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aaa_Pigeon2

Open on Codeforces · Unique solved

Rating2517· 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
9
Unique solved
277
Submissions (all)
456
Years with activity
2026–2026

Solved by problem rating

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

  • Unrated60
  • 800–89922
  • 900–9994
  • 1000–10998
  • 1100–11997
  • 1200–12997
  • 1300–139910

Solved by topic

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

  • dp88
  • math83
  • greedy81
  • data structures60
  • constructive algorithms45
  • implementation37
  • trees

Rating changes

2026

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

Jan
Feb
Mar
Apr
May

Submission volume

Download all years PNG

2026

Download PNG

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

Jan
Feb
Mar
Apr

Recent rated rounds

When (UTC)ContestRankΔNew
2026-04-25 17:05Spectral::Cup 2026 Round 1 (Codeforces Round 1094, Div. 1 + Div. 2)126+302517
2026-04-13 16:35Codeforces Round 1093 (Div. 1)53+1152487
2026-03-28 17:15Nebius Round 2 (Codeforces Round 1088, Div. 1 + Div. 2)191+472372
2026-02-21 16:35Codeforces Round 1081 (Div. 2)3+2542325
2026-02-11 17:35Codeforces Round 1079 (Div. 2)
1400–1499
4
  • 1500–15994
  • 1600–16994
  • 1700–17998
  • 1800–189912
  • 1900–19998
  • 2000–20999
  • 2100–219910
  • 2200–229915
  • 2300–239915
  • 2400–249912
  • 2500–25998
  • 2600–26998
  • 2700–27997
  • 2800–28996
  • 2900–299911
  • 3000–30999
  • 3100–31993
  • 3200–32994
  • 3300–33991
  • 3400–34991
  • 33
  • brute force33
  • strings32
  • binary search31
  • sortings28
  • dfs and similar28
  • bitmasks24
  • graphs21
  • number theory17
  • divide and conquer17
  • combinatorics16
  • two pointers15
  • dsu14
  • string suffix structures11
  • hashing10
  • games10
  • interactive9
  • probabilities9
  • flows7
  • geometry5
  • matrices4
  • *special4
  • Other (8 tags)14
  • 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
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    Aug
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    Dec

    LessMore (max 27/day in 2026)

    12
    +271
    2071
    2026-02-08 11:05Codeforces Round 1078 (Div. 2)36+3471800
    2026-01-23 16:35Codeforces Round 1075 (Div. 2)432+3501453
    2026-01-18 16:50Codeforces Round 1074 (Div. 4)18+6071103
    2026-01-17 17:35Codeforces Round 1073 (Div. 2)4401+496496