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Capitan

Open on Codeforces · Unique solved

Rating2124· 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
33
Unique solved
2,423
Submissions (all)
5,796
Years with activity
2015–2023

Solved by problem rating

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

  • Unrated1,130
  • 800–899150
  • 900–99955
  • 1000–109976
  • 1100–119955
  • 1200–129949
  • 1300–139950

Solved by topic

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

  • implementation398
  • math379
  • greedy362
  • dp302
  • data structures245
  • brute force214
  • 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
2021-04-23 17:20Contest 2050 and Codeforces Round 718 (Div. 1 + Div. 2)730+52124
2020-09-19 16:35Codeforces Round 671 (Div. 2)186+372119
2020-08-16 17:35Codeforces Global Round 10896-82082
2020-05-01 17:05Codeforces Round 638 (Div. 2)21+2242090
2020-04-23 17:15Codeforces Round 637 (Div. 2) - Thanks, Ivan Belonogov!
1400–1499
36
  • 1500–159939
  • 1600–169937
  • 1700–179938
  • 1800–189931
  • 1900–199933
  • 2000–209927
  • 2100–219942
  • 2200–2299165
  • 2300–2399162
  • 2400–2499169
  • 2500–259967
  • 2600–26993
  • 2700–27995
  • 2800–28991
  • 2900–29992
  • 3000–30991
  • 205
  • graphs170
  • sortings162
  • dfs and similar152
  • binary search145
  • trees120
  • strings108
  • number theory105
  • combinatorics91
  • bitmasks83
  • two pointers73
  • dsu63
  • divide and conquer39
  • geometry38
  • shortest paths36
  • probabilities34
  • hashing34
  • games23
  • interactive23
  • flows19
  • matrices17
  • string suffix structures16
  • Other (9 tags)64
  • 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
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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
    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.

    2018

    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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    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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    Apr
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    Jun
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    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.

    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.

    2023

    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
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    Dec

    LessMore (max 8/day in 2015)

    2016

    Download PNG

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

    Jan
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    LessMore (max 42/day in 2016)

    2017

    Download PNG

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

    Jan
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    LessMore (max 61/day in 2017)

    2018

    Download PNG

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

    Jan
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    LessMore (max 33/day in 2018)

    2019

    Download PNG

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

    Jan
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    LessMore (max 50/day in 2019)

    2020

    Download PNG

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

    Jan
    Feb
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    Jun
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    LessMore (max 62/day in 2020)

    2021

    Download PNG

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

    Jan
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    LessMore (max 49/day in 2021)

    2022

    Download PNG

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

    Jan
    Feb
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    Jun
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    LessMore (max 54/day in 2022)

    2023

    Download PNG

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

    Jan
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    Jun
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    LessMore (max 15/day in 2023)

    393
    +79
    1866
    2020-04-12 16:05Codeforces Round 633 (Div. 2)538+671787
    2020-04-10 16:35Educational Codeforces Round 85 (Rated for Div. 2)1198+721720
    2019-01-22 16:35Codeforces Round 534 (Div. 2)2610-761648
    2019-01-13 16:35Codeforces Round 532 (Div. 2)944+31724
    2019-01-05 19:05Codeforces Round 530 (Div. 2)508+381721
    2019-01-04 17:45Hello 20191163+711683
    2018-12-28 16:35Educational Codeforces Round 57 (Rated for Div. 2)1913-381612