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goodjulian

Open on Codeforces · Unique solved

Rating2163· 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
40
Unique solved
469
Submissions (all)
1,326
Years with activity
2021–2025

Solved by problem rating

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

  • Unrated11
  • 800–89992
  • 900–99920
  • 1000–109919
  • 1100–119920
  • 1200–129925
  • 1300–139927

Solved by topic

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

  • greedy226
  • math175
  • constructive algorithms127
  • implementation108
  • dp105
  • brute force92
  • data structures

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
2022-01-22 16:35Codeforces Round 767 (Div. 1)375+342163
2022-01-15 16:35Codeforces Round 766 (Div. 2)15+1892129
2022-01-03 16:50Hello 20221328-71940
2021-12-29 17:35Good Bye 2021: 2022 is NEAR1162+121947
2021-12-27 16:35Educational Codeforces Round 120 (Rated for Div. 2)1414
1400–1499
20
  • 1500–159925
  • 1600–169936
  • 1700–179935
  • 1800–189926
  • 1900–199938
  • 2000–209914
  • 2100–219922
  • 2200–229914
  • 2300–239913
  • 2400–24993
  • 2500–25995
  • 2600–26994
  • 88
  • sortings68
  • graphs45
  • number theory44
  • dfs and similar43
  • binary search43
  • bitmasks43
  • two pointers40
  • strings37
  • trees37
  • combinatorics24
  • dsu23
  • shortest paths19
  • interactive17
  • games16
  • geometry11
  • hashing10
  • divide and conquer9
  • graph matchings6
  • ternary search4
  • probabilities4
  • flows4
  • Other (5 tags)8
  • 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.

    May
    Jun
    Jul
    Aug
    Sep
    Oct
    Nov
    Dec

    LessMore (max 43/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 22/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 9/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 7/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 9/day in 2025)

    -74
    1935
    2021-12-24 17:05Codeforces Global Round 18651+432009
    2021-12-18 17:35Educational Codeforces Round 119 (Rated for Div. 2)696-431966
    2021-11-12 16:35Codeforces Round 754 (Div. 2)556-312009
    2021-10-30 16:35Codeforces Round 752 (Div. 1)502+412040
    2021-09-12 17:05Codeforces Global Round 161243-271999
    2021-09-08 16:35Educational Codeforces Round 113 (Rated for Div. 2)97+1012026
    2021-09-05 16:35Codeforces Round 742 (Div. 2)391+391925