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Top rated · Stats

AlexReformed

Open on Codeforces · Unique solved

Rating2166· 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
17
Unique solved
116
Submissions (all)
250
Years with activity
2017–2022

Solved by problem rating

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

  • 800–89914
  • 900–9997
  • 1000–10995
  • 1100–11998
  • 1200–12996
  • 1300–139910
  • 1400–14996

Solved by topic

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

  • greedy39
  • implementation38
  • math32
  • brute force21
  • dp18
  • constructive algorithms18
  • data structures

Rating changes

2017

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

Jan
Feb
Mar
Apr
May

Submission volume

Download all years PNG

2017

Download PNG

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

Jan
Feb
Mar
Apr

Recent rated rounds

When (UTC)ContestRankΔNew
2019-11-06 17:05Codeforces Round 599 (Div. 1)185+822166
2019-09-15 12:35Codeforces Round 585 (Div. 2)171+202084
2019-09-14 15:35Codeforces Round 584 - Dasha Code Championship - Elimination Round (rated, open for everyone, Div. 1 + Div. 2)952-412064
2019-08-07 16:35Educational Codeforces Round 70 (Rated for Div. 2)26+1402105
2019-08-04 18:35
1500–1599
6
  • 1600–169912
  • 1700–17997
  • 1800–18999
  • 1900–19995
  • 2000–20997
  • 2100–21994
  • 2200–22994
  • 2300–23991
  • 2400–24992
  • 2500–25992
  • 2900–29991
  • 17
  • binary search15
  • sortings12
  • dfs and similar12
  • strings11
  • graphs10
  • number theory9
  • bitmasks7
  • trees7
  • dsu5
  • combinatorics4
  • shortest paths4
  • two pointers4
  • games3
  • interactive1
  • probabilities1
  • geometry1
  • matrices1
  • 2-sat1
  • ternary search1
  • 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.

    2018

    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.

    2019

    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.

    2020

    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.

    May
    Jun
    Jul
    Aug
    Sep
    Oct
    Nov
    Dec

    LessMore (max 1/day in 2017)

    2018

    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 13/day in 2018)

    2019

    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 2019)

    2020

    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 1/day in 2020)

    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 10/day in 2022)

    Codeforces Round 577 (Div. 2)
    364
    -2
    1965
    2019-07-30 16:35Codeforces Round 576 (Div. 1)482-331967
    2019-07-22 16:35Educational Codeforces Round 69 (Rated for Div. 2)417-102000
    2019-07-05 17:05Codeforces Round 572 (Div. 1)207+882010
    2019-06-30 16:45Educational Codeforces Round 67 (Rated for Div. 2)175+711922
    2019-06-21 19:05Codeforces Round 569 (Div. 2)296+121851
    2018-03-06 17:05Educational Codeforces Round 39 (Rated for Div. 2)163+391839
    2018-02-17 12:05Codeforces Round 464 (Div. 2)482-191800