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Kaibad

Open on Codeforces · Unique solved

Rating2122· 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
70
Unique solved
1,024
Submissions (all)
1,986
Years with activity
2021–2026

Solved by problem rating

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

  • Unrated45
  • 800–899248
  • 900–99957
  • 1000–109952
  • 1100–119961
  • 1200–129952
  • 1300–139961

Solved by topic

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

  • greedy468
  • math386
  • implementation304
  • constructive algorithms270
  • brute force216
  • dp160
  • data structures

Rating changes

2021

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

2021

Download PNG

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

Jan
Feb
Mar
Apr

Recent rated rounds

When (UTC)ContestRankΔNew
2023-10-28 17:05Codeforces Round 906 (Div. 1)579-402122
2023-10-22 13:05Codeforces Round 905 (Div. 1)453-472162
2023-09-18 16:50CodeTON Round 6 (Div. 1 + Div. 2, Rated, Prizes!)297+802209
2023-08-30 17:35Pinely Round 2 (Div. 1 + Div. 2)429+552129
2023-07-23 17:05Codeforces Round 887 (Div. 1)484
1400–1499
60
  • 1500–159966
  • 1600–169979
  • 1700–179949
  • 1800–189936
  • 1900–199944
  • 2000–209942
  • 2100–219922
  • 2200–229916
  • 2300–23998
  • 2400–249911
  • 2500–25998
  • 2600–26992
  • 2700–27992
  • 2800–28993
  • 140
  • sortings137
  • binary search101
  • number theory91
  • strings89
  • bitmasks68
  • dfs and similar65
  • two pointers64
  • graphs59
  • trees57
  • combinatorics44
  • interactive30
  • dsu29
  • geometry26
  • games23
  • shortest paths21
  • hashing16
  • divide and conquer15
  • probabilities11
  • *special9
  • ternary search7
  • matrices6
  • Other (8 tags)22
  • 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
    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
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    Aug
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    Dec

    LessMore (max 34/day in 2021)

    2022

    Download PNG

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

    Jan
    Feb
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    May
    Jun
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    LessMore (max 77/day in 2022)

    2023

    Download PNG

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

    Jan
    Feb
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    May
    Jun
    Jul
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    Sep
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    Dec

    LessMore (max 38/day in 2023)

    2024

    Download PNG

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

    Jan
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    May
    Jun
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    Dec

    LessMore (max 6/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 22/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 4/day in 2026)

    -17
    2074
    2023-07-16 16:35Codeforces Round 885 (Div. 2)315-72091
    2023-07-11 17:35Codeforces Round 884 (Div. 1 + Div. 2)961-322098
    2023-05-08 14:05Codeforces Round 872 (Div. 1)528-412130
    2023-04-27 16:35Codeforces Round 868 (Div. 2)46+742171
    2023-04-20 16:35Educational Codeforces Round 147 (Rated for Div. 2)144+262097
    2023-04-15 11:05Codeforces Round 866 (Div. 1)614-822071
    2023-04-09 17:00Codeforces Round 865 (Div. 1)520-562153