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sszcdjr

Open on Codeforces · Unique solved

Rating2249· 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
21
Unique solved
138
Submissions (all)
746
Years with activity
2020–2025

Solved by problem rating

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

  • Unrated1
  • 800–89923
  • 900–9997
  • 1000–10998
  • 1100–11993
  • 1200–12994
  • 1300–13993

Solved by topic

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

  • greedy55
  • math53
  • dp50
  • brute force32
  • constructive algorithms29
  • implementation27
  • combinatorics

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
2022-07-08 16:35Educational Codeforces Round 131 (Rated for Div. 2)5+2142249
2022-04-09 16:35Educational Codeforces Round 126 (Rated for Div. 2)54+1292035
2022-03-22 16:45Educational Codeforces Round 125 (Rated for Div. 2)1043-471906
2021-12-27 16:35Educational Codeforces Round 120 (Rated for Div. 2)75+1531953
2021-12-24 17:05Codeforces Global Round 18
1400–1499
5
  • 1500–15994
  • 1600–16999
  • 1700–17993
  • 1800–18997
  • 1900–199911
  • 2000–20998
  • 2100–21998
  • 2200–22997
  • 2300–23994
  • 2400–24994
  • 2500–25996
  • 2600–26994
  • 2700–27993
  • 2800–28991
  • 2900–29991
  • 3100–31991
  • 3200–32992
  • 3300–33991
  • 26
  • data structures18
  • sortings17
  • bitmasks16
  • number theory13
  • binary search10
  • dfs and similar8
  • probabilities8
  • graphs8
  • trees7
  • two pointers6
  • strings5
  • geometry5
  • shortest paths5
  • dsu4
  • interactive4
  • matrices2
  • divide and conquer2
  • hashing2
  • fft1
  • games1
  • 2-sat1
  • Other (3 tags)3
  • 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.

    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.

    May
    Jun
    Jul
    Aug
    Sep
    Oct
    Nov
    Dec

    LessMore (max 7/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
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    Dec

    LessMore (max 18/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 292/day in 2022)

    2023

    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 19/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 3/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 6/day in 2025)

    2035
    -36
    1800
    2021-12-01 16:35Educational Codeforces Round 118 (Rated for Div. 2)302+861836
    2021-11-28 17:05Deltix Round, Autumn 2021 (open for everyone, rated, Div. 1 + Div. 2)1026+561750
    2021-11-26 13:15Codeforces Round 757 (Div. 2)2569-771694
    2021-11-14 08:20Codeforces Round 755 (Div. 2, based on Technocup 2022 Elimination Round 2)286+401771
    2021-09-12 17:05Codeforces Global Round 161184+721731
    2021-06-13 18:35Codeforces LATOKEN Round 1 (Div. 1 + Div. 2)616+1691659
    2021-05-28 16:35Codeforces Round 723 (Div. 2)2596+221490