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VAntonuk

Open on Codeforces · Unique solved

Rating2136· 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
22
Unique solved
236
Submissions (all)
668
Years with activity
2021–2025

Solved by problem rating

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

  • Unrated21
  • 800–89942
  • 900–9999
  • 1000–109912
  • 1100–11995
  • 1200–129915
  • 1300–139911

Solved by topic

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

  • greedy77
  • implementation67
  • math65
  • brute force62
  • constructive algorithms50
  • dp45
  • data structures

Rating changes

2021

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

Jan
Feb
Mar
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
2025-05-11 17:05Codeforces Round 1024 (Div. 1)718-882136
2025-04-19 16:35Neowise Labs Contest 1 (Codeforces Round 1018, Div. 1 + Div. 2)402+442224
2024-07-20 16:35Codeforces Round 960 (Div. 2)54+942180
2024-07-07 16:50Codeforces Round 956 (Div. 2) and ByteRace 2024277+202086
2024-06-25 16:35Codeforces Round 955 (Div. 2, with prizes from NEAR!)
1400–1499
14
  • 1500–159911
  • 1600–169919
  • 1700–179923
  • 1800–18999
  • 1900–199910
  • 2000–20998
  • 2100–21993
  • 2200–22994
  • 2300–23994
  • 2400–24995
  • 2500–25993
  • 2600–26994
  • 2700–27991
  • 2800–28991
  • 2900–29991
  • 3000–30991
  • 41
  • sortings38
  • binary search23
  • two pointers23
  • number theory23
  • dfs and similar18
  • strings17
  • graphs16
  • combinatorics12
  • trees10
  • geometry8
  • bitmasks7
  • dsu4
  • hashing4
  • shortest paths4
  • divide and conquer3
  • probabilities3
  • matrices3
  • interactive2
  • games2
  • ternary search2
  • string suffix structures2
  • Other (4 tags)4
  • 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.

    May
    Jun
    Jul
    Aug
    Sep
    Oct
    Nov
    Dec

    LessMore (max 14/day in 2021)

    2022

    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 31/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 16/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 26/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 14/day in 2025)

    185
    +48
    2066
    2024-03-05 16:35Codeforces Round 932 (Div. 2)398+212018
    2024-02-15 16:35Codeforces Round 926 (Div. 2)697-241997
    2024-02-11 11:35Codeforces Round 924 (Div. 2)228+332021
    2023-12-09 18:05Codeforces Round 914 (Div. 2)10+2781988
    2023-11-19 16:35Codeforces Round 910 (Div. 2)1807-521710
    2023-10-28 17:05Codeforces Round 906 (Div. 2)372+671762
    2023-03-18 14:20Codeforces Round 858 (Div. 2)491+851695