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Open on Codeforces · Unique solved

Rating2801· International 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
59
Unique solved
777
Submissions (all)
1,881
Years with activity
2019–2022

Solved by problem rating

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

  • Unrated20
  • 800–89929
  • 900–99913
  • 1000–10994
  • 1100–119913
  • 1200–129910
  • 1300–139914

Solved by topic

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

  • math237
  • data structures231
  • dp212
  • greedy210
  • constructive algorithms138
  • graphs116
  • trees

Rating changes

2019

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

Jan
Feb
Mar
Apr
May

Submission volume

Download all years PNG

2019

Download PNG

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

Jan
Feb
Mar
Apr

Recent rated rounds

When (UTC)ContestRankΔNew
2022-10-23 09:50Codeforces Round 829 (Div. 1)47+342801
2022-10-15 16:50Codeforces Global Round 2386+162767
2022-08-16 16:35Codeforces Round 814 (Div. 1)74-32751
2022-07-31 16:35CodeTON Round 2 (Div. 1 + Div. 2, Rated, Prizes!)33+962754
2022-07-16 16:35Codeforces Round 808 (Div. 1)55
1400–1499
19
  • 1500–159918
  • 1600–169924
  • 1700–179921
  • 1800–189929
  • 1900–199936
  • 2000–209931
  • 2100–219929
  • 2200–229935
  • 2300–239941
  • 2400–249950
  • 2500–259943
  • 2600–269966
  • 2700–279948
  • 2800–289937
  • 2900–299937
  • 3000–309936
  • 3100–319921
  • 3200–329927
  • 3300–339914
  • 3400–34996
  • 3500–35996
  • 116
  • brute force105
  • dfs and similar103
  • implementation97
  • binary search84
  • combinatorics81
  • sortings79
  • number theory73
  • strings70
  • bitmasks61
  • divide and conquer60
  • dsu50
  • two pointers42
  • string suffix structures36
  • probabilities35
  • shortest paths31
  • geometry30
  • hashing27
  • interactive26
  • games21
  • flows19
  • matrices17
  • Other (9 tags)49
  • 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.

    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.

    May
    Jun
    Jul
    Aug
    Sep
    Oct
    Nov
    Dec

    LessMore (max 13/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 29/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 53/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 15/day in 2022)

    +59
    2658
    2022-06-25 16:50Codeforces Global Round 21337-672599
    2022-06-16 16:35Codeforces Round 800 (Div. 1)124-152666
    2022-06-03 16:35Codeforces Round 796 (Div. 1)299-1362681
    2022-05-19 16:35Codeforces Round 792 (Div. 1 + Div. 2)135-672817
    2022-05-08 16:35Codeforces Round 789 (Div. 1)22+792884
    2022-04-23 17:05Codeforces Global Round 2068+272805
    2022-04-19 16:35Codeforces Round 783 (Div. 1)85-152778