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Smaug

Open on Codeforces · Unique solved

Rating2286· 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
103
Unique solved
1,768
Submissions (all)
4,429
Years with activity
2015–2021

Solved by problem rating

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

  • Unrated36
  • 800–899104
  • 900–99965
  • 1000–109986
  • 1100–119985
  • 1200–129994
  • 1300–1399103

Solved by topic

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

  • implementation580
  • math417
  • dp408
  • greedy367
  • data structures275
  • brute force269
  • constructive algorithms

Rating changes

2015

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

Jan
Feb
Mar
Apr
May

Submission volume

Download all years PNG

2015

Download PNG

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

Jan
Feb
Mar
Apr

Recent rated rounds

When (UTC)ContestRankΔNew
2019-07-20 18:05Codeforces Global Round 4197+292286
2019-07-05 17:05Codeforces Round 572 (Div. 1)197-92257
2019-06-21 19:05Codeforces Round 569 (Div. 1)136+222266
2019-05-04 19:05Codeforces Round 557 (Div. 1) [based on Forethought Future Cup - Final Round]127+212244
2019-04-29 16:35Codeforces Round 556 (Div. 1)
1400–1499
102
  • 1500–1599125
  • 1600–1699136
  • 1700–1799101
  • 1800–189986
  • 1900–199993
  • 2000–2099103
  • 2100–219980
  • 2200–229973
  • 2300–239960
  • 2400–249964
  • 2500–259946
  • 2600–269927
  • 2700–279930
  • 2800–289920
  • 2900–299918
  • 3000–30996
  • 3100–319911
  • 3200–32997
  • 3300–33992
  • 3400–34992
  • 3500–35993
  • 236
  • graphs235
  • dfs and similar205
  • sortings170
  • trees156
  • binary search149
  • strings148
  • number theory137
  • combinatorics113
  • dsu80
  • bitmasks67
  • two pointers65
  • shortest paths58
  • games38
  • hashing38
  • geometry33
  • probabilities30
  • divide and conquer27
  • *special23
  • matrices21
  • flows20
  • graph matchings14
  • Other (8 tags)60
  • 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.

    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
    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.

    May
    Jun
    Jul
    Aug
    Sep
    Oct
    Nov
    Dec

    LessMore (max 20/day in 2015)

    2016

    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 31/day in 2016)

    2017

    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 30/day in 2017)

    2018

    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 29/day in 2018)

    2019

    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 47/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
    Nov
    Dec

    LessMore (max 5/day in 2020)

    2021

    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 2/day in 2021)

    103
    +112
    2223
    2019-02-24 17:35Codeforces Round 542 [Alex Lopashev Thanks-Round] (Div. 1)334-702111
    2019-01-26 17:35Educational Codeforces Round 59 (Rated for Div. 2)14+1372181
    2019-01-22 16:35Codeforces Round 534 (Div. 1)432-762044
    2018-12-30 17:15Good Bye 2018897-342120
    2018-12-28 16:35Educational Codeforces Round 57 (Rated for Div. 2)33+992154
    2018-12-23 15:35Codeforces Round 528 (Div. 1, based on Technocup 2019 Elimination Round 4)519-1122055
    2018-12-16 17:05Avito Cool Challenge 2018173+512167