • sortings44
  • number theory41
  • two pointers35
  • dsu34
  • strings31
  • bitmasks31
  • probabilities30
  • divide and conquer29
  • games17
  • shortest paths15
  • string suffix structures13
  • hashing11
  • matrices8
  • flows8
  • interactive6
  • geometry6
  • Other (7 tags)15
  • 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.

    2024

    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 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 23/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 34/day in 2023)

    2024

    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 7/day in 2024)

    481
    +64
    2069
    2023-01-21 16:35Codeforces Round 845 (Div. 2) and ByteRace 2023296+42005
    2023-01-03 17:05Hello 2023420+1212001
    2022-12-30 17:05Good Bye 2022: 2023 is NEAR450+1801880
    2022-09-02 16:35Codeforces Round 818 (Div. 2)3918-1131700
    2022-08-27 16:35Educational Codeforces Round 134 (Rated for Div. 2)1449-471813
    2022-08-16 16:35Codeforces Round 814 (Div. 2)903-311860
    2022-08-13 16:50Codeforces Round 813 (Div. 2)570+311891