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Open on Codeforces · Unique solved

Rating2437· Grandmaster

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
45
Unique solved
866
Submissions (all)
2,336
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.

  • Unrated7
  • 800–89987
  • 900–99919
  • 1000–109927
  • 1100–119929
  • 1200–129917
  • 1300–139926

Solved by topic

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

  • math323
  • greedy313
  • dp256
  • data structures228
  • constructive algorithms195
  • brute force164
  • 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
2025-09-24 14:50Codeforces Round 1053 (Div. 1)118+812437
2025-07-31 17:35Codeforces Round 1040 (Div. 1)163+722356
2025-07-19 16:50Order Capital Round 1 (Codeforces Round 1038, Div. 1 + Div. 2)345+492284
2025-05-11 17:05Codeforces Round 1024 (Div. 1)242+502235
2025-04-26 11:35Codeforces Round 1021 (Div. 1)
1400–1499
28
  • 1500–159921
  • 1600–169924
  • 1700–179925
  • 1800–189936
  • 1900–199945
  • 2000–209936
  • 2100–219932
  • 2200–229930
  • 2300–239934
  • 2400–249950
  • 2500–259937
  • 2600–269938
  • 2700–279920
  • 2800–289926
  • 2900–299929
  • 3000–309932
  • 3100–319915
  • 3200–329926
  • 3300–339927
  • 3400–349910
  • 3500–359933
  • 145
  • combinatorics125
  • binary search125
  • trees120
  • graphs115
  • dfs and similar107
  • sortings105
  • bitmasks92
  • number theory83
  • strings65
  • two pointers59
  • divide and conquer57
  • dsu47
  • interactive39
  • probabilities30
  • hashing24
  • flows22
  • shortest paths21
  • games17
  • fft15
  • geometry14
  • string suffix structures13
  • Other (7 tags)46
  • 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 38/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 32/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 33/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 24/day in 2026)

    277
    +12
    2185
    2025-04-19 16:35Neowise Labs Contest 1 (Codeforces Round 1018, Div. 1 + Div. 2)675+22173
    2025-03-23 08:05Codeforces Round 1012 (Div. 1)320-52171
    2025-03-10 17:15Codeforces Round 1008 (Div. 1)190+1242176
    2024-12-03 08:25Codeforces Round 990 (Div. 1)210+1392052
    2024-02-17 17:35think-cell Round 12468-941913
    2024-02-15 16:35Codeforces Round 926 (Div. 2)969-532007
    2024-02-11 11:35Codeforces Round 924 (Div. 2)239+162060