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Zunpet

Open on Codeforces · Unique solved

Rating2356· International 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
28
Unique solved
552
Submissions (all)
1,983
Years with activity
2021–2026

Solved by problem rating

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

  • Unrated7
  • 800–89926
  • 900–9998
  • 1000–10994
  • 1100–11997
  • 1200–12998
  • 1300–139911

Solved by topic

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

  • dp192
  • math178
  • data structures174
  • greedy110
  • brute force89
  • trees83
  • constructive algorithms

Rating changes

2021

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

Jan
Feb
Mar
Apr
May

Submission volume

Download all years PNG

2021

Download PNG

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

Jan
Feb
Mar
Apr

Recent rated rounds

When (UTC)ContestRankΔNew
2025-11-06 17:35Codeforces Global Round 30 (Div. 1 + Div. 2)448-312356
2024-10-20 11:05Codeforces Round 980 (Div. 1)287-102387
2024-08-30 17:05Codeforces Round 969 (Div. 1)217+222397
2024-06-09 17:35Codeforces Global Round 26227+492375
2024-04-30 17:05Codeforces Round 942 (Div. 1)274
1400–1499
13
  • 1500–15998
  • 1600–16996
  • 1700–179914
  • 1800–189925
  • 1900–199911
  • 2000–209913
  • 2100–219912
  • 2200–229916
  • 2300–239918
  • 2400–249929
  • 2500–259950
  • 2600–269947
  • 2700–279939
  • 2800–289933
  • 2900–299930
  • 3000–309935
  • 3100–319922
  • 3200–329916
  • 3300–339914
  • 3400–349914
  • 3500–359916
  • 79
  • combinatorics78
  • strings68
  • implementation65
  • dfs and similar62
  • binary search60
  • graphs57
  • number theory56
  • bitmasks55
  • string suffix structures46
  • sortings38
  • two pointers34
  • hashing33
  • probabilities33
  • divide and conquer32
  • dsu29
  • shortest paths18
  • games16
  • interactive16
  • geometry15
  • fft14
  • flows12
  • Other (6 tags)26
  • 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.

    2022

    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.

    2023

    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.

    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 6/day in 2021)

    2022

    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 2022)

    2023

    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 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 38/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 17/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 8/day in 2026)

    +30
    2326
    2024-03-30 17:35CodeTON Round 8 (Div. 1 + Div. 2, Rated, Prizes!)688-452296
    2024-03-16 17:00Codeforces Round 934 (Div. 1)209+492341
    2023-12-30 16:50Good Bye 2023247+892292
    2023-12-23 17:35Pinely Round 3 (Div. 1 + Div. 2)978-642203
    2023-11-25 17:20CodeTON Round 7 (Div. 1 + Div. 2, Rated, Prizes!)320+322267
    2023-09-30 17:35Codeforces Round 901 (Div. 1)337+232235
    2023-08-30 17:35Pinely Round 2 (Div. 1 + Div. 2)709-292212