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oceeff

Open on Codeforces · Unique solved

Rating2336· 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
30
Unique solved
815
Submissions (all)
1,805
Years with activity
2021–2026

Solved by problem rating

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

  • Unrated32
  • 800–89964
  • 900–99917
  • 1000–109918
  • 1100–119929
  • 1200–129918
  • 1300–139924

Solved by topic

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

  • math298
  • greedy274
  • dp241
  • constructive algorithms185
  • data structures174
  • implementation142

Rating changes

2021

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

2021

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)267+162336
2025-12-06 10:15Codeforces Round 1069 (Div. 1)450-842320
2025-11-16 16:35Codeforces Round 1064 (Div. 1)151+492404
2025-07-19 16:50Order Capital Round 1 (Codeforces Round 1038, Div. 1 + Div. 2)800-652355
2024-10-27 17:35Codeforces Global Round 27
1400–1499
20
  • 1500–159925
  • 1600–169930
  • 1700–179935
  • 1800–189931
  • 1900–199952
  • 2000–209948
  • 2100–219932
  • 2200–229928
  • 2300–239943
  • 2400–249948
  • 2500–259938
  • 2600–269933
  • 2700–279930
  • 2800–289924
  • 2900–299925
  • 3000–309912
  • 3100–319916
  • 3200–329914
  • 3300–339913
  • 3400–34998
  • 3500–35998
  • brute force
    136
  • binary search101
  • sortings101
  • graphs99
  • number theory95
  • combinatorics90
  • trees89
  • dfs and similar82
  • bitmasks70
  • two pointers57
  • strings54
  • dsu37
  • probabilities37
  • divide and conquer36
  • hashing26
  • shortest paths23
  • games21
  • geometry20
  • interactive19
  • matrices16
  • flows14
  • fft12
  • Other (8 tags)38
  • 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.

    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
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    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
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    Dec

    LessMore (max 50/day in 2021)

    2022

    Download PNG

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

    Jan
    Feb
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    May
    Jun
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    LessMore (max 22/day in 2022)

    2023

    Download PNG

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

    Jan
    Feb
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    May
    Jun
    Jul
    Aug
    Sep
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    Dec

    LessMore (max 20/day in 2023)

    2024

    Download PNG

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

    Jan
    Feb
    Mar
    Apr
    May
    Jun
    Jul
    Aug
    Sep
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    Dec

    LessMore (max 24/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 13/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 13/day in 2026)

    122
    +96
    2420
    2024-08-11 17:35EPIC Institute of Technology Round August 2024 (Div. 1 + Div. 2)148+1202324
    2024-07-28 17:35Pinely Round 4 (Div. 1 + Div. 2)526+222204
    2024-06-09 17:35Codeforces Global Round 26143+1742182
    2024-06-06 16:35Codeforces Round 951 (Div. 2)1623-872008
    2024-04-30 17:05Codeforces Round 942 (Div. 1)360+862095
    2023-01-08 16:35Educational Codeforces Round 141 (Rated for Div. 2)10+2682009
    2023-01-05 16:35Codeforces Round 842 (Div. 2)1168+101741