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yancouto

Open on Codeforces · Unique solved

Rating2401· Grandmaster

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
64
Unique solved
1,103
Submissions (all)
2,585
Years with activity
2015–2025

Solved by problem rating

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

  • Unrated374
  • 800–89924
  • 900–99918
  • 1000–109921
  • 1100–119925
  • 1200–129927
  • 1300–139940

Solved by topic

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

  • implementation215
  • dp177
  • math177
  • greedy158
  • data structures157
  • brute force122
  • constructive algorithms

Rating changes

2015

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

Jan
Feb
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May

Submission volume

Download all years PNG

2015

Download PNG

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

Jan
Feb
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Recent rated rounds

When (UTC)ContestRankΔNew
2018-04-07 18:35Divide by Zero 2018 and Codeforces Round 474 (Div. 1 + Div. 2, combined)95+82401
2018-03-04 17:35Codeforces Round 468 (Div. 1, based on Technocup 2018 Final Round)119-342393
2018-02-15 16:35ICM Technex 2018 and Codeforces Round 463 (Div. 1 + Div. 2, combined)160-342427
2017-12-23 16:05Codeforces Round 454 (Div. 1, based on Technocup 2018 Elimination Round 4)57+312461
1400–1499
32
  • 1500–159945
  • 1600–169965
  • 1700–179956
  • 1800–189943
  • 1900–199954
  • 2000–209948
  • 2100–219947
  • 2200–229952
  • 2300–239944
  • 2400–249929
  • 2500–259921
  • 2600–269912
  • 2700–27997
  • 2800–28994
  • 2900–29997
  • 3000–30994
  • 3100–31993
  • 3200–32991
  • 108
  • dfs and similar89
  • graphs87
  • binary search81
  • strings67
  • sortings66
  • number theory58
  • trees55
  • combinatorics46
  • dsu35
  • *special34
  • geometry31
  • bitmasks28
  • two pointers28
  • shortest paths23
  • hashing18
  • divide and conquer18
  • games17
  • probabilities12
  • string suffix structures11
  • flows9
  • matrices9
  • Other (8 tags)32
  • Jun
    Jul
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    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.

    2016

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

    Jan
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    Jun
    Jul
    Aug
    Sep
    Oct
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    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.

    2017

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

    Jan
    Feb
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    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.

    2018

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

    Jan
    Feb
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    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
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    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
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    Apr
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    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
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    LessMore (max 26/day in 2015)

    2016

    Download PNG

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

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    LessMore (max 31/day in 2016)

    2017

    Download PNG

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

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    LessMore (max 34/day in 2017)

    2018

    Download PNG

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

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    LessMore (max 31/day in 2018)

    2022

    Download PNG

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

    Jan
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    LessMore (max 2/day in 2022)

    2025

    Download PNG

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

    Jan
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    May
    Jun
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    LessMore (max 33/day in 2025)

    2017-12-19 17:35
    Codeforces Round 453 (Div. 1)
    99
    -37
    2430
    2017-11-17 16:35Codeforces Round 446 (Div. 1)98-302467
    2017-10-26 16:45Codeforces Round 443 (Div. 1)12+1582497
    2017-10-16 13:05Codeforces Round 441 (Div. 1, by Moscow Team Olympiad)80+182339
    2017-10-15 10:05Codeforces Round 440 (Div. 1, based on Technocup 2018 Elimination Round 2)116-452321
    2017-09-04 17:05Codeforces Round 432 (Div. 1, based on IndiaHacks Final Round 2017)46+672366
    2017-06-17 16:35Codeforces Round 419 (Div. 1)69+962299
    2017-05-20 20:05Codeforces Round 415 (Div. 1)261-922203