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syzf2222

Open on Codeforces · Unique solved

Rating2287· 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
40
Unique solved
899
Submissions (all)
2,097
Years with activity
2020–2024

Solved by problem rating

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

  • Unrated84
  • 800–89951
  • 900–99917
  • 1000–109910
  • 1100–119916
  • 1200–129911
  • 1300–139920

Solved by topic

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

  • dp271
  • math266
  • greedy242
  • data structures223
  • constructive algorithms175
  • combinatorics118
  • trees

Rating changes

2020

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

Jan
Feb
Mar
Apr
May

Submission volume

Download all years PNG

2020

Download PNG

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

Jan
Feb
Mar
Apr

Recent rated rounds

When (UTC)ContestRankΔNew
2024-11-30 17:35Rayan Programming Contest 2024 - Selection (Codeforces Round 989, Div. 1 + Div. 2)246+752287
2024-08-11 17:35EPIC Institute of Technology Round August 2024 (Div. 1 + Div. 2)3118-1832212
2024-07-28 17:35Pinely Round 4 (Div. 1 + Div. 2)442-232395
2023-07-11 17:35Codeforces Round 884 (Div. 1 + Div. 2)479-582418
2023-06-24 17:05CodeTON Round 5 (Div. 1 + Div. 2, Rated, Prizes!)
1400–1499
19
  • 1500–159926
  • 1600–169922
  • 1700–179921
  • 1800–189924
  • 1900–199932
  • 2000–209936
  • 2100–219932
  • 2200–229930
  • 2300–239937
  • 2400–249955
  • 2500–259950
  • 2600–269951
  • 2700–279944
  • 2800–289940
  • 2900–299928
  • 3000–309940
  • 3100–319928
  • 3200–329925
  • 3300–339928
  • 3400–349912
  • 3500–359910
  • 110
  • graphs109
  • brute force107
  • implementation104
  • dfs and similar91
  • binary search85
  • sortings82
  • bitmasks78
  • number theory77
  • strings48
  • two pointers46
  • divide and conquer44
  • probabilities41
  • dsu36
  • interactive32
  • flows27
  • fft26
  • geometry23
  • games23
  • shortest paths23
  • string suffix structures18
  • hashing17
  • Other (8 tags)47
  • 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.

    2021

    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.

    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.

    May
    Jun
    Jul
    Aug
    Sep
    Oct
    Nov
    Dec

    LessMore (max 23/day in 2020)

    2021

    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 27/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 21/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 21/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 13/day in 2024)

    114
    +75
    2476
    2023-01-03 17:05Hello 2023222+462401
    2022-12-30 17:05Good Bye 2022: 2023 is NEAR213+832355
    2022-12-17 17:05Polynomial Round 2022 (Div. 1 + Div. 2, Rated, Prizes!)243+552272
    2022-10-23 09:50Codeforces Round 829 (Div. 1)693-812217
    2022-10-15 16:50Codeforces Global Round 23390+202298
    2022-10-07 17:05Dytechlab Cup 2022142+1162278
    2022-07-16 16:35Codeforces Round 808 (Div. 1)761-1012162