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dxh3434

Open on Codeforces · Unique solved

Rating2223· 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
10
Unique solved
361
Submissions (all)
1,200
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.

  • Unrated8
  • 800–89910
  • 900–9994
  • 1000–10992
  • 1200–12995
  • 1300–13993
  • 1400–14994

Solved by topic

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

  • dp111
  • data structures98
  • greedy95
  • math92
  • constructive algorithms65
  • graphs65
  • trees

Rating changes

2021

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

Jan
Feb
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May

Submission volume

Download all years PNG

2021

Download PNG

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

Jan
Feb
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Apr

Recent rated rounds

When (UTC)ContestRankΔNew
2025-03-23 08:05Codeforces Round 1012 (Div. 1)133+1012223
2024-12-03 08:25Codeforces Round 990 (Div. 1)171+1292122
2024-10-20 11:05Codeforces Round 980 (Div. 1)469+781993
2024-09-27 16:05Codeforces Round 975 (Div. 2)24+2241915
2024-07-20 16:35Codeforces Round 960 (Div. 2)1061
1500–1599
6
  • 1600–16996
  • 1700–17996
  • 1800–18996
  • 1900–19999
  • 2000–20995
  • 2100–21997
  • 2200–22999
  • 2300–239913
  • 2400–249919
  • 2500–259914
  • 2600–269914
  • 2700–279922
  • 2800–289931
  • 2900–299926
  • 3000–309925
  • 3100–319923
  • 3200–329921
  • 3300–339925
  • 3400–349917
  • 3500–359921
  • 50
  • brute force45
  • dfs and similar42
  • binary search37
  • combinatorics32
  • implementation31
  • sortings29
  • number theory28
  • bitmasks27
  • dsu26
  • divide and conquer22
  • two pointers20
  • probabilities19
  • hashing16
  • games14
  • geometry13
  • strings13
  • shortest paths12
  • interactive12
  • flows9
  • graph matchings9
  • matrices9
  • Other (8 tags)29
  • Jun
    Jul
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    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.

    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
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    Jun
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    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
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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
    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.

    May
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    Dec

    LessMore (max 4/day in 2021)

    2022

    Download PNG

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

    Jan
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    LessMore (max 10/day in 2022)

    2023

    Download PNG

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

    Jan
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    LessMore (max 9/day in 2023)

    2024

    Download PNG

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

    Jan
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    LessMore (max 32/day in 2024)

    2025

    Download PNG

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

    Jan
    Feb
    Mar
    Apr
    May
    Jun
    Jul
    Aug
    Sep
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    LessMore (max 54/day in 2025)

    2026

    Download PNG

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

    Jan
    Feb
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    May
    Jun
    Jul
    Aug
    Sep
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    Dec

    LessMore (max 4/day in 2026)

    +105
    1691
    2024-05-02 17:00Codeforces Round 943 (Div. 3)219+2181586
    2024-04-30 17:05Codeforces Round 942 (Div. 2)1450+1981368
    2023-12-30 16:50Good Bye 20238020+1911170
    2023-11-30 18:50Codeforces Round 912 (Div. 2)386+509979
    2023-08-05 16:35Codeforces Round 890 (Div. 2) supported by Constructor Institute6151+470470