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suisdavid

Open on Codeforces · Unique solved

Rating2117· 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
15
Unique solved
661
Submissions (all)
1,401
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.

  • Unrated3
  • 800–899118
  • 900–99924
  • 1000–109928
  • 1100–119936
  • 1200–129939
  • 1300–139937

Solved by topic

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

  • greedy314
  • math271
  • constructive algorithms198
  • dp159
  • implementation155
  • data structures151

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
2023-11-25 17:20CodeTON Round 7 (Div. 1 + Div. 2, Rated, Prizes!)663+12117
2023-09-30 17:35Codeforces Round 901 (Div. 1)852-852116
2023-08-26 17:35Harbour.Space Scholarship Contest 2023-2024 (Div. 1 + Div. 2)376+412201
2023-07-29 17:05Codeforces Round 889 (Div. 1)635-492160
2023-07-27 16:35Educational Codeforces Round 152 (Rated for Div. 2)
1400–1499
35
  • 1500–159915
  • 1600–169928
  • 1700–179930
  • 1800–189922
  • 1900–199937
  • 2000–209921
  • 2100–219914
  • 2200–229925
  • 2300–239927
  • 2400–249917
  • 2500–259919
  • 2600–26998
  • 2700–27995
  • 2800–289911
  • 2900–299920
  • 3000–309911
  • 3100–31996
  • 3200–329914
  • 3300–339910
  • 3500–35991
  • brute force
    133
  • sortings99
  • binary search81
  • number theory63
  • combinatorics59
  • dfs and similar57
  • strings56
  • trees56
  • graphs56
  • bitmasks55
  • two pointers50
  • games32
  • dsu30
  • divide and conquer25
  • probabilities15
  • geometry15
  • hashing12
  • interactive11
  • shortest paths11
  • flows7
  • string suffix structures6
  • 2-sat6
  • Other (8 tags)19
  • 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.

    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 25/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 18/day in 2024)

    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 1/day in 2026)

    15
    +153
    2209
    2023-07-16 16:35Codeforces Round 885 (Div. 2)235+262056
    2023-07-11 17:35Codeforces Round 884 (Div. 1 + Div. 2)227+1582030
    2023-07-06 16:50Codeforces Round 882 (Div. 2)697+91872
    2023-06-29 16:35Educational Codeforces Round 151 (Rated for Div. 2)361+651863
    2023-06-24 17:05CodeTON Round 5 (Div. 1 + Div. 2, Rated, Prizes!)1529+491798
    2023-05-12 16:35Educational Codeforces Round 148 (Rated for Div. 2)278+1981749
    2023-04-29 16:50Codeforces Round 869 (Div. 2)525+1911551