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aberter0x3f

Open on Codeforces · Unique solved

Rating2186· 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
24
Unique solved
386
Submissions (all)
1,163
Years with activity
2020–2025

Solved by problem rating

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

  • Unrated37
  • 800–89942
  • 900–99913
  • 1000–109913
  • 1100–119910
  • 1200–12998
  • 1300–139911

Solved by topic

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

  • data structures121
  • math106
  • greedy100
  • dp86
  • constructive algorithms68
  • implementation60
  • brute force

Rating changes

2020

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

Jan
Feb
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May

Submission volume

Download all years PNG

2020

Download PNG

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

Jan
Feb
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Apr

Recent rated rounds

When (UTC)ContestRankΔNew
2023-10-22 13:05Codeforces Round 905 (Div. 2)108+92186
2023-10-22 09:05Codeforces Round 904 (Div. 2)24+1342177
2022-11-12 16:35Codeforces Round 833 (Div. 2)217+202043
2022-11-04 16:35Codeforces Round 832 (Div. 2)273+192023
2022-10-29 11:55Codeforces Round 831 (Div. 1 + Div. 2)1142
1400–1499
19
  • 1500–15999
  • 1600–169911
  • 1700–17995
  • 1800–18995
  • 1900–199918
  • 2000–209917
  • 2100–219910
  • 2200–229918
  • 2300–239918
  • 2400–249920
  • 2500–259912
  • 2600–269915
  • 2700–279917
  • 2800–289913
  • 2900–29998
  • 3000–309913
  • 3100–31998
  • 3200–32997
  • 3300–33996
  • 3400–34991
  • 3500–35992
  • 56
  • binary search52
  • number theory41
  • trees40
  • graphs36
  • dfs and similar34
  • sortings33
  • bitmasks26
  • strings24
  • combinatorics23
  • divide and conquer23
  • two pointers18
  • dsu16
  • shortest paths14
  • probabilities10
  • hashing10
  • string suffix structures10
  • geometry8
  • interactive8
  • flows8
  • matrices7
  • games6
  • Other (7 tags)16
  • Jun
    Jul
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    Sep
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    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.

    2021

    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.

    2022

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

    Jan
    Feb
    Mar
    Apr
    May
    Jun
    Jul
    Aug
    Sep
    Oct
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    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
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    Jun
    Jul
    Aug
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    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
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    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
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    Dec

    LessMore (max 17/day in 2020)

    2021

    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 39/day in 2021)

    2022

    Download PNG

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

    Jan
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    May
    Jun
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    LessMore (max 28/day in 2022)

    2023

    Download PNG

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

    Jan
    Feb
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    May
    Jun
    Jul
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    LessMore (max 32/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
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    Dec

    LessMore (max 15/day in 2024)

    2025

    Download PNG

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

    Jan
    Feb
    Mar
    Apr
    May
    Jun
    Jul
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    Sep
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    Dec

    LessMore (max 2/day in 2025)

    -71
    2004
    2022-07-08 16:35Educational Codeforces Round 131 (Rated for Div. 2)218+172075
    2022-03-20 13:50Codeforces Round 778 (Div. 1 + Div. 2, based on Technocup 2022 Final Round)439+662058
    2022-02-23 12:10Codeforces Round 773 (Div. 2)41+1191992
    2021-10-29 16:35Educational Codeforces Round 116 (Rated for Div. 2)790-41873
    2021-09-05 16:35Codeforces Round 742 (Div. 2)135+1471877
    2021-05-07 16:50Codeforces Round 720 (Div. 2)2677-501730
    2021-04-29 16:35Educational Codeforces Round 108 (Rated for Div. 2)2327-651780