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isirazeev

Open on Codeforces · Unique solved

Rating2206· 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
124
Unique solved
1,238
Submissions (all)
3,502
Years with activity
2021–2026

Solved by problem rating

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

  • Unrated149
  • 800–899297
  • 900–99967
  • 1000–109950
  • 1100–119972
  • 1200–129958
  • 1300–139951

Solved by topic

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

  • greedy516
  • math459
  • implementation312
  • constructive algorithms284
  • brute force241
  • dp187
  • data structures

Rating changes

2021

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

2021

Download PNG

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

Jan
Feb
Mar
Apr

Recent rated rounds

When (UTC)ContestRankΔNew
2025-03-17 16:35Educational Codeforces Round 176 (Rated for Div. 2)24+1432206
2025-02-18 16:35Educational Codeforces Round 174 (Rated for Div. 2)207+392063
2025-01-26 17:05Ethflow Round 1 (Codeforces Round 1001, Div. 1 + Div. 2)1213-32024
2025-01-22 14:05Codeforces Round 1000 (Div. 2)180+762027
2025-01-12 16:35Codeforces Round 996 (Div. 2)
1400–1499
62
  • 1500–159937
  • 1600–169944
  • 1700–179944
  • 1800–189947
  • 1900–199953
  • 2000–209932
  • 2100–219924
  • 2200–229929
  • 2300–239923
  • 2400–249931
  • 2500–259924
  • 2600–269913
  • 2700–27995
  • 2800–28997
  • 2900–29995
  • 3000–30994
  • 3100–31992
  • 3200–32994
  • 3300–33992
  • 3400–34991
  • 3500–35991
  • 182
  • sortings166
  • binary search138
  • number theory101
  • two pointers78
  • strings77
  • graphs76
  • bitmasks76
  • dfs and similar68
  • trees68
  • combinatorics61
  • geometry40
  • dsu37
  • games35
  • divide and conquer28
  • interactive25
  • *special18
  • shortest paths17
  • probabilities15
  • graph matchings10
  • hashing9
  • matrices7
  • Other (8 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.

    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
    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.

    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
    Jul
    Aug
    Sep
    Oct
    Nov
    Dec

    LessMore (max 31/day in 2021)

    2022

    Download PNG

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

    Jan
    Feb
    Mar
    Apr
    May
    Jun
    Jul
    Aug
    Sep
    Oct
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    Dec

    LessMore (max 41/day in 2022)

    2023

    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 42/day in 2023)

    2024

    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 40/day in 2024)

    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 24/day in 2025)

    2026

    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 19/day in 2026)

    4061
    -133
    1951
    2025-01-04 17:05Hello 2025669+522084
    2024-12-24 16:35Educational Codeforces Round 173 (Rated for Div. 2)722-442032
    2024-12-19 17:35Codeforces Global Round 281480-682076
    2024-12-02 16:35Educational Codeforces Round 172 (Rated for Div. 2)60+912144
    2024-11-09 17:35Refact.ai Match 1 (Codeforces Round 985)1311-612053
    2024-07-18 16:35Codeforces Round 959 sponsored by NEAR (Div. 1 + Div. 2)752+22114
    2023-12-18 16:35Educational Codeforces Round 160 (Rated for Div. 2)50+1082112