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EternalAlexander

Open on Codeforces · Unique solved

Rating2834· International 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
31
Unique solved
755
Submissions (all)
2,160
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.

  • Unrated184
  • 800–89959
  • 900–99912
  • 1000–109929
  • 1100–119912
  • 1200–129919
  • 1300–139921

Solved by topic

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

  • math206
  • greedy195
  • implementation158
  • dp150
  • constructive algorithms115
  • brute force107
  • data structures

Rating changes

2018

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

Jan
Feb
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Apr
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
2023-09-30 17:35Codeforces Round 901 (Div. 1)31+672834
2023-07-23 17:05Codeforces Round 887 (Div. 1)54+292767
2023-02-05 15:05Codeforces Round 850 (Div. 1, based on VK Cup 2022 - Final Round)38+912738
2022-10-07 17:05Dytechlab Cup 202245+1022647
2022-07-31 16:35CodeTON Round 2 (Div. 1 + Div. 2, Rated, Prizes!)
1400–1499
18
  • 1500–159926
  • 1600–169928
  • 1700–179936
  • 1800–189925
  • 1900–199936
  • 2000–209934
  • 2100–219917
  • 2200–229924
  • 2300–239920
  • 2400–249918
  • 2500–259929
  • 2600–269919
  • 2700–279923
  • 2800–289913
  • 2900–299918
  • 3000–309918
  • 3100–31998
  • 3200–32993
  • 3300–33992
  • 3400–34992
  • 3500–35992
  • 101
  • sortings70
  • binary search69
  • graphs66
  • trees58
  • combinatorics55
  • dfs and similar54
  • number theory49
  • bitmasks48
  • two pointers43
  • strings38
  • dsu27
  • divide and conquer25
  • probabilities17
  • geometry16
  • shortest paths16
  • interactive13
  • games12
  • *special11
  • flows10
  • fft10
  • hashing10
  • Other (8 tags)28
  • 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
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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
    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.

    2024

    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
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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.

    May
    Jun
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    Aug
    Sep
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    Dec

    LessMore (max 19/day in 2018)

    2019

    Download PNG

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

    Jan
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    LessMore (max 19/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
    Feb
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    May
    Jun
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    LessMore (max 41/day in 2021)

    2022

    Download PNG

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

    Jan
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    Jun
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    LessMore (max 44/day in 2022)

    2023

    Download PNG

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

    Jan
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    May
    Jun
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    LessMore (max 43/day in 2023)

    2024

    Download PNG

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

    Jan
    Feb
    Mar
    Apr
    May
    Jun
    Jul
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    Sep
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    LessMore (max 24/day in 2024)

    2025

    Download PNG

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

    Jan
    Feb
    Mar
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    May
    Jun
    Jul
    Aug
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    Dec

    LessMore (max 2/day in 2025)

    67
    +101
    2545
    2020-12-19 11:35Codeforces Round 691 (Div. 1)169-22444
    2020-11-01 13:05Codeforces Round 680 (Div. 1, based on Moscow Team Olympiad)38+1642446
    2020-10-25 13:05Codeforces Round 679 (Div. 1, based on Technocup 2021 Elimination Round 1)282+32282
    2020-09-06 16:35Codeforces Round 668 (Div. 1)126+1182279
    2020-04-03 16:35Codeforces Round 631 (Div. 1) - Thanks, Denis aramis Shitov!733-392161
    2020-03-07 11:35Codeforces Round 626 (Div. 1, based on Moscow Open Olympiad in Informatics)267+242200
    2020-03-03 16:50Ozon Tech Challenge 2020 (Div.1 + Div.2, Rated, T-shirts + prizes!)443+282176