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kkykky

Open on Codeforces · Unique solved

Rating2182· 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
23
Unique solved
287
Submissions (all)
789
Years with activity
2023–2026

Solved by problem rating

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

  • Unrated20
  • 800–89924
  • 900–9995
  • 1000–10994
  • 1100–11995
  • 1200–129912
  • 1300–13997

Solved by topic

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

  • greedy93
  • data structures82
  • dp81
  • math79
  • constructive algorithms58
  • implementation53
  • brute force

Rating changes

2023

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

Jan
Feb
Mar
Apr
May

Submission volume

Download all years PNG

2023

Download PNG

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

Jan
Feb
Mar
Apr

Recent rated rounds

When (UTC)ContestRankΔNew
2026-03-28 17:15Nebius Round 2 (Codeforces Round 1088, Div. 1 + Div. 2)582+02182
2026-01-17 17:35Codeforces Round 1073 (Div. 1)265+702182
2025-12-11 16:35Codeforces Round 1070 (Div. 2)128+482112
2025-11-29 16:35Codeforces Round 1067 (Div. 2)104+782064
2025-11-23 12:35Codeforces Round 1066 (Div. 1 + Div. 2)
1400–1499
5
  • 1500–15994
  • 1600–16996
  • 1700–17998
  • 1800–18997
  • 1900–199911
  • 2000–209910
  • 2100–219912
  • 2200–229912
  • 2300–239913
  • 2400–249914
  • 2500–25998
  • 2600–269911
  • 2700–27995
  • 2800–289914
  • 2900–29995
  • 3000–309919
  • 3100–31997
  • 3200–32999
  • 3300–339917
  • 3400–34993
  • 3500–359910
  • 48
  • sortings41
  • graphs33
  • trees32
  • dfs and similar31
  • combinatorics31
  • binary search30
  • bitmasks25
  • strings23
  • divide and conquer21
  • dsu20
  • two pointers18
  • number theory17
  • probabilities14
  • interactive12
  • hashing11
  • string suffix structures8
  • graph matchings6
  • flows6
  • *special5
  • fft5
  • shortest paths5
  • Other (5 tags)14
  • 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 14/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 11/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 35/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 15/day in 2026)

    1064
    -21
    1986
    2025-07-31 17:35Codeforces Round 1040 (Div. 1)741-402007
    2025-07-06 17:35EPIC Institute of Technology Round Summer 2025 (Codeforces Round 1036, Div. 1 + Div. 2)462+662047
    2025-07-05 16:35Codeforces Round 1035 (Div. 2)137+1171981
    2025-06-15 11:05Codeforces Round 1031 (Div. 2)69+1741864
    2025-06-03 16:35Educational Codeforces Round 179 (Rated for Div. 2)648+831690
    2025-05-24 16:35Codeforces Round 1026 (Div. 2)637+1341607
    2025-05-17 16:50Codeforces Round 1025 (Div. 2)2431+341473