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woolim

Open on Codeforces · Unique solved

Rating2198· 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
32
Unique solved
217
Submissions (all)
781
Years with activity
2019–2022

Solved by problem rating

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

  • Unrated53
  • 800–89944
  • 900–99910
  • 1000–109915
  • 1100–119912
  • 1200–129910
  • 1300–139911

Solved by topic

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

  • greedy74
  • math73
  • implementation44
  • constructive algorithms41
  • brute force38
  • sortings30
  • dp

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
2022-03-04 17:35Codeforces Round 774 (Div. 2)6+2102198
2022-02-22 16:35Educational Codeforces Round 123 (Rated for Div. 2)69+1301988
2022-02-20 16:35Codeforces Round 772 (Div. 2)692-11858
2022-02-14 16:35Codeforces Round 771 (Div. 2)4414-1481859
2022-02-06 17:05Codeforces Round 770 (Div. 2)637
1400–1499
9
  • 1500–15997
  • 1600–16996
  • 1700–17998
  • 1800–18998
  • 1900–19999
  • 2000–20998
  • 2100–21992
  • 2200–22992
  • 2300–23991
  • 2400–24992
  • 24
  • binary search19
  • data structures19
  • number theory13
  • two pointers12
  • bitmasks10
  • strings9
  • graphs6
  • dfs and similar6
  • dsu6
  • trees4
  • combinatorics3
  • interactive3
  • shortest paths3
  • geometry2
  • probabilities2
  • matrices1
  • games1
  • hashing1
  • divide and conquer1
  • flows1
  • graph matchings1
  • Other (2 tags)2
  • 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.

    May
    Jun
    Jul
    Aug
    Sep
    Oct
    Nov
    Dec

    LessMore (max 20/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 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 13/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 236/day in 2022)

    -20
    2007
    2022-01-31 16:35Educational Codeforces Round 122 (Rated for Div. 2)92+972027
    2022-01-30 16:35Codeforces Round 769 (Div. 2)679+21930
    2022-01-27 16:35Codeforces Round 768 (Div. 2)62+1381928
    2022-01-22 16:35Codeforces Round 767 (Div. 2)2358-741790
    2022-01-15 16:35Codeforces Round 766 (Div. 2)770-41864
    2022-01-12 14:05Codeforces Round 765 (Div. 2)1139-451868
    2022-01-03 16:50Hello 2022437+1451913