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Laakeri

Open on Codeforces · Unique solved

Rating2449· 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
106
Unique solved
880
Submissions (all)
2,405
Years with activity
2013–2019

Solved by problem rating

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

  • Unrated166
  • 800–89925
  • 900–99917
  • 1000–109920
  • 1100–119925
  • 1200–129932
  • 1300–139926

Solved by topic

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

  • implementation219
  • math182
  • dp175
  • greedy171
  • data structures141
  • brute force119
  • dfs and similar

Rating changes

2013

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

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
2019-06-07 14:05Codeforces Round 564 (Div. 1)283-1022449
2017-12-29 18:10Good Bye 2017292-972551
2017-09-30 20:05MemSQL Start[c]UP 3.0 - Round 2 and Codeforces Round 437 (Div. 1)10+1422648
2017-06-17 16:35Codeforces Round 419 (Div. 1)171-732506
2017-05-13 11:35Tinkoff Challenge - Final Round (Codeforces Round 414, rated, Div. 1 + Div. 2)
1400–1499
37
  • 1500–159940
  • 1600–169962
  • 1700–179950
  • 1800–189939
  • 1900–199948
  • 2000–209944
  • 2100–219939
  • 2200–229957
  • 2300–239937
  • 2400–249937
  • 2500–259923
  • 2600–269912
  • 2700–27995
  • 2800–289911
  • 2900–29997
  • 3000–309913
  • 3100–31994
  • 3200–32993
  • 3300–33991
  • 104
  • constructive algorithms101
  • graphs95
  • binary search76
  • sortings75
  • trees68
  • strings56
  • number theory48
  • combinatorics46
  • dsu42
  • two pointers30
  • geometry29
  • bitmasks29
  • divide and conquer25
  • hashing20
  • shortest paths19
  • probabilities18
  • games16
  • string suffix structures11
  • matrices9
  • flows6
  • *special6
  • Other (9 tags)29
  • 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.

    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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    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.

    2016

    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
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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.

    2017

    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.

    2019

    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
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    Dec

    LessMore (max 12/day in 2013)

    2014

    Download PNG

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

    Jan
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    LessMore (max 24/day in 2014)

    2015

    Download PNG

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

    Jan
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    LessMore (max 28/day in 2015)

    2016

    Download PNG

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

    Jan
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    LessMore (max 33/day in 2016)

    2017

    Download PNG

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

    Jan
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    LessMore (max 32/day in 2017)

    2019

    Download PNG

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

    Jan
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    LessMore (max 3/day in 2019)

    63
    +0
    2579
    2017-05-11 17:35Playrix Codescapes Cup (Codeforces Round 413, rated, Div. 1 + Div. 2)48+392579
    2017-05-07 18:45Codeforces Round 412 (rated, Div. 1, based on VK Cup 2017 Round 3)60+22540
    2017-04-16 17:35Codeforces Round 409 (rated, Div. 1, based on VK Cup 2017 Round 2)87-782538
    2017-03-29 18:05Codeforces Round 407 (Div. 1)122-922616
    2017-03-23 17:05Codeforces Round 406 (Div. 1)37-132708
    2017-03-18 17:35Codeforces Round 405 (rated, Div. 1, based on VK Cup 2017 Round 1)2+2412721
    2017-03-05 15:05Codeforces Round 403 (Div. 1, based on Technocup 2017 Finals)182-952480