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Top rated · Stats

19992147

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
49
Unique solved
2,032
Submissions (all)
4,261
Years with activity
2017–2026

Solved by problem rating

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

  • Unrated383
  • 800–899145
  • 900–99976
  • 1000–109957
  • 1100–119956
  • 1200–129971
  • 1300–139962

Solved by topic

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

  • greedy644
  • math569
  • implementation455
  • dp404
  • constructive algorithms389
  • data structures345

Rating changes

2017

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

Jan
Feb
Mar
Apr
May

Submission volume

Download all years PNG

2017

Download PNG

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

Jan
Feb
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Apr

Recent rated rounds

When (UTC)ContestRankΔNew
2020-04-10 16:35Educational Codeforces Round 85 (Rated for Div. 2)23+2012119
2020-04-08 16:35Codeforces Round 632 (Div. 2)1400-201918
2020-03-31 16:05Codeforces Round 630 (Div. 2)714+301938
2020-03-14 16:35Codeforces Round 628 (Div. 2)2152-821908
2020-03-09 16:35Educational Codeforces Round 83 (Rated for Div. 2)
1400–1499
72
  • 1500–159996
  • 1600–1699109
  • 1700–179998
  • 1800–189994
  • 1900–199988
  • 2000–209989
  • 2100–219983
  • 2200–229994
  • 2300–239992
  • 2400–249997
  • 2500–259966
  • 2600–269943
  • 2700–279926
  • 2800–289910
  • 2900–29997
  • 3000–30997
  • 3100–31994
  • 3200–32994
  • 3300–33992
  • 3500–35991
  • brute force
    329
  • sortings243
  • graphs215
  • binary search203
  • dfs and similar198
  • number theory156
  • strings147
  • two pointers139
  • trees137
  • combinatorics126
  • bitmasks122
  • dsu81
  • shortest paths54
  • divide and conquer53
  • geometry48
  • hashing45
  • interactive44
  • games37
  • probabilities31
  • string suffix structures20
  • fft16
  • ternary search16
  • Other (9 tags)63
  • Jun
    Jul
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    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.

    2018

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

    Jan
    Feb
    Mar
    Apr
    May
    Jun
    Jul
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    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
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    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
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    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
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    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
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    Jun
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    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
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    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
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    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
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    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
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    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
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    LessMore (max 23/day in 2017)

    2018

    Download PNG

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

    Jan
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    LessMore (max 15/day in 2018)

    2019

    Download PNG

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

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    2020

    Download PNG

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

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    LessMore (max 208/day in 2020)

    2021

    Download PNG

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

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    LessMore (max 31/day in 2021)

    2022

    Download PNG

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

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    LessMore (max 40/day in 2022)

    2023

    Download PNG

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

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    2024

    Download PNG

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

    Jan
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    LessMore (max 22/day in 2024)

    2025

    Download PNG

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

    Jan
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    LessMore (max 18/day in 2025)

    2026

    Download PNG

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

    Jan
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    LessMore (max 4/day in 2026)

    329
    +29
    1990
    2020-03-07 11:35Codeforces Round 626 (Div. 1, based on Moscow Open Olympiad in Informatics)681-721961
    2020-03-04 16:35CodeCraft-20 (Div. 2)305+122033
    2020-03-03 16:50Ozon Tech Challenge 2020 (Div.1 + Div.2, Rated, T-shirts + prizes!)1577-662021
    2020-03-01 15:15Codeforces Round 625 (Div. 1, based on Technocup 2020 Final Round)340+542087
    2020-02-23 11:05Codeforces Round 622 (Div. 2)111+932033
    2020-02-15 15:05Codeforces Round 620 (Div. 2)312+591940
    2020-02-13 16:35Codeforces Round 619 (Div. 2)1224-351881