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Hayabusaa

Open on Codeforces · Unique solved

Rating2194· 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
84
Unique solved
736
Submissions (all)
1,996
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.

  • Unrated73
  • 800–899126
  • 900–99920
  • 1000–109935
  • 1100–119933
  • 1200–129928
  • 1300–139936

Solved by topic

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

  • greedy339
  • math290
  • constructive algorithms201
  • dp177
  • implementation167
  • data structures150

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
2026-04-13 16:35Codeforces Round 1093 (Div. 1)228+482194
2026-03-28 17:15Nebius Round 2 (Codeforces Round 1088, Div. 1 + Div. 2)537+202146
2026-03-16 16:50Educational Codeforces Round 188 (Rated for Div. 2)101+522126
2026-03-14 16:35Codeforces Round 1086 (Div. 2)322+82074
2026-03-08 17:35Codeforces Round 1085 (Div. 1 + Div. 2)
1400–1499
27
  • 1500–159922
  • 1600–169923
  • 1700–179928
  • 1800–189930
  • 1900–199933
  • 2000–209928
  • 2100–219931
  • 2200–229939
  • 2300–239936
  • 2400–249925
  • 2500–259921
  • 2600–269915
  • 2700–279910
  • 2800–28997
  • 2900–29991
  • 3000–30992
  • 3100–31991
  • 3200–32993
  • 3300–33991
  • 3500–35992
  • brute force
    131
  • binary search100
  • trees90
  • sortings85
  • dfs and similar76
  • combinatorics76
  • bitmasks72
  • graphs65
  • number theory62
  • strings46
  • two pointers45
  • interactive33
  • dsu31
  • games29
  • probabilities28
  • divide and conquer24
  • geometry17
  • shortest paths10
  • *special8
  • hashing8
  • communication7
  • graph matchings7
  • Other (8 tags)32
  • 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 22/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 29/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 22/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 26/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 23/day in 2026)

    1187
    -84
    2066
    2026-02-23 17:05Codeforces Round 1082 (Div. 1)404-42150
    2025-10-24 16:35Codeforces Round 1061 (Div. 2)28+1312154
    2025-10-10 16:50Codeforces Round 1057 (Div. 2)623-232023
    2025-10-06 16:35Educational Codeforces Round 183 (Rated for Div. 2)466-92046
    2025-10-03 17:35Squarepoint Challenge (Codeforces Round 1055, Div. 1 + Div. 2)447+872055
    2025-09-24 14:50Codeforces Round 1053 (Div. 1)613+231968
    2025-09-21 16:50Codeforces Round 1052 (Div. 2)793-221945