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Top rated · Stats

kuviman

Open on Codeforces · Unique solved

Rating2250· 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
52
Unique solved
653
Submissions (all)
1,434
Years with activity
2010–2023

Solved by problem rating

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

  • Unrated421
  • 800–8999
  • 900–9995
  • 1000–109910
  • 1100–11997
  • 1200–12998
  • 1300–139910

Solved by topic

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

  • implementation73
  • greedy57
  • math54
  • dp51
  • data structures40
  • constructive algorithms34
  • binary search

Rating changes

2010

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

Jan
Feb
Mar
Apr
May

Submission volume

Download all years PNG

2010

Download PNG

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

Jan
Feb
Mar
Apr

Recent rated rounds

When (UTC)ContestRankΔNew
2016-05-07 18:05VK Cup 2016 - Round 352-612250
2016-04-29 18:35Codeforces Round 349 (Div. 1)113-182311
2016-04-24 18:35VK Cup 2016 - Round 222+492329
2016-03-28 18:35VK Cup 2016 - Round 154-112280
2016-02-04 19:05AIM Tech Round (Div. 1)365-106
1400–1499
17
  • 1500–159920
  • 1600–169921
  • 1700–179910
  • 1800–189917
  • 1900–199919
  • 2000–209917
  • 2100–219912
  • 2200–229914
  • 2300–23999
  • 2400–24998
  • 2500–25993
  • 2600–26995
  • 2700–27997
  • 2800–28991
  • 2900–29992
  • 3100–31991
  • 33
  • brute force31
  • sortings28
  • graphs24
  • dfs and similar22
  • *special14
  • trees14
  • combinatorics13
  • number theory12
  • shortest paths11
  • strings11
  • geometry10
  • bitmasks8
  • two pointers8
  • dsu8
  • probabilities5
  • flows3
  • divide and conquer2
  • matrices2
  • graph matchings2
  • string suffix structures2
  • interactive1
  • Other (3 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.

    2011

    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.

    2012

    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.

    2013

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

    Jan
    Feb
    Mar
    Apr
    May
    Jun
    Jul
    Aug
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    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.

    2014

    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.

    2015

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

    Jan
    Feb
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    Apr
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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.

    2016

    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.

    2017

    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.

    2018

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

    Jan
    Feb
    Mar
    Apr
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    Jun
    Jul
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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.

    2020

    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.

    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.

    2023

    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
    Jun
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    Aug
    Sep
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    Dec

    LessMore (max 8/day in 2010)

    2011

    Download PNG

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

    Jan
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    LessMore (max 5/day in 2011)

    2012

    Download PNG

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

    Jan
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    LessMore (max 21/day in 2012)

    2013

    Download PNG

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

    Jan
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    LessMore (max 34/day in 2013)

    2014

    Download PNG

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

    Jan
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    LessMore (max 46/day in 2014)

    2015

    Download PNG

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

    Jan
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    May
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    LessMore (max 27/day in 2015)

    2016

    Download PNG

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

    Jan
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    LessMore (max 37/day in 2016)

    2017

    Download PNG

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

    Jan
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    LessMore (max 1/day in 2017)

    2018

    Download PNG

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

    Jan
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    LessMore (max 2/day in 2018)

    2020

    Download PNG

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

    Jan
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    LessMore (max 3/day in 2020)

    2021

    Download PNG

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

    Jan
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    Jun
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    LessMore (max 8/day in 2021)

    2023

    Download PNG

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

    Jan
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    LessMore (max 15/day in 2023)

    2291
    2016-01-29 19:10Wunder Fund Round 2016 (Div. 1 + Div. 2 combined)52+832397
    2015-12-23 18:35Codeforces Round 336 (Div. 1)28+1562314
    2015-11-24 18:35Codeforces Round 333 (Div. 1)328-942158
    2015-10-25 11:00Codeforces Round 327 (Div. 1)220-792252
    2015-10-15 19:00Codeforces Round 326 (Div. 1)90+92331
    2015-10-03 18:45Codeforces Round 323 (Div. 1)325-682322
    2015-08-29 18:40Codeforces Round 318 [RussianCodeCup Thanks-Round] (Div. 1)74+732390