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Top rated · Stats

negativez2

Open on Codeforces · Unique solved

Rating2406· 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
53
Unique solved
733
Submissions (all)
2,334
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.

  • Unrated96
  • 800–89957
  • 900–99917
  • 1000–109925
  • 1100–119917
  • 1200–129927
  • 1300–139928

Solved by topic

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

  • greedy175
  • math173
  • dp159
  • implementation157
  • data structures127
  • brute force109
  • constructive algorithms

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
2021-12-29 17:35Good Bye 2021: 2022 is NEAR138+1022406
2020-10-17 15:35Codeforces Raif Round 1 (Div. 1 + Div. 2)106+1432304
2020-09-06 16:35Codeforces Round 668 (Div. 1)425+192161
2020-07-24 16:35Codeforces Round 659 (Div. 1)490+152142
2020-07-21 16:35Codeforces Round 658 (Div. 1)493
1400–1499
20
  • 1500–159931
  • 1600–169943
  • 1700–179943
  • 1800–189934
  • 1900–199948
  • 2000–209950
  • 2100–219943
  • 2200–229940
  • 2300–239924
  • 2400–249930
  • 2500–259926
  • 2600–269912
  • 2700–279911
  • 2800–28995
  • 2900–29994
  • 3000–30991
  • 3200–32991
  • 101
  • graphs85
  • dfs and similar78
  • sortings70
  • trees70
  • binary search61
  • strings59
  • number theory57
  • bitmasks39
  • two pointers37
  • geometry34
  • dsu28
  • combinatorics28
  • divide and conquer24
  • shortest paths21
  • hashing16
  • interactive13
  • flows10
  • games8
  • ternary search8
  • *special7
  • graph matchings7
  • Other (9 tags)29
  • 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
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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.

    2020

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

    Jan
    Feb
    Mar
    Apr
    May
    Jun
    Jul
    Aug
    Sep
    Oct
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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.

    2021

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

    Jan
    Feb
    Mar
    Apr
    May
    Jun
    Jul
    Aug
    Sep
    Oct
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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
    Feb
    Mar
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    May
    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.

    2023

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

    Jan
    Feb
    Mar
    Apr
    May
    Jun
    Jul
    Aug
    Sep
    Oct
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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
    May
    Jun
    Jul
    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.

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    LessMore (max 38/day in 2018)

    2019

    Download PNG

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

    Jan
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    LessMore (max 30/day in 2019)

    2020

    Download PNG

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

    Jan
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    LessMore (max 22/day in 2020)

    2021

    Download PNG

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

    Jan
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    LessMore (max 30/day in 2021)

    2022

    Download PNG

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

    Jan
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    LessMore (max 26/day in 2022)

    2023

    Download PNG

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

    Jan
    Feb
    Mar
    Apr
    May
    Jun
    Jul
    Aug
    Sep
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    LessMore (max 22/day in 2023)

    2025

    Download PNG

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

    Jan
    Feb
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    May
    Jun
    Jul
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    LessMore (max 29/day in 2025)

    +24
    2127
    2020-07-04 17:15Codeforces Global Round 91286-192103
    2020-06-04 17:05Codeforces Round 647 (Div. 1) - Thanks, Algo Muse!985-952122
    2020-04-15 17:05Codeforces Round 635 (Div. 1)355+402217
    2020-04-12 16:05Codeforces Round 633 (Div. 1)620-232177
    2020-03-19 17:05Codeforces Global Round 71378-802200
    2020-03-03 16:50Ozon Tech Challenge 2020 (Div.1 + Div.2, Rated, T-shirts + prizes!)112+1362280
    2019-09-04 11:35Codeforces Round 583 (Div. 1 + Div. 2, based on Olympiad of Metropolises)247+362144