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Top rated · Stats

pskobx

Open on Codeforces · Unique solved

Rating2222· 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
38
Unique solved
758
Submissions (all)
1,800
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.

  • Unrated258
  • 800–899172
  • 900–99926
  • 1000–109923
  • 1100–119933
  • 1200–129933
  • 1300–139920

Solved by topic

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

  • math229
  • greedy197
  • implementation144
  • constructive algorithms124
  • brute force93
  • sortings69
  • dp

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
2025-12-27 17:35Good Bye 2025694-52222
2025-09-20 17:35Codeforces Global Round 29 (Div. 1 + Div. 2)646-72227
2025-06-03 16:35Educational Codeforces Round 179 (Rated for Div. 2)22+1182234
2025-05-24 16:35Codeforces Round 1026 (Div. 2)88+792116
2025-05-05 16:50Codeforces Round 1023 (Div. 2)207
1400–1499
19
  • 1500–159919
  • 1600–169918
  • 1700–179920
  • 1800–189926
  • 1900–199922
  • 2000–209919
  • 2100–219911
  • 2200–229912
  • 2300–23997
  • 2400–24996
  • 2500–25992
  • 2600–26995
  • 2700–27995
  • 2900–29991
  • 3000–30991
  • 62
  • data structures60
  • number theory56
  • binary search50
  • strings44
  • bitmasks31
  • dfs and similar31
  • graphs30
  • trees28
  • two pointers25
  • combinatorics23
  • *special19
  • interactive17
  • games16
  • dsu13
  • geometry11
  • divide and conquer8
  • probabilities8
  • hashing7
  • shortest paths6
  • graph matchings4
  • ternary search4
  • Other (10 tags)20
  • 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
    Jul
    Aug
    Sep
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    Dec

    LessMore (max 17/day in 2021)

    2022

    Download PNG

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

    Jan
    Feb
    Mar
    Apr
    May
    Jun
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    LessMore (max 29/day in 2022)

    2023

    Download PNG

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

    Jan
    Feb
    Mar
    Apr
    May
    Jun
    Jul
    Aug
    Sep
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    Dec

    LessMore (max 35/day in 2023)

    2024

    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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    Sep
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    Dec

    LessMore (max 49/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 29/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 21/day in 2026)

    +36
    2037
    2025-05-01 16:35Codeforces Round 1022 (Div. 2)504-112001
    2025-04-28 16:35Educational Codeforces Round 178 (Rated for Div. 2)637-342012
    2025-04-05 17:35Teza Round 1 (Codeforces Round 1015, Div. 1 + Div. 2)713+282046
    2025-03-29 16:35Codeforces Round 1014 (Div. 2)236+622018
    2025-02-28 16:50Codeforces Round 1007 (Div. 2)765-141956
    2025-01-12 16:35Codeforces Round 996 (Div. 2)1540-601970
    2024-02-23 16:35Educational Codeforces Round 162 (Rated for Div. 2)58+1412030