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buyolitsez

Open on Codeforces · Unique solved

Rating2288· 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
47
Unique solved
662
Submissions (all)
2,039
Years with activity
2018–2024

Solved by problem rating

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

  • Unrated201
  • 800–899108
  • 900–99934
  • 1000–109944
  • 1100–119929
  • 1200–129934
  • 1300–139943

Solved by topic

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

  • implementation197
  • math146
  • greedy139
  • brute force78
  • dp62
  • graphs57
  • constructive algorithms

Rating changes

2018

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

Jan
Feb
Mar
Apr
May

Submission volume

Download all years PNG

2018

Download PNG

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

Jan
Feb
Mar
Apr

Recent rated rounds

When (UTC)ContestRankΔNew
2021-03-21 13:20Технокубок 2021 - Финал9+1662288
2020-11-17 16:50Codeforces Round 684 (Div. 2)4+2682122
2020-11-15 17:05Codeforces Round 683 (Div. 2, by Meet IT)257+391854
2020-10-25 13:05Technocup 2021 - Elimination Round 1123+841815
2020-09-19 16:35Codeforces Round 671 (Div. 2)1565
1400–1499
25
  • 1500–159939
  • 1600–169921
  • 1700–179922
  • 1800–189916
  • 1900–199918
  • 2000–20998
  • 2100–21999
  • 2200–22994
  • 2300–23991
  • 2400–24993
  • 2500–25991
  • 2600–26991
  • 2700–27991
  • 56
  • data structures53
  • dfs and similar52
  • sortings46
  • strings43
  • binary search38
  • number theory29
  • two pointers25
  • *special22
  • dsu22
  • trees19
  • shortest paths12
  • combinatorics9
  • bitmasks8
  • hashing8
  • divide and conquer7
  • games6
  • probabilities5
  • geometry4
  • graph matchings2
  • meet-in-the-middle2
  • interactive2
  • Other (5 tags)5
  • 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.

    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.

    May
    Jun
    Jul
    Aug
    Sep
    Oct
    Nov
    Dec

    LessMore (max 18/day in 2018)

    2019

    Download PNG

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

    Jan
    Feb
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    Apr
    May
    Jun
    Jul
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    Sep
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    LessMore (max 43/day in 2019)

    2020

    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 35/day in 2020)

    2021

    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 112/day in 2021)

    2022

    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 9/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
    Nov
    Dec

    LessMore (max 19/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 33/day in 2024)

    -3
    1731
    2020-09-06 16:35Codeforces Round 668 (Div. 2)451+851734
    2020-05-17 11:20Educational Codeforces Round 87 (Rated for Div. 2)5345-881649
    2020-05-16 13:35Codeforces Round 643 (Div. 2)2297-71737
    2020-04-08 16:35Codeforces Round 632 (Div. 2)2488-141744
    2020-03-03 16:50Ozon Tech Challenge 2020 (Div.1 + Div.2, Rated, T-shirts + prizes!)1571+221758
    2020-03-01 13:10Технокубок 2020 - Финал190+651736
    2019-12-05 16:35Codeforces Round 604 (Div. 2)768+311671