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Derzeed

Open on Codeforces · Unique solved

Rating2220· 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
77
Unique solved
472
Submissions (all)
904
Years with activity
2017–2022

Solved by problem rating

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

  • Unrated49
  • 800–89960
  • 900–99918
  • 1000–109924
  • 1100–119919
  • 1200–129928
  • 1300–139927

Solved by topic

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

  • greedy198
  • math162
  • implementation129
  • constructive algorithms107
  • dp92
  • brute force77
  • data structures

Rating changes

2017

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

Jan
Feb
Mar
Apr
May

Submission volume

Download all years PNG

2017

Download PNG

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

Jan
Feb
Mar
Apr

Recent rated rounds

When (UTC)ContestRankΔNew
2022-10-15 16:50Codeforces Global Round 23512+152220
2022-09-25 16:35Codeforces Round 823 (Div. 2)26+1102205
2022-07-21 16:35Educational Codeforces Round 132 (Rated for Div. 2)58+1122095
2022-07-04 16:35Codeforces Round 804 (Div. 2)118+1051983
2022-05-14 11:35Codeforces Round 791 (Div. 2)1598
1400–1499
27
  • 1500–159924
  • 1600–169931
  • 1700–179934
  • 1800–189924
  • 1900–199929
  • 2000–209916
  • 2100–219924
  • 2200–229912
  • 2300–239910
  • 2400–249910
  • 2500–25992
  • 2600–26993
  • 2700–27991
  • 69
  • sortings68
  • binary search45
  • graphs39
  • strings36
  • *special32
  • two pointers31
  • bitmasks31
  • number theory29
  • dfs and similar27
  • trees24
  • combinatorics20
  • geometry17
  • games13
  • dsu12
  • shortest paths11
  • interactive9
  • ternary search8
  • divide and conquer8
  • hashing7
  • graph matchings3
  • matrices2
  • Other (2 tags)3
  • 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.

    2018

    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.

    2019

    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.

    2020

    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.

    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
    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 5/day in 2017)

    2018

    Download PNG

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

    Jan
    Feb
    Mar
    Apr
    May
    Jun
    Jul
    Aug
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    Dec

    LessMore (max 11/day in 2018)

    2019

    Download PNG

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

    Jan
    Feb
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    May
    Jun
    Jul
    Aug
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    LessMore (max 22/day in 2019)

    2020

    Download PNG

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

    Jan
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    May
    Jun
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    LessMore (max 21/day in 2020)

    2021

    Download PNG

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

    Jan
    Feb
    Mar
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    May
    Jun
    Jul
    Aug
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    LessMore (max 8/day in 2021)

    2022

    Download PNG

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

    Jan
    Feb
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    May
    Jun
    Jul
    Aug
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    Dec

    LessMore (max 18/day in 2022)

    -89
    1878
    2022-04-19 16:35Codeforces Round 783 (Div. 1)708-551967
    2022-03-20 13:50Codeforces Round 778 (Div. 1 + Div. 2, based on Technocup 2022 Final Round)894-142022
    2022-01-31 16:35Educational Codeforces Round 122 (Rated for Div. 2)418-162036
    2021-12-12 17:15Codeforces Round 759 (Div. 2, based on Technocup 2022 Elimination Round 3)153+312052
    2021-11-14 08:20Codeforces Round 755 (Div. 1, based on Technocup 2022 Elimination Round 2)603-972021
    2021-10-30 16:35Codeforces Round 752 (Div. 1)564-112118
    2021-10-25 08:35Codeforces Round 751 (Div. 1)301+162129