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ArshiaDadras

Open on Codeforces · Unique solved

Rating2208· 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
75
Unique solved
2,375
Submissions (all)
6,671
Years with activity
2016–2025

Solved by problem rating

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

  • Unrated140
  • 800–899250
  • 900–999130
  • 1000–1099150
  • 1100–1199131
  • 1200–1299138
  • 1300–1399109

Solved by topic

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

  • implementation837
  • math566
  • greedy520
  • dp435
  • data structures355
  • brute force350
  • constructive algorithms

Rating changes

2016

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

Jan
Feb
Mar
Apr
May

Submission volume

Download all years PNG

2016

Download PNG

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

Jan
Feb
Mar
Apr

Recent rated rounds

When (UTC)ContestRankΔNew
2020-08-30 16:35Codeforces Round 666 (Div. 1)624-352208
2020-08-16 17:35Codeforces Global Round 10362+322243
2020-05-16 13:35Codeforces Round 643 (Div. 2)27+1502211
2020-05-12 15:05Codeforces Round 641 (Div. 1)462+642061
2020-04-26 16:35Educational Codeforces Round 86 (Rated for Div. 2)1316
1400–1499
106
  • 1500–1599109
  • 1600–1699104
  • 1700–1799102
  • 1800–189996
  • 1900–1999106
  • 2000–209998
  • 2100–219999
  • 2200–229995
  • 2300–239983
  • 2400–249990
  • 2500–259968
  • 2600–269945
  • 2700–279939
  • 2800–289922
  • 2900–299916
  • 3000–309916
  • 3100–319916
  • 3200–32997
  • 3300–33992
  • 3400–34994
  • 3500–35994
  • 288
  • dfs and similar231
  • sortings223
  • graphs222
  • strings196
  • trees187
  • binary search180
  • number theory159
  • combinatorics119
  • bitmasks98
  • dsu82
  • two pointers79
  • *special58
  • shortest paths57
  • geometry55
  • hashing54
  • divide and conquer51
  • probabilities41
  • games34
  • interactive26
  • string suffix structures23
  • matrices21
  • Other (9 tags)79
  • 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
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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.

    2019

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

    Jan
    Feb
    Mar
    Apr
    May
    Jun
    Jul
    Aug
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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.

    2020

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

    Jan
    Feb
    Mar
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    Jun
    Jul
    Aug
    Sep
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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.

    2021

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

    Jan
    Feb
    Mar
    Apr
    May
    Jun
    Jul
    Aug
    Sep
    Oct
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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
    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
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    May
    Jun
    Jul
    Aug
    Sep
    Oct
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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.

    2024

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

    Jan
    Feb
    Mar
    Apr
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    Jun
    Jul
    Aug
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    Oct
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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.

    2025

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

    Jan
    Feb
    Mar
    Apr
    May
    Jun
    Jul
    Aug
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    Oct
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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.

    May
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    LessMore (max 41/day in 2016)

    2017

    Download PNG

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

    Jan
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    LessMore (max 28/day in 2017)

    2018

    Download PNG

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

    Jan
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    LessMore (max 58/day in 2018)

    2019

    Download PNG

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

    Jan
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    LessMore (max 132/day in 2019)

    2020

    Download PNG

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

    Jan
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    LessMore (max 48/day in 2020)

    2021

    Download PNG

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

    Jan
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    LessMore (max 16/day in 2021)

    2022

    Download PNG

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

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    LessMore (max 6/day in 2022)

    2023

    Download PNG

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

    Jan
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    LessMore (max 12/day in 2023)

    2024

    Download PNG

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

    Jan
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    LessMore (max 7/day in 2024)

    2025

    Download PNG

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

    Jan
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    LessMore (max 10/day in 2025)

    -33
    1997
    2020-04-12 16:05Codeforces Round 633 (Div. 1)1220-882030
    2020-03-07 11:35Codeforces Round 626 (Div. 1, based on Moscow Open Olympiad in Informatics)501-432118
    2020-03-03 16:50Ozon Tech Challenge 2020 (Div.1 + Div.2, Rated, T-shirts + prizes!)582+42161
    2020-03-01 15:15Codeforces Round 625 (Div. 1, based on Technocup 2020 Final Round)307+392157
    2020-02-23 18:35Codeforces Round 623 (Div. 1, based on VK Cup 2019-2020 - Elimination Round, Engine)363-532118
    2020-01-19 15:35Codeforces Round 614 (Div. 1)447-362171
    2020-01-05 16:05Codeforces Round 612 (Div. 1)513-652207