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Raiden_Mei_

Open on Codeforces · Unique solved

Rating2492· 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
20
Unique solved
418
Submissions (all)
931
Years with activity
2022–2026

Solved by problem rating

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

  • Unrated183
  • 800–89941
  • 900–99911
  • 1000–109910
  • 1100–119912
  • 1200–129912
  • 1300–139913

Solved by topic

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

  • greedy128
  • math103
  • constructive algorithms71
  • dp62
  • implementation60
  • brute force56
  • data structures

Rating changes

2022

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

Jan
Feb
Mar
Apr
May

Submission volume

Download all years PNG

2022

Download PNG

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

Jan
Feb
Mar
Apr

Recent rated rounds

When (UTC)ContestRankΔNew
2026-01-17 17:35Codeforces Round 1073 (Div. 1)132+372492
2026-01-07 17:35Hello 2026264+92455
2025-11-06 17:35Codeforces Global Round 30 (Div. 1 + Div. 2)374-422446
2025-09-24 14:50Codeforces Round 1053 (Div. 1)286-402488
2025-09-20 17:35Codeforces Global Round 29 (Div. 1 + Div. 2)231
1400–1499
7
  • 1500–159912
  • 1600–16999
  • 1700–179913
  • 1800–189910
  • 1900–199914
  • 2000–20998
  • 2100–219912
  • 2200–22999
  • 2300–23999
  • 2400–24996
  • 2500–259915
  • 2600–26993
  • 2700–27994
  • 2800–28992
  • 2900–29991
  • 3100–31991
  • 3500–35991
  • 51
  • sortings38
  • binary search36
  • number theory33
  • combinatorics27
  • bitmasks24
  • two pointers23
  • dfs and similar22
  • trees19
  • graphs19
  • games17
  • strings15
  • dsu10
  • geometry8
  • interactive7
  • probabilities6
  • divide and conquer6
  • shortest paths5
  • hashing4
  • matrices4
  • fft3
  • ternary search2
  • Other (4 tags)5
  • 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.

    2025

    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 9/day in 2022)

    2023

    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 36/day in 2023)

    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 37/day in 2024)

    2025

    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 17/day in 2025)

    2026

    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 14/day in 2026)

    +3
    2528
    2025-04-26 11:35Codeforces Round 1021 (Div. 1)70+692525
    2025-01-04 17:05Hello 2025496-422456
    2024-12-28 17:35Good Bye 2024: 2025 is NEAR162+602498
    2024-12-03 08:25Codeforces Round 990 (Div. 1)85+742438
    2024-11-23 17:35CodeTON Round 9 (Div. 1 + Div. 2, Rated, Prizes!)158+962364
    2024-09-27 16:05Codeforces Round 975 (Div. 1)543-402268
    2023-03-12 16:35Nebius Welcome Round (Div. 1 + Div. 2)377+32308