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RedreamMer

Open on Codeforces · Unique solved

Rating2329· 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
21
Unique solved
1,474
Submissions (all)
4,785
Years with activity
2019–2026

Solved by problem rating

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

  • Unrated184
  • 800–899154
  • 900–99947
  • 1000–109937
  • 1100–119935
  • 1200–129932
  • 1300–139934

Solved by topic

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

  • math407
  • dp391
  • greedy351
  • implementation284
  • data structures279
  • constructive algorithms229

Rating changes

2019

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

Jan
Feb
Mar
Apr
May

Submission volume

Download all years PNG

2019

Download PNG

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

Jan
Feb
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Apr

Recent rated rounds

When (UTC)ContestRankΔNew
2024-05-25 17:35Codeforces Round 947 (Div. 1 + Div. 2)138+902329
2022-10-23 09:50Codeforces Round 829 (Div. 1)280+422239
2022-10-15 16:50Codeforces Global Round 23534+172197
2022-07-16 16:35Codeforces Round 808 (Div. 1)509-382180
2022-06-25 16:50Codeforces Global Round 21275
1400–1499
29
  • 1500–159934
  • 1600–169936
  • 1700–179941
  • 1800–189948
  • 1900–199967
  • 2000–209980
  • 2100–219970
  • 2200–229972
  • 2300–239966
  • 2400–249982
  • 2500–259978
  • 2600–269955
  • 2700–279952
  • 2800–289935
  • 2900–299925
  • 3000–309929
  • 3100–319918
  • 3200–329914
  • 3300–33998
  • 3400–34996
  • 3500–35996
  • brute force
    210
  • trees170
  • dfs and similar164
  • graphs158
  • binary search147
  • sortings130
  • combinatorics129
  • bitmasks122
  • number theory115
  • strings77
  • two pointers68
  • dsu65
  • probabilities60
  • divide and conquer56
  • shortest paths46
  • interactive31
  • geometry24
  • matrices23
  • games22
  • hashing22
  • flows19
  • string suffix structures16
  • Other (9 tags)67
  • 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.

    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
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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
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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
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    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
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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.

    2025

    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.

    2026

    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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    Dec

    LessMore (max 76/day in 2019)

    2020

    Download PNG

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

    Jan
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    LessMore (max 46/day in 2020)

    2021

    Download PNG

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

    Jan
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    LessMore (max 112/day in 2021)

    2022

    Download PNG

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

    Jan
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    LessMore (max 51/day in 2022)

    2023

    Download PNG

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

    Jan
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    LessMore (max 53/day in 2023)

    2024

    Download PNG

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

    Jan
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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 31/day in 2025)

    2026

    Download PNG

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

    Jan
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    LessMore (max 7/day in 2026)

    +84
    2218
    2022-02-23 12:10Codeforces Round 773 (Div. 1)333+562134
    2022-02-12 17:05Codeforces Global Round 19882-102078
    2021-11-26 13:15Codeforces Round 757 (Div. 2)19+1862088
    2021-11-22 11:35Educational Codeforces Round 117 (Rated for Div. 2)200+591902
    2021-10-25 08:35Codeforces Round 751 (Div. 2)118+851843
    2021-10-17 13:20Codeforces Round 749 (Div. 1 + Div. 2, based on Technocup 2022 Elimination Round 1)2204-581758
    2021-10-10 11:05Educational Codeforces Round 115 (Rated for Div. 2)314+711816