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Top rated · Stats

ethan_enhe

Open on Codeforces · Unique solved

Rating2430· 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
66
Unique solved
705
Submissions (all)
1,734
Years with activity
2018–2025

Solved by problem rating

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

  • Unrated230
  • 800–89944
  • 900–99916
  • 1000–109928
  • 1100–119915
  • 1200–129920
  • 1300–139921

Solved by topic

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

  • greedy211
  • math178
  • dp124
  • implementation115
  • constructive algorithms109
  • brute force97
  • data structures

Rating changes

2018

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

2018

Download PNG

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

Jan
Feb
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Apr

Recent rated rounds

When (UTC)ContestRankΔNew
2024-02-29 16:35Codeforces Round 930 (Div. 1)129+412430
2024-02-17 17:35think-cell Round 1155+652389
2023-12-30 16:50Good Bye 2023500+52324
2023-12-23 17:35Pinely Round 3 (Div. 1 + Div. 2)293+312319
2023-11-07 16:35Codeforces Round 908 (Div. 1)181+80
1400–1499
21
  • 1500–159920
  • 1600–169925
  • 1700–179934
  • 1800–189927
  • 1900–199939
  • 2000–209927
  • 2100–219925
  • 2200–229919
  • 2300–239918
  • 2400–249934
  • 2500–259915
  • 2600–269910
  • 2700–27996
  • 2800–28995
  • 3000–30993
  • 3100–31991
  • 3200–32991
  • 3300–33991
  • 93
  • sortings73
  • binary search65
  • graphs64
  • dfs and similar54
  • combinatorics46
  • number theory45
  • trees42
  • strings40
  • bitmasks39
  • two pointers30
  • dsu28
  • shortest paths15
  • geometry13
  • games12
  • interactive11
  • divide and conquer11
  • probabilities11
  • hashing8
  • flows6
  • string suffix structures5
  • matrices5
  • Other (5 tags)9
  • Jun
    Jul
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    Sep
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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
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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.

    2020

    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.

    2021

    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.

    2022

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

    Jan
    Feb
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    Jun
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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.

    2023

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

    Jan
    Feb
    Mar
    Apr
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    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.

    2024

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

    Jan
    Feb
    Mar
    Apr
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    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.

    2025

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

    Jan
    Feb
    Mar
    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.

    May
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    LessMore (max 7/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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    LessMore (max 30/day in 2020)

    2021

    Download PNG

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

    Jan
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    LessMore (max 43/day in 2021)

    2022

    Download PNG

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

    Jan
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    LessMore (max 25/day in 2022)

    2023

    Download PNG

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

    Jan
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    LessMore (max 29/day in 2023)

    2024

    Download PNG

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

    Jan
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    Jun
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    LessMore (max 25/day in 2024)

    2025

    Download PNG

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

    Jan
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    Jun
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    LessMore (max 21/day in 2025)

    2288
    2023-10-28 17:05Codeforces Round 906 (Div. 1)412-112208
    2023-09-10 16:35Codeforces Round 896 (Div. 1)440-142219
    2023-07-29 17:05Codeforces Round 889 (Div. 1)244+682233
    2023-07-11 17:35Codeforces Round 884 (Div. 1 + Div. 2)3413-1952165
    2023-06-24 17:05CodeTON Round 5 (Div. 1 + Div. 2, Rated, Prizes!)101+1332360
    2023-06-18 16:35Codeforces Round 880 (Div. 1)407-282227
    2023-05-28 17:05Codeforces Round 875 (Div. 1)401-412255