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Top rated · Stats

JoeyJ

Open on Codeforces · Unique solved

Rating2387· International 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
34
Unique solved
216
Submissions (all)
581
Years with activity
2023–2026

Solved by problem rating

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

  • 800–89928
  • 900–9998
  • 1000–10997
  • 1100–11996
  • 1200–129915
  • 1300–13998
  • 1400–149913

Solved by topic

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

  • math98
  • greedy97
  • data structures60
  • dp52
  • brute force49
  • constructive algorithms48
  • implementation

Rating changes

2023

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

Jan
Feb
Mar
Apr
May

Submission volume

Download all years PNG

2023

Download PNG

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

Jan
Feb
Mar
Apr

Recent rated rounds

When (UTC)ContestRankΔNew
2026-01-17 17:35Codeforces Round 1073 (Div. 1)79+1392387
2025-09-24 14:50Codeforces Round 1053 (Div. 1)373+52248
2025-09-20 17:35Codeforces Global Round 29 (Div. 1 + Div. 2)148+1552243
2025-08-28 17:35Codeforces Round 1046 (Div. 1)800-812088
2025-08-07 17:35Atto Round 1 (Codeforces Round 1041, Div. 1 + Div. 2)
1500–1599
5
  • 1600–16998
  • 1700–179915
  • 1800–18996
  • 1900–199910
  • 2000–209911
  • 2100–219914
  • 2200–22998
  • 2300–23999
  • 2400–24999
  • 2500–25997
  • 2600–26999
  • 2700–27995
  • 2800–28994
  • 2900–29994
  • 3000–30994
  • 3100–31993
  • 39
  • sortings30
  • binary search29
  • number theory27
  • bitmasks26
  • graphs23
  • trees21
  • combinatorics20
  • strings19
  • dfs and similar17
  • games15
  • dsu11
  • probabilities11
  • two pointers11
  • divide and conquer9
  • hashing9
  • shortest paths9
  • geometry6
  • interactive5
  • string suffix structures3
  • 2-sat3
  • matrices2
  • Other (4 tags)7
  • 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 14/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 20/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 21/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 7/day in 2026)

    606
    +8
    2169
    2025-07-19 16:50Order Capital Round 1 (Codeforces Round 1038, Div. 1 + Div. 2)408+752161
    2025-07-05 16:35Codeforces Round 1035 (Div. 2)122+832086
    2025-04-26 11:35Codeforces Round 1021 (Div. 1)443-202003
    2025-02-11 16:35Codeforces Round 1004 (Div. 1)920-832023
    2025-01-26 17:05Ethflow Round 1 (Codeforces Round 1001, Div. 1 + Div. 2)2177-1022106
    2025-01-20 17:35IAEPC Preliminary Contest (Codeforces Round 999, Div. 1 + Div. 2)538+22208
    2024-12-28 17:35Good Bye 2024: 2025 is NEAR1121-522206