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Open on Codeforces · Unique solved

Rating2542· Grandmaster

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
22
Unique solved
272
Submissions (all)
526
Years with activity
2013–2023

Solved by problem rating

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

  • Unrated10
  • 800–89919
  • 900–9999
  • 1000–10995
  • 1100–11999
  • 1200–129913
  • 1300–139911

Solved by topic

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

  • math91
  • implementation86
  • greedy66
  • dp47
  • brute force41
  • data structures35
  • constructive algorithms

Rating changes

2013

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

Jan
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May

Submission volume

Download all years PNG

2013

Download PNG

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

Jan
Feb
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Apr

Recent rated rounds

When (UTC)ContestRankΔNew
2018-06-16 19:05Codeforces Round 488 by NEAR (Div. 1)47+52542
2018-05-15 16:45Codeforces Round 483 (Div. 1) [Thanks, Botan Investments and Victor Shaburov!]53+142537
2018-04-29 15:45Codeforces Round 477 (rated, Div. 1, based on VK Cup 2018 Round 3)31+612523
2018-04-17 16:05Tinkoff Internship Warmup Round 2018 and Codeforces Round 475 (Div. 1)75-132462
2018-04-07 18:35
1400–1499
12
  • 1500–159920
  • 1600–169921
  • 1700–179919
  • 1800–189917
  • 1900–199910
  • 2000–209916
  • 2100–219916
  • 2200–229916
  • 2300–23997
  • 2400–249911
  • 2500–25997
  • 2600–26995
  • 2700–27995
  • 2800–28995
  • 2900–29994
  • 3000–30991
  • 3100–31991
  • 3200–32991
  • 3400–34992
  • 32
  • graphs32
  • sortings31
  • dfs and similar29
  • trees27
  • combinatorics24
  • binary search23
  • number theory18
  • geometry16
  • strings16
  • *special10
  • bitmasks8
  • dsu8
  • games8
  • probabilities7
  • shortest paths6
  • matrices5
  • two pointers5
  • divide and conquer4
  • fft4
  • interactive3
  • flows2
  • Other (7 tags)11
  • Jun
    Jul
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    Sep
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    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
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    Apr
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    Jun
    Jul
    Aug
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    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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    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
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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.

    2017

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

    Jan
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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
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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.

    2019

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

    Jan
    Feb
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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
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    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
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    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
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    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.

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    LessMore (max 13/day in 2013)

    2014

    Download PNG

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

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    LessMore (max 8/day in 2014)

    2015

    Download PNG

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

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    2016

    Download PNG

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

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    2017

    Download PNG

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

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    2018

    Download PNG

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

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    2019

    Download PNG

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

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    2020

    Download PNG

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

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    2022

    Download PNG

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

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    LessMore (max 2/day in 2022)

    2023

    Download PNG

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

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    LessMore (max 14/day in 2023)

    Divide by Zero 2018 and Codeforces Round 474 (Div. 1 + Div. 2, combined)
    33
    +77
    2475
    2017-08-18 17:05Codeforces Round 429 (Div. 1)56+622398
    2017-07-11 18:45Codeforces Round 423 (Div. 1, rated, based on VK Cup Finals)42+1022336
    2016-12-30 16:45Good Bye 20161150-1122234
    2016-06-08 18:35Codeforces Round 356 (Div. 1)39+1272346
    2016-04-29 18:35Codeforces Round 349 (Div. 1)145-172219
    2015-06-27 16:10Codeforces Round 310 (Div. 1)160+652236
    2014-06-13 18:00Zepto Code Rush 2014219-182171