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BiouX

Open on Codeforces · Unique solved

Rating2521· Grandmaster

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
28
Unique solved
120
Submissions (all)
245
Years with activity
2020–2026

Solved by problem rating

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

  • Unrated4
  • 800–89921
  • 900–9996
  • 1000–10993
  • 1100–11995
  • 1200–12999
  • 1300–139910

Solved by topic

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

  • greedy69
  • math49
  • constructive algorithms44
  • implementation35
  • dp29
  • sortings25
  • brute force

Rating changes

2020

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

Jan
Feb
Mar
Apr
May

Submission volume

Download all years PNG

2020

Download PNG

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

Jan
Feb
Mar
Apr

Recent rated rounds

When (UTC)ContestRankΔNew
2026-05-06 08:35Codeforces Round 1097 (Div. 1, Based on Zhili Cup 2026)78+272521
2023-09-18 16:50CodeTON Round 6 (Div. 1 + Div. 2, Rated, Prizes!)42+1792494
2023-09-10 16:35Codeforces Round 896 (Div. 1)486-572315
2023-08-30 17:35Pinely Round 2 (Div. 1 + Div. 2)213+452372
2023-04-29 16:50Codeforces Round 869 (Div. 1)
1400–1499
4
  • 1500–159910
  • 1600–16993
  • 1700–17997
  • 1800–189911
  • 1900–19996
  • 2000–20993
  • 2100–21997
  • 2200–22993
  • 2300–23992
  • 2400–24994
  • 2500–25991
  • 2900–29991
  • 23
  • binary search16
  • data structures16
  • graphs14
  • dfs and similar13
  • bitmasks13
  • number theory9
  • two pointers9
  • strings9
  • trees8
  • combinatorics8
  • shortest paths5
  • dsu4
  • flows3
  • graph matchings3
  • geometry3
  • chinese remainder theorem2
  • games2
  • divide and conquer2
  • probabilities1
  • interactive1
  • hashing1
  • Other (1 tag)1
  • 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.

    2021

    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.

    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.

    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 16/day in 2020)

    2021

    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 10/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 19/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 11/day in 2023)

    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 9/day in 2026)

    301
    -20
    2327
    2022-12-30 17:05Good Bye 2022: 2023 is NEAR179+1052347
    2022-06-25 16:50Codeforces Global Round 21310+602242
    2022-05-19 16:35Codeforces Round 792 (Div. 1 + Div. 2)2179-1652182
    2022-02-12 17:05Codeforces Global Round 19187+752347
    2022-01-27 16:35Codeforces Round 768 (Div. 1)153+1032272
    2022-01-03 16:50Hello 2022846-262169
    2021-12-29 17:35Good Bye 2021: 2022 is NEAR679-42195