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Top rated · Stats

wang_zy

Open on Codeforces · Unique solved

Rating2119· 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
7
Unique solved
183
Submissions (all)
455
Years with activity
2018–2022

Solved by problem rating

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

  • Unrated127
  • 800–8991
  • 1000–10992
  • 1100–11992
  • 1200–12992
  • 1300–13991
  • 1400–14993

Solved by topic

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

  • dp23
  • math17
  • trees14
  • combinatorics13
  • data structures13
  • brute force12
  • greedy

Rating changes

2018

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

Jan
Feb
Mar
Apr
May

Submission volume

Download all years PNG

2018

Download PNG

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

Jan
Feb
Mar
Apr

Recent rated rounds

When (UTC)ContestRankΔNew
2022-03-06 12:10Codeforces Round 775 (Div. 1, based on Moscow Open Olympiad in Informatics)320+532119
2022-02-23 12:10Codeforces Round 773 (Div. 1)494+142066
2019-10-26 13:05Codeforces Round 596 (Div. 1, based on Technocup 2020 Elimination Round 2)139+1482052
2019-10-13 11:05Codeforces Round 592 (Div. 2)75+1561904
2019-09-15 12:35Codeforces Round 585 (Div. 2)
1500–1599
2
  • 1600–16991
  • 1800–18995
  • 1900–19996
  • 2000–20993
  • 2100–21993
  • 2200–229910
  • 2300–23994
  • 2400–24994
  • 2500–25991
  • 2700–27992
  • 2800–28991
  • 3100–31991
  • 3200–32991
  • 3300–33991
  • 12
  • dfs and similar10
  • implementation8
  • binary search8
  • sortings7
  • constructive algorithms6
  • bitmasks6
  • number theory6
  • hashing5
  • dsu4
  • probabilities4
  • string suffix structures3
  • strings3
  • graphs3
  • divide and conquer3
  • matrices2
  • ternary search2
  • two pointers2
  • fft2
  • flows2
  • *special2
  • geometry1
  • Other (1 tag)1
  • 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.

    2019

    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.

    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.

    May
    Jun
    Jul
    Aug
    Sep
    Oct
    Nov
    Dec

    LessMore (max 10/day in 2018)

    2019

    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 16/day in 2019)

    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 25/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)

    1088
    -17
    1748
    2019-09-04 11:35Codeforces Round 583 (Div. 1 + Div. 2, based on Olympiad of Metropolises)503+941765
    2019-04-06 13:35Codeforces Global Round 2517+16711671