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Top rated · Stats

hamuim

Open on Codeforces · Unique solved

Rating2231· 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
16
Unique solved
278
Submissions (all)
785
Years with activity
2023–2025

Solved by problem rating

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

  • Unrated65
  • 800–89937
  • 900–9996
  • 1000–10997
  • 1100–119911
  • 1200–12997
  • 1300–139910

Solved by topic

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

  • math100
  • greedy95
  • constructive algorithms74
  • dp54
  • implementation53
  • brute force49
  • data structures

Rating changes

2023

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

Jan
Feb
Mar
Apr
May

Submission volume

Download all years PNG

2023

Download PNG

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

Jan
Feb
Mar
Apr

Recent rated rounds

When (UTC)ContestRankΔNew
2024-01-06 17:05Hello 2024192+1372231
2023-12-30 16:50Good Bye 2023717+462094
2023-12-24 16:35Codeforces Round 917 (Div. 2)553-292048
2023-12-23 17:35Pinely Round 3 (Div. 1 + Div. 2)551+472077
2023-12-03 16:35Educational Codeforces Round 159 (Rated for Div. 2)278+11
1400–1499
9
  • 1500–15995
  • 1600–16999
  • 1700–179912
  • 1800–18998
  • 1900–199917
  • 2000–20995
  • 2100–21998
  • 2200–229910
  • 2300–23999
  • 2400–249910
  • 2500–25999
  • 2600–26999
  • 2700–27993
  • 2800–28993
  • 2900–29993
  • 3000–30991
  • 3100–31994
  • 3300–33991
  • 46
  • sortings27
  • graphs24
  • bitmasks24
  • number theory24
  • binary search24
  • dfs and similar24
  • trees23
  • two pointers20
  • combinatorics18
  • strings18
  • games10
  • dsu8
  • interactive7
  • geometry7
  • *special6
  • shortest paths6
  • flows5
  • divide and conquer5
  • graph matchings2
  • hashing2
  • chinese remainder theorem2
  • Other (4 tags)5
  • 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 49/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 32/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 7/day in 2025)

    2030
    2023-11-19 16:35Codeforces Round 910 (Div. 2)203+412019
    2023-10-28 17:05Codeforces Round 906 (Div. 2)69+1071978
    2023-10-09 16:35Educational Codeforces Round 156 (Rated for Div. 2)886-41871
    2023-09-24 16:35Educational Codeforces Round 155 (Rated for Div. 2)73+2081875
    2023-04-27 16:35Codeforces Round 868 (Div. 2)1346-221667
    2023-04-24 16:50Codeforces Round 867 (Div. 3)111+1621689
    2023-04-15 11:05Codeforces Round 866 (Div. 2)1113+1051527