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Thinkin

Open on Codeforces · Unique solved

Rating2169· 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
9
Unique solved
34
Submissions (all)
73
Years with activity
2022–2026

Solved by problem rating

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

  • 800–89911
  • 900–9993
  • 1000–10991
  • 1100–11992
  • 1200–12993
  • 1300–13991
  • 1400–14993

Solved by topic

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

  • math15
  • greedy13
  • implementation11
  • brute force9
  • constructive algorithms6
  • data structures5

Rating changes

2022

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

Jan
Feb
Mar
Apr
May

Submission volume

Download all years PNG

2022

Download PNG

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

Jan
Feb
Mar
Apr

Recent rated rounds

When (UTC)ContestRankΔNew
2026-03-28 17:15Nebius Round 2 (Codeforces Round 1088, Div. 1 + Div. 2)49+2632169
2022-05-14 11:35Codeforces Round 791 (Div. 2)248+581906
2022-05-13 16:35Educational Codeforces Round 128 (Rated for Div. 2)295+751848
2022-04-22 16:35Educational Codeforces Round 127 (Rated for Div. 2)972+421773
2022-03-27 16:35Codeforces Round 779 (Div. 2)
1600–1699
4
  • 1700–17991
  • 1900–19992
  • 2000–20991
  • 2100–21991
  • 2800–28991
  • sortings
    5
  • binary search4
  • dp4
  • strings4
  • dfs and similar3
  • graphs3
  • bitmasks3
  • hashing2
  • number theory2
  • two pointers1
  • combinatorics1
  • shortest paths1
  • dsu1
  • flows1
  • graph matchings1
  • 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.

    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 9/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 3/day in 2023)

    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 13/day in 2026)

    240
    +219
    1731
    2022-03-20 13:50Codeforces Round 778 (Div. 1 + Div. 2, based on Technocup 2022 Final Round)3210+671512
    2022-03-08 16:50Codeforces Round 776 (Div. 3)184+3211445
    2022-01-31 16:35Educational Codeforces Round 122 (Rated for Div. 2)435+4661124
    2022-01-10 16:50Codeforces Round 764 (Div. 3)212+658658