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Top rated · Stats

uhiaoku

Open on Codeforces · Unique solved

Rating2310· 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
38
Unique solved
1,155
Submissions (all)
2,859
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.

  • Unrated274
  • 800–899123
  • 900–99942
  • 1000–109954
  • 1100–119943
  • 1200–129955
  • 1300–139952

Solved by topic

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

  • greedy320
  • math306
  • implementation299
  • constructive algorithms174
  • brute force156
  • dp130
  • sortings

Rating changes

2017

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

2017

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 - Финал36+372310
2020-10-25 13:05Technocup 2021 - Elimination Round 123+682273
2020-06-07 16:50Codeforces Round 648 (Div. 2)7+2442205
2020-06-04 17:05Codeforces Round 647 (Div. 1) - Thanks, Algo Muse!820-211961
2020-03-01 13:10Технокубок 2020 - Финал106
1400–1499
57
  • 1500–159956
  • 1600–169960
  • 1700–179953
  • 1800–189940
  • 1900–199949
  • 2000–209938
  • 2100–219939
  • 2200–229924
  • 2300–239918
  • 2400–249926
  • 2500–259915
  • 2600–269916
  • 2700–279912
  • 2800–28996
  • 2900–29991
  • 3000–30991
  • 3200–32991
  • 118
  • data structures117
  • binary search93
  • graphs80
  • dfs and similar78
  • strings70
  • number theory66
  • trees53
  • two pointers52
  • bitmasks40
  • combinatorics33
  • dsu28
  • interactive19
  • shortest paths19
  • geometry19
  • divide and conquer19
  • games16
  • hashing15
  • ternary search11
  • *special10
  • flows9
  • graph matchings9
  • Other (8 tags)26
  • 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.

    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
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    Sep
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    Dec

    LessMore (max 5/day in 2017)

    2018

    Download PNG

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

    Jan
    Feb
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    Jun
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    LessMore (max 85/day in 2018)

    2019

    Download PNG

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

    Jan
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    May
    Jun
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    LessMore (max 44/day in 2019)

    2020

    Download PNG

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

    Jan
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    Jun
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    LessMore (max 42/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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    LessMore (max 55/day in 2021)

    2022

    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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    LessMore (max 40/day in 2022)

    +39
    1982
    2019-12-14 13:05Codeforces Round 606 (Div. 2, based on Technocup 2020 Elimination Round 4)66+931943
    2019-11-24 10:05Technocup 2020 - Elimination Round 382+241850
    2019-11-19 16:35Codeforces Round 601 (Div. 2)236+621826
    2019-10-26 13:05Technocup 2020 - Elimination Round 2286-71764
    2019-05-15 16:35Educational Codeforces Round 65 (Rated for Div. 2)1296-531771
    2019-05-12 16:35Codeforces Round 559 (Div. 2)119+801824
    2019-05-09 17:05Codeforces Round 558 (Div. 2)550+301744