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Harmonic_qwq

Open on Codeforces · Unique solved

Rating2140· 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
7
Unique solved
292
Submissions (all)
880
Years with activity
2023–2026

Solved by problem rating

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

  • Unrated44
  • 800–89940
  • 900–99910
  • 1000–10997
  • 1100–119914
  • 1200–129910
  • 1300–139916

Solved by topic

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

  • greedy109
  • math106
  • dp63
  • data structures57
  • brute force56
  • constructive algorithms50
  • implementation

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
2025-12-19 17:05Codeforces Global Round 31 (Div. 1 + Div. 2)427+582140
2025-12-06 10:15Codeforces Round 1069 (Div. 1)247+1402082
2025-10-06 16:35Educational Codeforces Round 183 (Rated for Div. 2)661+821942
2025-10-05 18:35Codeforces Round 1056 (Div. 2)3+4951860
2025-08-07 17:35Atto Round 1 (Codeforces Round 1041, Div. 1 + Div. 2)
1400–1499
8
  • 1500–159910
  • 1600–169912
  • 1700–17999
  • 1800–189911
  • 1900–199912
  • 2000–20993
  • 2100–21997
  • 2200–22997
  • 2300–239913
  • 2400–24998
  • 2500–25996
  • 2600–269915
  • 2700–27996
  • 2800–28994
  • 2900–29991
  • 3000–30996
  • 3100–31994
  • 3200–32993
  • 3300–33991
  • 3400–34993
  • 3500–35992
  • 47
  • trees39
  • binary search38
  • dfs and similar33
  • graphs32
  • sortings29
  • combinatorics26
  • number theory25
  • bitmasks22
  • two pointers16
  • dsu16
  • strings15
  • divide and conquer13
  • probabilities11
  • games11
  • shortest paths7
  • flows5
  • graph matchings5
  • geometry5
  • interactive3
  • string suffix structures3
  • matrices3
  • Other (6 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.

    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.

    2026

    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 15/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 16/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 43/day in 2025)

    2026

    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 2026)

    994
    +376
    1365
    2025-07-31 17:35Codeforces Round 1040 (Div. 2)692+484989
    2025-01-22 14:05Codeforces Round 1000 (Div. 2)4831+505505