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Top rated · Stats

yan-zp

Open on Codeforces · Unique solved

Rating2143· 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
65
Unique solved
1,101
Submissions (all)
1,802
Years with activity
2016–2026

Solved by problem rating

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

  • Unrated7
  • 800–89945
  • 900–99921
  • 1000–109932
  • 1100–119915
  • 1200–129927
  • 1300–139933

Solved by topic

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

  • math357
  • dp344
  • greedy333
  • data structures260
  • implementation221
  • combinatorics198
  • constructive algorithms

Rating changes

2016

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

Jan
Feb
Mar
Apr
May

Submission volume

Download all years PNG

2016

Download PNG

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

Jan
Feb
Mar
Apr

Recent rated rounds

When (UTC)ContestRankΔNew
2020-06-18 17:15Codeforces Global Round 81414-542143
2020-05-12 15:05Codeforces Round 641 (Div. 1)575-212197
2020-04-15 17:05Codeforces Round 635 (Div. 1)638-342218
2020-04-12 16:05Codeforces Round 633 (Div. 1)375+102252
2020-04-03 16:35Codeforces Round 631 (Div. 1) - Thanks, Denis aramis Shitov!267
1400–1499
33
  • 1500–159947
  • 1600–169940
  • 1700–179955
  • 1800–189952
  • 1900–199955
  • 2000–209963
  • 2100–219981
  • 2200–229981
  • 2300–239984
  • 2400–249991
  • 2500–259968
  • 2600–269941
  • 2700–279952
  • 2800–289919
  • 2900–299918
  • 3000–309913
  • 3100–319915
  • 3200–32996
  • 3300–33994
  • 3400–34992
  • 3500–35991
  • 184
  • brute force156
  • trees142
  • graphs134
  • dfs and similar131
  • number theory119
  • binary search118
  • sortings116
  • strings78
  • bitmasks75
  • two pointers56
  • divide and conquer51
  • probabilities47
  • dsu44
  • shortest paths33
  • geometry29
  • interactive25
  • hashing24
  • flows20
  • games16
  • matrices14
  • ternary search12
  • Other (9 tags)51
  • 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.

    2020

    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.

    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 2/day in 2016)

    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 46/day in 2019)

    2020

    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 30/day in 2020)

    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 4/day in 2023)

    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 13/day in 2026)

    +65
    2242
    2020-03-19 17:05Codeforces Global Round 7899-282177
    2020-03-07 11:35Codeforces Round 626 (Div. 1, based on Moscow Open Olympiad in Informatics)158+942205
    2020-03-04 16:35CodeCraft-20 (Div. 2)155+322111
    2020-03-03 16:50Ozon Tech Challenge 2020 (Div.1 + Div.2, Rated, T-shirts + prizes!)902-182079
    2020-03-01 15:15Codeforces Round 625 (Div. 1, based on Technocup 2020 Final Round)509-152097
    2020-02-23 18:35Codeforces Round 623 (Div. 1, based on VK Cup 2019-2020 - Elimination Round, Engine)330-362112
    2020-02-17 17:50Codeforces Round 621 (Div. 1 + Div. 2)406+312148