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Top rated · Stats

jamesbamber

Open on Codeforces · Unique solved

Rating2205· 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
56
Unique solved
786
Submissions (all)
1,900
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.

  • Unrated128
  • 800–899117
  • 900–99925
  • 1000–109923
  • 1100–119933
  • 1200–129929
  • 1300–139942

Solved by topic

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

  • greedy337
  • math297
  • constructive algorithms202
  • implementation171
  • dp152
  • brute force145
  • data structures

Rating changes

2022

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

Jan
Feb
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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
2026-04-25 17:05Spectral::Cup 2026 Round 1 (Codeforces Round 1094, Div. 1 + Div. 2)647-392205
2025-12-19 17:05Codeforces Global Round 31 (Div. 1 + Div. 2)1175-922244
2025-11-16 16:35Codeforces Round 1064 (Div. 1)130+952336
2025-10-03 17:35Squarepoint Challenge (Codeforces Round 1055, Div. 1 + Div. 2)442+222241
2025-08-28 17:35Codeforces Round 1046 (Div. 1)
1400–1499
42
  • 1500–159919
  • 1600–169925
  • 1700–179949
  • 1800–189934
  • 1900–199938
  • 2000–209935
  • 2100–219932
  • 2200–229923
  • 2300–239927
  • 2400–249925
  • 2500–259919
  • 2600–26999
  • 2700–27999
  • 2800–28992
  • 3000–30991
  • 120
  • sortings119
  • binary search99
  • number theory76
  • dfs and similar75
  • graphs73
  • bitmasks66
  • combinatorics65
  • trees57
  • *special54
  • strings54
  • two pointers46
  • games41
  • interactive40
  • dsu31
  • divide and conquer21
  • geometry17
  • shortest paths15
  • hashing10
  • probabilities9
  • graph matchings7
  • communication6
  • Other (9 tags)33
  • 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 11/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
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    Dec

    LessMore (max 30/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 47/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 31/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 20/day in 2026)

    606
    -67
    2219
    2025-07-19 16:50Order Capital Round 1 (Codeforces Round 1038, Div. 1 + Div. 2)153+1362286
    2025-06-03 16:35Educational Codeforces Round 179 (Rated for Div. 2)59+862150
    2025-05-31 16:35Codeforces Round 1028 (Div. 1)724-492064
    2025-04-26 11:35Codeforces Round 1021 (Div. 1)354-42113
    2025-03-10 17:15Codeforces Round 1008 (Div. 1)601-402117
    2025-02-11 16:35Codeforces Round 1004 (Div. 1)403+302157
    2025-01-26 17:05Ethflow Round 1 (Codeforces Round 1001, Div. 1 + Div. 2)1607-702127