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Open on Codeforces · Unique solved

Rating2466· 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
25
Unique solved
429
Submissions (all)
1,034
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.

  • Unrated1
  • 800–89921
  • 900–9994
  • 1000–10994
  • 1100–11998
  • 1200–12995
  • 1300–139912

Solved by topic

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

  • dp150
  • greedy133
  • math123
  • data structures120
  • constructive algorithms98
  • trees73
  • graphs

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
2026-02-23 17:05Codeforces Round 1082 (Div. 1)129+292466
2026-01-17 17:35Codeforces Round 1073 (Div. 1)284-322437
2026-01-07 17:35Hello 2026186+372469
2025-12-27 17:35Good Bye 2025223+422432
2025-12-19 17:05Codeforces Global Round 31 (Div. 1 + Div. 2)139+91
1400–1499
10
  • 1500–15994
  • 1600–16995
  • 1700–179915
  • 1800–18994
  • 1900–199913
  • 2000–20997
  • 2100–21999
  • 2200–22991
  • 2300–239912
  • 2400–24999
  • 2500–259916
  • 2600–269913
  • 2700–279917
  • 2800–289927
  • 2900–299934
  • 3000–309943
  • 3100–319934
  • 3200–329935
  • 3300–339927
  • 3400–349912
  • 3500–359927
  • 72
  • implementation64
  • brute force63
  • bitmasks58
  • binary search57
  • combinatorics52
  • dfs and similar49
  • flows36
  • sortings35
  • interactive34
  • number theory30
  • strings28
  • two pointers26
  • string suffix structures22
  • dsu20
  • divide and conquer19
  • graph matchings18
  • hashing18
  • games17
  • probabilities16
  • shortest paths15
  • matrices14
  • Other (8 tags)31
  • 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 14/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 11/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 22/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 20/day in 2026)

    2390
    2025-11-23 12:35Codeforces Round 1066 (Div. 1 + Div. 2)1392-1472299
    2025-11-16 16:35Codeforces Round 1064 (Div. 1)328-582446
    2025-11-06 17:35Codeforces Global Round 30 (Div. 1 + Div. 2)311-402504
    2025-10-12 17:05Codeforces Round 1058 (Div. 1)139+102544
    2025-10-03 17:35Squarepoint Challenge (Codeforces Round 1055, Div. 1 + Div. 2)111+662534
    2025-09-24 14:50Codeforces Round 1053 (Div. 1)159+352468
    2025-08-07 17:35Atto Round 1 (Codeforces Round 1041, Div. 1 + Div. 2)50+1832433