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neither

Open on Codeforces · Unique solved

Rating2177· 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
35
Unique solved
141
Submissions (all)
564
Years with activity
2015–2023

Solved by problem rating

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

  • 800–8996
  • 900–9996
  • 1000–10994
  • 1100–11993
  • 1200–12999
  • 1300–13999
  • 1400–14995

Solved by topic

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

  • implementation47
  • greedy46
  • math35
  • data structures31
  • brute force24
  • dp24
  • dfs and similar

Rating changes

2015

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

Jan
Feb
Mar
Apr
May

Submission volume

Download all years PNG

2015

Download PNG

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

Jan
Feb
Mar
Apr

Recent rated rounds

When (UTC)ContestRankΔNew
2020-04-03 16:35Codeforces Round 631 (Div. 1) - Thanks, Denis aramis Shitov!637-242177
2018-09-02 16:35Manthan, Codefest 18 (rated, Div. 1 + Div. 2)502-562201
2018-04-17 16:05Tinkoff Internship Warmup Round 2018 and Codeforces Round 475 (Div. 1)86+442257
2018-03-24 17:50VK Cup 2018 - Round 2200-1002213
2018-03-10 17:35VK Cup 2018 - Round 1
1500–1599
6
  • 1600–169919
  • 1700–179910
  • 1800–189911
  • 1900–19999
  • 2000–20994
  • 2100–21995
  • 2200–22996
  • 2300–23996
  • 2400–24994
  • 2500–25995
  • 2600–26994
  • 2700–27992
  • 2800–28994
  • 2900–29993
  • 3000–30991
  • 22
  • graphs19
  • trees18
  • strings17
  • sortings17
  • constructive algorithms16
  • binary search13
  • number theory11
  • bitmasks10
  • dsu9
  • combinatorics9
  • two pointers6
  • games6
  • divide and conquer6
  • geometry5
  • hashing4
  • *special4
  • probabilities3
  • shortest paths2
  • flows2
  • string suffix structures1
  • interactive1
  • 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.

    2016

    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.

    2017

    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.

    2018

    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.

    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.

    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 3/day in 2015)

    2016

    Download PNG

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

    Jan
    Feb
    Mar
    Apr
    May
    Jun
    Jul
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    LessMore (max 25/day in 2016)

    2017

    Download PNG

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

    Jan
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    May
    Jun
    Jul
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    LessMore (max 10/day in 2017)

    2018

    Download PNG

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

    Jan
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    May
    Jun
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    LessMore (max 80/day in 2018)

    2020

    Download PNG

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

    Jan
    Feb
    Mar
    Apr
    May
    Jun
    Jul
    Aug
    Sep
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    LessMore (max 4/day in 2020)

    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 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
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    Dec

    LessMore (max 6/day in 2023)

    60
    +9
    2313
    2018-03-04 17:35Codeforces Round 468 (Div. 1, based on Technocup 2018 Final Round)65+612304
    2018-02-14 14:05Codeforces Round 462 (Div. 1)172-142243
    2018-01-20 18:35Codecraft-18 and Codeforces Round 458 (Div. 1 + Div. 2, combined)157+292257
    2018-01-08 17:15Hello 2018370-182228
    2017-12-02 16:20Codeforces Round 449 (Div. 1)41+532246
    2017-10-26 16:45Codeforces Round 443 (Div. 1)169-222193
    2017-10-16 13:05Codeforces Round 441 (Div. 1, by Moscow Team Olympiad)153-142215