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Top rated · Stats

joww

Open on Codeforces · Unique solved

Rating2274· 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
58
Unique solved
931
Submissions (all)
2,130
Years with activity
2022–2026

Solved by problem rating

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

  • Unrated122
  • 800–899203
  • 900–99940
  • 1000–109947
  • 1100–119949
  • 1200–129936
  • 1300–139944

Solved by topic

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

  • greedy364
  • math330
  • implementation255
  • constructive algorithms202
  • brute force194
  • dp157
  • data structures

Rating changes

2022

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

Jan
Feb
Mar
Apr
May

Submission volume

Download all years PNG

2022

Download PNG

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

Jan
Feb
Mar
Apr

Recent rated rounds

When (UTC)ContestRankΔNew
2024-04-06 17:35Codeforces Global Round 25544-102274
2024-02-17 17:35think-cell Round 1251+552284
2024-01-27 16:45Codeforces Round 921 (Div. 1)211+862229
2023-11-07 16:35Codeforces Round 908 (Div. 1)589-412143
2023-10-08 11:35Codeforces Round 902 (Div. 1, based on COMPFEST 15 - Final Round)657
1400–1499
49
  • 1500–159933
  • 1600–169941
  • 1700–179944
  • 1800–189941
  • 1900–199940
  • 2000–209925
  • 2100–219923
  • 2200–229921
  • 2300–239924
  • 2400–249925
  • 2500–25998
  • 2600–26996
  • 2700–27993
  • 2800–28994
  • 2900–29991
  • 3000–30991
  • 3400–34991
  • 153
  • sortings137
  • binary search103
  • strings87
  • number theory82
  • dfs and similar74
  • two pointers74
  • combinatorics65
  • graphs62
  • bitmasks61
  • trees50
  • dsu32
  • games23
  • divide and conquer21
  • geometry20
  • shortest paths18
  • hashing18
  • interactive13
  • probabilities11
  • *special7
  • string suffix structures5
  • meet-in-the-middle4
  • Other (9 tags)25
  • 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.

    2025

    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.

    2026

    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 39/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 48/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 76/day in 2024)

    2025

    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 2025)

    2026

    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 2026)

    -59
    2184
    2023-07-29 17:05Codeforces Round 889 (Div. 1)252+592243
    2023-07-23 17:05Codeforces Round 887 (Div. 1)361-22184
    2023-07-11 17:35Codeforces Round 884 (Div. 1 + Div. 2)278+772186
    2023-06-24 17:05CodeTON Round 5 (Div. 1 + Div. 2, Rated, Prizes!)599+182109
    2023-06-18 16:35Codeforces Round 880 (Div. 1)550-352091
    2023-05-14 16:35Codeforces Round 873 (Div. 1)256+802126
    2023-05-08 14:05Codeforces Round 872 (Div. 1)756-942046