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Neal_lee

Open on Codeforces · Unique solved

Rating2334· 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
47
Unique solved
546
Submissions (all)
1,403
Years with activity
2018–2024

Solved by problem rating

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

  • Unrated27
  • 800–89941
  • 900–99910
  • 1000–109910
  • 1100–119911
  • 1200–129919
  • 1300–139910

Solved by topic

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

  • math186
  • greedy173
  • dp131
  • constructive algorithms128
  • data structures126
  • implementation107

Rating changes

2018

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

Jan
Feb
Mar
Apr
May

Submission volume

Download all years PNG

2018

Download PNG

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

Jan
Feb
Mar
Apr

Recent rated rounds

When (UTC)ContestRankΔNew
2022-06-25 16:50Codeforces Global Round 21244+552334
2022-05-08 16:35Codeforces Round 789 (Div. 1)391-362279
2022-04-23 17:05Codeforces Global Round 20548-362315
2022-04-19 16:35Codeforces Round 783 (Div. 1)129+922351
2022-03-20 13:50Codeforces Round 778 (Div. 1 + Div. 2, based on Technocup 2022 Final Round)
1400–1499
17
  • 1500–159919
  • 1600–169916
  • 1700–179924
  • 1800–189918
  • 1900–199915
  • 2000–209919
  • 2100–219921
  • 2200–229922
  • 2300–239922
  • 2400–249926
  • 2500–259925
  • 2600–269930
  • 2700–279923
  • 2800–289924
  • 2900–299920
  • 3000–309920
  • 3100–319920
  • 3200–329910
  • 3300–339914
  • 3400–34998
  • 3500–35995
  • brute force
    100
  • graphs87
  • combinatorics65
  • number theory55
  • trees51
  • sortings49
  • binary search48
  • bitmasks47
  • dfs and similar46
  • strings43
  • dsu29
  • two pointers27
  • shortest paths26
  • divide and conquer24
  • interactive20
  • geometry18
  • hashing17
  • probabilities16
  • games15
  • *special15
  • string suffix structures14
  • fft13
  • Other (8 tags)44
  • 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.

    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
    Jul
    Aug
    Sep
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    Nov
    Dec

    LessMore (max 8/day in 2018)

    2019

    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 7/day in 2019)

    2020

    Download PNG

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

    Jan
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    May
    Jun
    Jul
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    LessMore (max 11/day in 2020)

    2021

    Download PNG

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

    Jan
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    May
    Jun
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    LessMore (max 27/day in 2021)

    2022

    Download PNG

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

    Jan
    Feb
    Mar
    Apr
    May
    Jun
    Jul
    Aug
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    LessMore (max 24/day in 2022)

    2024

    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 1/day in 2024)

    209
    +80
    2259
    2022-03-06 12:10Codeforces Round 775 (Div. 1, based on Moscow Open Olympiad in Informatics)526-492179
    2022-02-12 17:05Codeforces Global Round 19354+472228
    2021-12-24 17:05Codeforces Global Round 18342+612181
    2021-12-11 12:05Codeforces Round 758 (Div.1 + Div. 2)330+482120
    2021-11-26 13:15Codeforces Round 757 (Div. 2)41+1402072
    2021-10-30 16:35Codeforces Round 752 (Div. 1)793-271932
    2021-10-25 08:35Codeforces Round 751 (Div. 1)602-761959