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Top rated · Stats

hyjhyj

Open on Codeforces · Unique solved

Rating2434· Grandmaster

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
678
Submissions (all)
1,410
Years with activity
2018–2025

Solved by problem rating

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

  • Unrated54
  • 800–89921
  • 900–9992
  • 1000–10994
  • 1100–119913
  • 1200–129914
  • 1300–13999

Solved by topic

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

  • dp209
  • math198
  • data structures176
  • greedy157
  • constructive algorithms119
  • graphs108
  • combinatorics

Rating changes

2018

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

Jan
Feb
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May

Submission volume

Download all years PNG

2018

Download PNG

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

Jan
Feb
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Apr

Recent rated rounds

When (UTC)ContestRankΔNew
2021-03-21 15:35Codeforces Round 709 (Div. 1, based on Technocup 2021 Final Round)35+1912434
2021-03-10 14:05Codeforces Round 706 (Div. 1)152+1322243
2020-12-20 17:05Codeforces Round 692 (Div. 1, based on Technocup 2021 Elimination Round 3)717-942111
2020-12-19 11:35Codeforces Round 691 (Div. 1)348-112205
2020-11-29 09:05Codeforces Round 687 (Div. 1, based on Technocup 2021 Elimination Round 2)
1400–1499
13
  • 1500–159914
  • 1600–169916
  • 1700–179917
  • 1800–189924
  • 1900–199917
  • 2000–209916
  • 2100–219918
  • 2200–229925
  • 2300–239932
  • 2400–249950
  • 2500–259934
  • 2600–269934
  • 2700–279945
  • 2800–289935
  • 2900–299933
  • 3000–309933
  • 3100–319932
  • 3200–329925
  • 3300–339928
  • 3400–349911
  • 3500–35999
  • 93
  • trees92
  • brute force86
  • dfs and similar85
  • implementation84
  • binary search78
  • number theory69
  • bitmasks59
  • sortings56
  • divide and conquer42
  • two pointers35
  • dsu34
  • shortest paths33
  • probabilities28
  • strings27
  • fft26
  • flows24
  • geometry19
  • interactive17
  • hashing15
  • string suffix structures14
  • matrices13
  • Other (6 tags)37
  • Jun
    Jul
    Aug
    Sep
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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.

    2019

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

    Jan
    Feb
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    Apr
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    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.

    2020

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

    Jan
    Feb
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    Jun
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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
    Feb
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    Jun
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    Aug
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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.

    2022

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

    Jan
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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
    Mar
    Apr
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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.

    2025

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

    Jan
    Feb
    Mar
    Apr
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    Jun
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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.

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    LessMore (max 14/day in 2018)

    2019

    Download PNG

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

    Jan
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    LessMore (max 21/day in 2019)

    2020

    Download PNG

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

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    LessMore (max 19/day in 2020)

    2021

    Download PNG

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

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    LessMore (max 15/day in 2021)

    2022

    Download PNG

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

    Jan
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    LessMore (max 16/day in 2022)

    2023

    Download PNG

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

    Jan
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    LessMore (max 41/day in 2023)

    2025

    Download PNG

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

    Jan
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    LessMore (max 6/day in 2025)

    161
    +101
    2216
    2020-11-01 13:05Codeforces Round 680 (Div. 1, based on Moscow Team Olympiad)876-1112115
    2020-10-17 15:35Codeforces Raif Round 1 (Div. 1 + Div. 2)543+42226
    2020-09-30 17:20Grakn Forces 2020226+972222
    2020-05-12 15:05Codeforces Round 641 (Div. 1)331+832125
    2020-04-10 16:35Educational Codeforces Round 85 (Rated for Div. 2)180+942042
    2020-03-23 16:35Educational Codeforces Round 84 (Rated for Div. 2)1716-491948
    2020-03-07 11:35Codeforces Round 626 (Div. 2, based on Moscow Open Olympiad in Informatics)29+1401997