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Top rated · Stats

huan_yp

Open on Codeforces · Unique solved

Rating2310· 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
24
Unique solved
148
Submissions (all)
381
Years with activity
2021–2025

Solved by problem rating

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

  • 800–89923
  • 900–9998
  • 1000–10995
  • 1100–11993
  • 1200–12999
  • 1300–13999
  • 1400–14999

Solved by topic

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

  • math68
  • greedy65
  • implementation45
  • constructive algorithms41
  • dp40
  • data structures38
  • brute force

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
2023-05-08 14:05Codeforces Round 872 (Div. 1)55+2072310
2023-04-15 11:05Codeforces Round 866 (Div. 1)607-862103
2023-03-09 12:35Codeforces Round 857 (Div. 1)381-102189
2023-02-05 15:05Codeforces Round 850 (Div. 1, based on VK Cup 2022 - Final Round)572-452199
2022-10-23 09:50Codeforces Round 829 (Div. 1)
1500–1599
3
  • 1600–16995
  • 1700–17997
  • 1800–189910
  • 1900–199910
  • 2000–20996
  • 2100–21996
  • 2200–22998
  • 2300–23994
  • 2400–249910
  • 2500–25994
  • 2600–26993
  • 2700–27991
  • 2800–28993
  • 3000–30992
  • 32
  • sortings22
  • dfs and similar20
  • binary search19
  • graphs18
  • number theory17
  • trees16
  • combinatorics15
  • two pointers13
  • interactive9
  • bitmasks8
  • dsu6
  • geometry6
  • strings6
  • probabilities5
  • shortest paths5
  • fft4
  • graph matchings4
  • divide and conquer3
  • matrices3
  • games3
  • meet-in-the-middle2
  • Other (7 tags)7
  • 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.

    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.

    May
    Jun
    Jul
    Aug
    Sep
    Oct
    Nov
    Dec

    LessMore (max 23/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 18/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 20/day in 2023)

    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 3/day in 2025)

    286
    +37
    2244
    2022-10-15 16:50Codeforces Global Round 23366+612207
    2022-05-08 16:35Codeforces Round 789 (Div. 1)620-722146
    2022-03-20 13:50Codeforces Round 778 (Div. 1 + Div. 2, based on Technocup 2022 Final Round)322+462218
    2022-03-06 12:10Codeforces Round 775 (Div. 1, based on Moscow Open Olympiad in Informatics)429-152172
    2022-02-12 17:05Codeforces Global Round 19446+352187
    2021-12-16 15:35Codeforces Round 761 (Div. 2)71+602152
    2021-12-01 16:35Educational Codeforces Round 118 (Rated for Div. 2)210+172092