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Top rated · Stats

Igor_2017

Open on Codeforces · Unique solved

Rating2329· International 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
154
Unique solved
6,179
Submissions (all)
10,975
Years with activity
2018–2026

Solved by problem rating

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

  • Unrated357
  • 800–899856
  • 900–999296
  • 1000–1099343
  • 1100–1199354
  • 1200–1299384
  • 1300–1399388

Solved by topic

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

  • greedy2,173
  • implementation2,166
  • math1,948
  • brute force1,172
  • constructive algorithms1,123
  • dp975
  • sortings

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
2022-08-16 16:35Codeforces Round 814 (Div. 1)142+802329
2022-07-16 16:35Codeforces Round 808 (Div. 1)208+672249
2022-05-19 16:35Codeforces Round 792 (Div. 1 + Div. 2)1502-1222182
2022-04-19 16:35Codeforces Round 783 (Div. 1)185+652304
2022-03-24 16:35CodeTON Round 1 (Div. 1 + Div. 2, Rated, Prizes!)
1400–1499
371
  • 1500–1599401
  • 1600–1699436
  • 1700–1799422
  • 1800–1899402
  • 1900–1999418
  • 2000–2099311
  • 2100–2199143
  • 2200–2299181
  • 2300–239945
  • 2400–249933
  • 2500–259922
  • 2600–269912
  • 2700–27992
  • 2800–28992
  • 772
  • data structures755
  • binary search625
  • strings512
  • number theory483
  • dfs and similar444
  • graphs428
  • two pointers353
  • combinatorics295
  • bitmasks286
  • trees279
  • dsu176
  • geometry144
  • shortest paths121
  • games120
  • interactive101
  • *special92
  • divide and conquer91
  • hashing79
  • probabilities57
  • ternary search36
  • graph matchings24
  • Other (10 tags)146
  • Jun
    Jul
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    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.

    2019

    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.

    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
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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
    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.

    2024

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

    Jan
    Feb
    Mar
    Apr
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    Jun
    Jul
    Aug
    Sep
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    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
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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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    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.

    May
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    LessMore (max 24/day in 2018)

    2019

    Download PNG

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

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    LessMore (max 45/day in 2019)

    2020

    Download PNG

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

    Jan
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    LessMore (max 31/day in 2020)

    2021

    Download PNG

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

    Jan
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    LessMore (max 42/day in 2021)

    2022

    Download PNG

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

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    LessMore (max 48/day in 2022)

    2023

    Download PNG

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

    Jan
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    LessMore (max 13/day in 2023)

    2024

    Download PNG

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

    Jan
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    LessMore (max 13/day in 2024)

    2025

    Download PNG

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

    Jan
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    LessMore (max 20/day in 2025)

    2026

    Download PNG

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

    Jan
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    LessMore (max 53/day in 2026)

    507
    +6
    2239
    2022-03-20 11:15Технокубок 2022 - Финал87-362233
    2022-01-22 16:35Codeforces Round 767 (Div. 1)372-42269
    2022-01-03 16:50Hello 2022202+1022273
    2021-12-29 17:35Good Bye 2021: 2022 is NEAR395+692171
    2021-12-28 15:35Codeforces Round 763 (Div. 2)167+232102
    2021-12-27 16:35Educational Codeforces Round 120 (Rated for Div. 2)291-12079
    2021-12-24 17:05Codeforces Global Round 181035-392080