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bobby50792

Open on Codeforces · Unique solved

Rating2535· 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
48
Unique solved
821
Submissions (all)
1,862
Years with activity
2021–2024

Solved by problem rating

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

  • Unrated20
  • 800–89996
  • 900–99918
  • 1000–109919
  • 1100–119923
  • 1200–129922
  • 1300–139922

Solved by topic

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

  • greedy328
  • math300
  • data structures223
  • constructive algorithms219
  • dp208
  • implementation181

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
2024-08-30 17:05Codeforces Round 969 (Div. 1)99+612535
2024-03-30 17:35CodeTON Round 8 (Div. 1 + Div. 2, Rated, Prizes!)170+452474
2024-03-16 17:00Codeforces Round 934 (Div. 1)98+1012429
2023-11-25 17:20CodeTON Round 7 (Div. 1 + Div. 2, Rated, Prizes!)474-302328
2023-10-08 11:35Codeforces Round 902 (Div. 1, based on COMPFEST 15 - Final Round)
1400–1499
26
  • 1500–159914
  • 1600–169920
  • 1700–179933
  • 1800–189926
  • 1900–199936
  • 2000–209940
  • 2100–219931
  • 2200–229930
  • 2300–239940
  • 2400–249964
  • 2500–259948
  • 2600–269938
  • 2700–279930
  • 2800–289928
  • 2900–299921
  • 3000–309921
  • 3100–319913
  • 3200–329913
  • 3300–339910
  • 3400–34998
  • 3500–359911
  • brute force
    152
  • graphs117
  • dfs and similar111
  • sortings107
  • binary search103
  • trees99
  • combinatorics93
  • bitmasks82
  • number theory77
  • two pointers62
  • strings55
  • dsu51
  • shortest paths34
  • flows33
  • divide and conquer33
  • games29
  • geometry24
  • probabilities24
  • graph matchings20
  • interactive20
  • hashing18
  • matrices15
  • Other (9 tags)56
  • 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.

    May
    Jun
    Jul
    Aug
    Sep
    Oct
    Nov
    Dec

    LessMore (max 19/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 56/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 31/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 21/day in 2024)

    311
    -8
    2358
    2023-09-30 17:35Codeforces Round 901 (Div. 1)228+252366
    2023-09-18 16:50CodeTON Round 6 (Div. 1 + Div. 2, Rated, Prizes!)177+862341
    2023-05-08 14:05Codeforces Round 872 (Div. 1)427-422255
    2023-04-15 11:05Codeforces Round 866 (Div. 1)69+1662297
    2023-03-09 12:35Codeforces Round 857 (Div. 1)433-102131
    2023-02-05 15:05Codeforces Round 850 (Div. 1, based on VK Cup 2022 - Final Round)303+802141
    2022-10-23 09:50Codeforces Round 829 (Div. 1)674-372061