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Top rated · Stats

NBarykin

Open on Codeforces · Unique solved

Rating2192· 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
32
Unique solved
269
Submissions (all)
591
Years with activity
2019–2026

Solved by problem rating

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

  • Unrated15
  • 800–89925
  • 900–9998
  • 1000–109915
  • 1100–119914
  • 1200–12997
  • 1300–139915

Solved by topic

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

  • greedy113
  • math104
  • implementation76
  • constructive algorithms74
  • data structures48
  • dp42
  • brute force

Rating changes

2019

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

Jan
Feb
Mar
Apr
May

Submission volume

Download all years PNG

2019

Download PNG

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

Jan
Feb
Mar
Apr

Recent rated rounds

When (UTC)ContestRankΔNew
2021-03-21 13:20Технокубок 2021 - Финал40+732192
2020-11-29 09:05Technocup 2021 - Elimination Round 2112-952119
2020-06-13 17:05Codeforces Round 649 (Div. 2)26+1562214
2020-06-11 16:35Educational Codeforces Round 89 (Rated for Div. 2)469+72058
2020-06-04 17:05Codeforces Round 647 (Div. 1) - Thanks, Algo Muse!
1400–1499
16
  • 1500–159917
  • 1600–169916
  • 1700–179913
  • 1800–189915
  • 1900–199919
  • 2000–209920
  • 2100–219919
  • 2200–229911
  • 2300–23994
  • 2400–249912
  • 2500–25991
  • 2600–26992
  • 2700–27994
  • 2900–29991
  • 36
  • sortings33
  • binary search30
  • graphs28
  • number theory25
  • dfs and similar23
  • two pointers22
  • combinatorics19
  • trees16
  • bitmasks15
  • strings14
  • interactive11
  • shortest paths9
  • dsu8
  • games8
  • geometry5
  • divide and conquer5
  • hashing5
  • ternary search5
  • probabilities4
  • string suffix structures3
  • matrices2
  • Other (2 tags)2
  • Jun
    Jul
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    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.

    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
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    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
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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.

    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
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    Aug
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    Dec

    LessMore (max 11/day in 2019)

    2020

    Download PNG

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

    Jan
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    Jun
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    LessMore (max 23/day in 2020)

    2021

    Download PNG

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

    Jan
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    May
    Jun
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    LessMore (max 20/day in 2021)

    2022

    Download PNG

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

    Jan
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    LessMore (max 7/day in 2022)

    2025

    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 23/day in 2025)

    2026

    Download PNG

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

    Jan
    Feb
    Mar
    Apr
    May
    Jun
    Jul
    Aug
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    Dec

    LessMore (max 7/day in 2026)

    612
    +4
    2051
    2020-04-15 17:05Codeforces Round 635 (Div. 2)16+2112047
    2020-04-12 16:05Codeforces Round 633 (Div. 1)1359-871836
    2020-04-10 16:35Educational Codeforces Round 85 (Rated for Div. 2)876+201923
    2020-04-03 16:35Codeforces Round 631 (Div. 2) - Thanks, Denis aramis Shitov!635+171903
    2020-03-23 16:35Educational Codeforces Round 84 (Rated for Div. 2)548+641886
    2020-03-19 17:05Codeforces Global Round 72309-191822
    2020-03-09 16:35Educational Codeforces Round 83 (Rated for Div. 2)1045-131841