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Septimelon

Open on Codeforces · Unique solved

Rating2301· 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
88
Unique solved
1,389
Submissions (all)
2,997
Years with activity
2017–2026

Solved by problem rating

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

  • Unrated706
  • 800–89986
  • 900–99933
  • 1000–109935
  • 1100–119929
  • 1200–129939
  • 1300–139942

Solved by topic

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

  • greedy319
  • math251
  • implementation213
  • constructive algorithms183
  • dp137
  • brute force120
  • data structures

Rating changes

2017

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

Jan
Feb
Mar
Apr
May

Submission volume

Download all years PNG

2017

Download PNG

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

Jan
Feb
Mar
Apr

Recent rated rounds

When (UTC)ContestRankΔNew
2024-04-27 16:35Codeforces Round 941 (Div. 1)728-862301
2023-09-30 17:35Codeforces Round 901 (Div. 1)636-1082387
2023-03-12 16:35Nebius Welcome Round (Div. 1 + Div. 2)208+42495
2023-02-05 15:05Codeforces Round 850 (Div. 1, based on VK Cup 2022 - Final Round)499-1072491
2023-01-29 17:35TypeDB Forces 2023 (Div. 1 + Div. 2, Rated, Prizes!)
1400–1499
33
  • 1500–159945
  • 1600–169932
  • 1700–179933
  • 1800–189942
  • 1900–199951
  • 2000–209932
  • 2100–219940
  • 2200–229931
  • 2300–239925
  • 2400–249922
  • 2500–259912
  • 2600–26998
  • 2700–27995
  • 2800–28995
  • 2900–29992
  • 3300–33991
  • 97
  • sortings89
  • binary search79
  • graphs67
  • strings64
  • number theory63
  • two pointers55
  • dfs and similar47
  • combinatorics43
  • bitmasks40
  • trees35
  • games22
  • interactive22
  • shortest paths20
  • dsu20
  • geometry20
  • hashing17
  • divide and conquer11
  • string suffix structures10
  • probabilities6
  • ternary search6
  • *special5
  • Other (8 tags)19
  • 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.

    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.

    2026

    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 14/day in 2017)

    2018

    Download PNG

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

    Jan
    Feb
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    Apr
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    Jun
    Jul
    Aug
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    LessMore (max 13/day in 2018)

    2019

    Download PNG

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

    Jan
    Feb
    Mar
    Apr
    May
    Jun
    Jul
    Aug
    Sep
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    LessMore (max 25/day in 2019)

    2020

    Download PNG

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

    Jan
    Feb
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    May
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    LessMore (max 32/day in 2020)

    2021

    Download PNG

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

    Jan
    Feb
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    May
    Jun
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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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    May
    Jun
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    LessMore (max 27/day in 2022)

    2023

    Download PNG

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

    Jan
    Feb
    Mar
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    May
    Jun
    Jul
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    Sep
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    LessMore (max 33/day in 2023)

    2024

    Download PNG

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

    Jan
    Feb
    Mar
    Apr
    May
    Jun
    Jul
    Aug
    Sep
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    LessMore (max 23/day in 2024)

    2026

    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 4/day in 2026)

    164
    +1
    2598
    2023-01-03 17:05Hello 202395+652597
    2022-12-17 17:05Polynomial Round 2022 (Div. 1 + Div. 2, Rated, Prizes!)533-1112532
    2022-10-23 09:50Codeforces Round 829 (Div. 1)80+352643
    2022-10-15 16:50Codeforces Global Round 23314-582608
    2022-10-07 17:05Dytechlab Cup 202217+1962666
    2022-08-16 16:35Codeforces Round 814 (Div. 1)52+1372470
    2022-06-25 16:50Codeforces Global Round 21928-952333