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WinterSpell

Open on Codeforces · Unique solved

Rating2125· 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
39
Unique solved
285
Submissions (all)
688
Years with activity
2020–2023

Solved by problem rating

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

  • Unrated86
  • 800–89927
  • 900–9997
  • 1000–10997
  • 1100–119910
  • 1200–129912
  • 1300–13996

Solved by topic

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

  • greedy90
  • math83
  • constructive algorithms57
  • dp50
  • implementation49
  • brute force46
  • data structures

Rating changes

2020

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

Jan
Feb
Mar
Apr
May

Submission volume

Download all years PNG

2020

Download PNG

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

Jan
Feb
Mar
Apr

Recent rated rounds

When (UTC)ContestRankΔNew
2023-02-09 16:35Codeforces Round 851 (Div. 2)100+572125
2023-02-05 15:05Codeforces Round 850 (Div. 1, based on VK Cup 2022 - Final Round)880-972068
2023-01-29 17:35TypeDB Forces 2023 (Div. 1 + Div. 2, Rated, Prizes!)735-232165
2023-01-03 17:05Hello 2023443+452188
2022-08-16 16:35Codeforces Round 814 (Div. 1)
1400–1499
9
  • 1500–15998
  • 1600–169914
  • 1700–17999
  • 1800–18997
  • 1900–19999
  • 2000–20997
  • 2100–21996
  • 2200–22995
  • 2300–23998
  • 2400–24995
  • 2500–25994
  • 2600–26998
  • 2700–27994
  • 2800–28993
  • 2900–29991
  • 3000–30995
  • 3100–31993
  • 3200–32995
  • 3300–33994
  • 3400–34994
  • 3500–35992
  • 43
  • binary search31
  • sortings29
  • graphs27
  • number theory22
  • trees21
  • dfs and similar15
  • combinatorics14
  • strings14
  • two pointers12
  • bitmasks12
  • shortest paths9
  • interactive9
  • dsu8
  • divide and conquer8
  • probabilities7
  • geometry7
  • hashing5
  • string suffix structures4
  • flows3
  • ternary search3
  • fft2
  • Other (4 tags)6
  • 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.

    May
    Jun
    Jul
    Aug
    Sep
    Oct
    Nov
    Dec

    LessMore (max 11/day in 2020)

    2021

    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 14/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
    Nov
    Dec

    LessMore (max 34/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 13/day in 2023)

    320
    +47
    2143
    2022-07-18 16:35Codeforces Round 809 (Div. 2)147+472096
    2022-07-16 16:35Codeforces Round 808 (Div. 1)794-1052049
    2021-06-25 17:50Codeforces Round 728 (Div. 1)336+132154
    2021-06-13 18:35Codeforces LATOKEN Round 1 (Div. 1 + Div. 2)439+332141
    2021-06-06 16:35Codeforces Round 724 (Div. 2)104+692108
    2021-06-04 16:35Educational Codeforces Round 110 (Rated for Div. 2)221+422039
    2021-05-20 16:35Codeforces Round 721 (Div. 2)457+101997