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Retired_Isaunoya

Open on Codeforces · Unique solved

Rating2526· 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
28
Unique solved
2,764
Submissions (all)
4,979
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.

  • Unrated543
  • 800–899307
  • 900–99977
  • 1000–109993
  • 1100–119988
  • 1200–1299105
  • 1300–1399102

Solved by topic

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

  • greedy897
  • math832
  • dp584
  • data structures561
  • implementation532
  • constructive algorithms507

Rating changes

2019

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

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
2025-12-27 17:35Good Bye 202573+1222526
2025-09-20 17:35Codeforces Global Round 29 (Div. 1 + Div. 2)523-412404
2025-08-28 17:35Codeforces Round 1046 (Div. 1)165+242445
2025-07-31 17:35Codeforces Round 1040 (Div. 1)201+212421
2025-07-19 16:50Order Capital Round 1 (Codeforces Round 1038, Div. 1 + Div. 2)
1400–1499
92
  • 1500–159985
  • 1600–169987
  • 1700–1799112
  • 1800–189997
  • 1900–1999123
  • 2000–2099107
  • 2100–219997
  • 2200–2299114
  • 2300–239990
  • 2400–2499108
  • 2500–259981
  • 2600–269964
  • 2700–279955
  • 2800–289936
  • 2900–299929
  • 3000–309924
  • 3100–319912
  • 3200–329915
  • 3300–33998
  • 3400–34998
  • 3500–35995
  • brute force
    460
  • binary search301
  • sortings298
  • bitmasks236
  • graphs232
  • dfs and similar227
  • number theory212
  • trees211
  • strings189
  • two pointers179
  • combinatorics165
  • divide and conquer113
  • dsu111
  • hashing69
  • shortest paths56
  • games54
  • geometry51
  • interactive49
  • probabilities47
  • string suffix structures46
  • matrices28
  • ternary search22
  • Other (10 tags)92
  • 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.

    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
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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
    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.

    2026

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

    Jan
    Feb
    Mar
    Apr
    May
    Jun
    Jul
    Aug
    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.

    May
    Jun
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    Sep
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    Dec

    LessMore (max 33/day in 2019)

    2020

    Download PNG

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

    Jan
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    LessMore (max 26/day in 2020)

    2021

    Download PNG

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

    Jan
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    LessMore (max 20/day in 2021)

    2022

    Download PNG

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

    Jan
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    LessMore (max 14/day in 2022)

    2023

    Download PNG

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

    Jan
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    Jun
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    LessMore (max 58/day in 2023)

    2024

    Download PNG

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

    Jan
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    LessMore (max 36/day in 2024)

    2025

    Download PNG

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

    Jan
    Feb
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    May
    Jun
    Jul
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    LessMore (max 37/day in 2025)

    2026

    Download PNG

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

    Jan
    Feb
    Mar
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    May
    Jun
    Jul
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    Dec

    LessMore (max 21/day in 2026)

    196
    +68
    2400
    2025-05-31 16:35Codeforces Round 1028 (Div. 1)280+132332
    2023-10-08 11:35Codeforces Round 902 (Div. 1, based on COMPFEST 15 - Final Round)112+1352319
    2023-09-30 17:35Codeforces Round 901 (Div. 1)388+232184
    2023-07-11 17:35Codeforces Round 884 (Div. 1 + Div. 2)420+412161
    2023-06-18 16:35Codeforces Round 880 (Div. 1)648-752120
    2021-02-07 16:50Codeforces Round 700 (Div. 1)859-882195
    2020-10-25 13:05Codeforces Round 679 (Div. 1, based on Technocup 2021 Elimination Round 1)370-332283