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248926

Open on Codeforces · Unique solved

Rating2322· International 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
19
Unique solved
192
Submissions (all)
521
Years with activity
2016–2024

Solved by problem rating

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

  • Unrated12
  • 800–8996
  • 900–9995
  • 1000–10994
  • 1100–11994
  • 1200–12999
  • 1300–13998

Solved by topic

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

  • dp63
  • implementation52
  • data structures44
  • brute force40
  • math39
  • greedy37
  • binary search

Rating changes

2016

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

Jan
Feb
Mar
Apr
May

Submission volume

Download all years PNG

2016

Download PNG

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

Jan
Feb
Mar
Apr

Recent rated rounds

When (UTC)ContestRankΔNew
2019-08-18 15:55Codeforces Round 580 (Div. 1)400-822322
2018-02-15 16:35ICM Technex 2018 and Codeforces Round 463 (Div. 1 + Div. 2, combined)49+792404
2017-11-17 16:35Codeforces Round 446 (Div. 1)384-1432325
2017-10-16 13:05Codeforces Round 441 (Div. 1, by Moscow Team Olympiad)41+412468
2017-10-15 10:05Codeforces Round 440 (Div. 1, based on Technocup 2018 Elimination Round 2)
1400–1499
9
  • 1500–15998
  • 1600–169910
  • 1700–17994
  • 1800–18998
  • 1900–19999
  • 2000–20998
  • 2100–21996
  • 2200–229913
  • 2300–239914
  • 2400–24998
  • 2500–259917
  • 2600–26999
  • 2700–27995
  • 2800–28994
  • 2900–29994
  • 3000–30994
  • 3100–31993
  • 3200–32991
  • 25
  • graphs23
  • dfs and similar22
  • strings18
  • sortings17
  • constructive algorithms15
  • bitmasks15
  • number theory13
  • trees13
  • combinatorics10
  • two pointers9
  • hashing8
  • dsu7
  • divide and conquer5
  • probabilities5
  • shortest paths4
  • matrices4
  • geometry4
  • expression parsing4
  • fft3
  • string suffix structures3
  • 2-sat2
  • Other (6 tags)8
  • 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
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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.

    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.

    2024

    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
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    Dec

    LessMore (max 17/day in 2016)

    2017

    Download PNG

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

    Jan
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    LessMore (max 16/day in 2017)

    2018

    Download PNG

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

    Jan
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    LessMore (max 27/day in 2018)

    2019

    Download PNG

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

    Jan
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    LessMore (max 6/day in 2019)

    2020

    Download PNG

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

    Jan
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    Jun
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    LessMore (max 1/day in 2020)

    2022

    Download PNG

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

    Jan
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    LessMore (max 3/day in 2022)

    2023

    Download PNG

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

    Jan
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    Jun
    Jul
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    LessMore (max 5/day in 2023)

    2024

    Download PNG

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

    Jan
    Feb
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    May
    Jun
    Jul
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    Sep
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    Dec

    LessMore (max 5/day in 2024)

    6
    +177
    2427
    2017-10-05 10:05Codeforces Round 438 by Sberbank and Barcelona Bootcamp (Div. 1 + Div. 2 combined)277-612250
    2017-09-24 17:05Manthan, Codefest 1795+382311
    2017-08-18 17:05Codeforces Round 429 (Div. 1)22+2192273
    2017-05-13 11:35Tinkoff Challenge - Final Round (Codeforces Round 414, rated, Div. 1 + Div. 2)929-1302054
    2017-05-11 17:35Playrix Codescapes Cup (Codeforces Round 413, rated, Div. 1 + Div. 2)389-362184
    2017-02-26 10:05Codeforces Round 402 (Div. 1)117+162220
    2017-02-23 16:55ICM Technex 2017 and Codeforces Round 400 (Div. 1 + Div. 2, combined)154+592204