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aZvezda

Open on Codeforces · Unique solved

Rating2123· 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
41
Unique solved
497
Submissions (all)
1,742
Years with activity
2019–2024

Solved by problem rating

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

  • Unrated8
  • 800–89933
  • 900–99911
  • 1000–109918
  • 1100–119915
  • 1200–129918
  • 1300–139919

Solved by topic

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

  • greedy159
  • math148
  • dp121
  • implementation120
  • data structures118
  • constructive algorithms97

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
2023-07-29 17:05Codeforces Round 889 (Div. 1)464+152123
2023-05-14 16:35Codeforces Round 873 (Div. 1)465-192108
2023-05-08 14:05Codeforces Round 872 (Div. 1)549-462127
2022-04-23 17:05Codeforces Global Round 20652-122173
2021-12-29 17:35Good Bye 2021: 2022 is NEAR590+16
1400–1499
27
  • 1500–159924
  • 1600–169917
  • 1700–179927
  • 1800–189931
  • 1900–199933
  • 2000–209946
  • 2100–219946
  • 2200–229941
  • 2300–239936
  • 2400–249928
  • 2500–259911
  • 2600–26993
  • 2700–27993
  • 2800–28992
  • dfs and similar
    65
  • binary search64
  • brute force64
  • trees61
  • graphs60
  • sortings48
  • number theory44
  • strings41
  • two pointers33
  • combinatorics32
  • dsu27
  • bitmasks26
  • divide and conquer18
  • shortest paths14
  • games13
  • hashing12
  • interactive11
  • probabilities10
  • geometry10
  • string suffix structures7
  • *special6
  • matrices6
  • Other (7 tags)15
  • 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
    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
    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.

    May
    Jun
    Jul
    Aug
    Sep
    Oct
    Nov
    Dec

    LessMore (max 28/day in 2019)

    2020

    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 53/day in 2020)

    2021

    Download PNG

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

    Jan
    Feb
    Mar
    Apr
    May
    Jun
    Jul
    Aug
    Sep
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    Dec

    LessMore (max 21/day in 2021)

    2022

    Download PNG

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

    Jan
    Feb
    Mar
    Apr
    May
    Jun
    Jul
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    Dec

    LessMore (max 12/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 12/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 2/day in 2024)

    2185
    2021-10-25 08:35Codeforces Round 751 (Div. 1)300+22169
    2021-10-17 13:20Codeforces Round 749 (Div. 1 + Div. 2, based on Technocup 2022 Elimination Round 1)1052-802167
    2020-12-06 17:35Codeforces Global Round 12368+322247
    2020-11-17 16:50Codeforces Round 684 (Div. 1)572-622215
    2020-11-15 17:05Codeforces Round 683 (Div. 1, by Meet IT)219+442277
    2020-11-02 16:35Codeforces Round 681 (Div. 1, based on VK Cup 2019-2020 - Final)660-882233
    2020-11-01 13:05Codeforces Round 680 (Div. 1, based on Moscow Team Olympiad)144+772321