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fishcathu

Open on Codeforces · Unique solved

Rating2499· 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
23
Unique solved
563
Submissions (all)
1,320
Years with activity
2024–2026

Solved by problem rating

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

  • Unrated67
  • 800–89954
  • 900–99911
  • 1000–109911
  • 1100–119918
  • 1200–129920
  • 1300–139923

Solved by topic

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

  • greedy243
  • math194
  • dp159
  • data structures123
  • implementation119
  • brute force117
  • constructive algorithms

Rating changes

2024

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

Jan
Feb
Mar
Apr
May

Submission volume

Download all years PNG

2024

Download PNG

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

Jan
Feb
Mar
Apr

Recent rated rounds

When (UTC)ContestRankΔNew
2025-11-16 16:35Codeforces Round 1064 (Div. 1)251-432499
2025-10-12 17:05Codeforces Round 1058 (Div. 1)67+912542
2025-10-03 17:35Squarepoint Challenge (Codeforces Round 1055, Div. 1 + Div. 2)978-1302451
2025-09-20 17:35Codeforces Global Round 29 (Div. 1 + Div. 2)227-122581
2025-08-28 17:35Codeforces Round 1046 (Div. 1)
1400–1499
13
  • 1500–159922
  • 1600–169922
  • 1700–179927
  • 1800–189919
  • 1900–199937
  • 2000–209927
  • 2100–219927
  • 2200–229930
  • 2300–239924
  • 2400–249925
  • 2500–259922
  • 2600–269921
  • 2700–279913
  • 2800–28998
  • 2900–29995
  • 3000–30997
  • 3100–31994
  • 3200–32993
  • 3300–33991
  • 3500–35992
  • 115
  • binary search105
  • combinatorics66
  • sortings62
  • number theory58
  • dfs and similar58
  • bitmasks58
  • graphs55
  • trees53
  • two pointers47
  • divide and conquer31
  • strings26
  • interactive24
  • games21
  • dsu21
  • geometry20
  • probabilities14
  • hashing13
  • shortest paths10
  • ternary search9
  • graph matchings7
  • matrices7
  • Other (6 tags)23
  • 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 28/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 28/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 10/day in 2026)

    83
    +46
    2593
    2025-08-07 17:35Atto Round 1 (Codeforces Round 1041, Div. 1 + Div. 2)277-352547
    2025-07-31 17:35Codeforces Round 1040 (Div. 1)184-222582
    2025-07-19 16:50Order Capital Round 1 (Codeforces Round 1038, Div. 1 + Div. 2)78+872604
    2025-07-06 17:35EPIC Institute of Technology Round Summer 2025 (Codeforces Round 1036, Div. 1 + Div. 2)354-652517
    2025-05-31 16:35Codeforces Round 1028 (Div. 1)101+492582
    2025-05-11 17:05Codeforces Round 1024 (Div. 1)53+1232533
    2025-03-10 17:15Codeforces Round 1008 (Div. 1)96+1092410