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Arti1990

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
60
Unique solved
694
Submissions (all)
1,638
Years with activity
2011–2026

Solved by problem rating

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

  • Unrated158
  • 800–89952
  • 900–99922
  • 1000–109916
  • 1100–119924
  • 1200–129922
  • 1300–139924

Solved by topic

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

  • greedy191
  • implementation171
  • math147
  • constructive algorithms113
  • dp106
  • data structures98
  • brute force

Rating changes

2011

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

Jan
Feb
Mar
Apr
May

Submission volume

Download all years PNG

2011

Download PNG

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

Jan
Feb
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Apr

Recent rated rounds

When (UTC)ContestRankΔNew
2025-01-26 17:05Ethflow Round 1 (Codeforces Round 1001, Div. 1 + Div. 2)402+682208
2024-03-30 17:35CodeTON Round 8 (Div. 1 + Div. 2, Rated, Prizes!)472+512140
2024-01-27 16:45Codeforces Round 921 (Div. 1)342+772089
2024-01-13 16:35Codeforces Round 919 (Div. 2)1023-582012
2023-04-20 16:35Educational Codeforces Round 147 (Rated for Div. 2)
1400–1499
35
  • 1500–159934
  • 1600–169942
  • 1700–179939
  • 1800–189951
  • 1900–199937
  • 2000–209934
  • 2100–219927
  • 2200–229925
  • 2300–239913
  • 2400–249913
  • 2500–25998
  • 2600–269912
  • 2700–27993
  • 2800–28991
  • 2900–29991
  • 3000–30991
  • 83
  • binary search70
  • sortings65
  • dfs and similar52
  • graphs51
  • strings46
  • trees36
  • number theory36
  • bitmasks34
  • combinatorics32
  • two pointers31
  • geometry20
  • dsu19
  • *special18
  • shortest paths15
  • divide and conquer12
  • games10
  • probabilities9
  • hashing9
  • string suffix structures6
  • matrices6
  • interactive6
  • Other (8 tags)22
  • 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.

    2012

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

    Jan
    Feb
    Mar
    Apr
    May
    Jun
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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.

    2013

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

    Jan
    Feb
    Mar
    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.

    2014

    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.

    2015

    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.

    2016

    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.

    2017

    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.

    2018

    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.

    2019

    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.

    2020

    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.

    2021

    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.

    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.

    2023

    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.

    2024

    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
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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.

    2026

    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.

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    LessMore (max 13/day in 2011)

    2012

    Download PNG

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

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    LessMore (max 34/day in 2012)

    2013

    Download PNG

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

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    LessMore (max 40/day in 2013)

    2014

    Download PNG

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

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    LessMore (max 22/day in 2014)

    2015

    Download PNG

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

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    LessMore (max 25/day in 2015)

    2016

    Download PNG

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

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    LessMore (max 5/day in 2016)

    2017

    Download PNG

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

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    2018

    Download PNG

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

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    2019

    Download PNG

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

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    2020

    Download PNG

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

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    2021

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

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    LessMore (max 12/day in 2021)

    2022

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

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    2023

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

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    LessMore (max 11/day in 2023)

    2024

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

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    LessMore (max 7/day in 2024)

    2025

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

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    LessMore (max 5/day in 2025)

    2026

    Download PNG

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

    Jan
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    LessMore (max 4/day in 2026)

    282
    -12
    2070
    2023-04-08 16:05Codeforces Round 864 (Div. 2)270-152082
    2023-03-31 16:35CodeTON Round 4 (Div. 1 + Div. 2, Rated, Prizes!)985-512097
    2023-03-23 16:35Educational Codeforces Round 145 (Rated for Div. 2)74+552148
    2023-03-09 12:35Codeforces Round 857 (Div. 1)566-502093
    2022-02-23 12:10Codeforces Round 773 (Div. 1)875-1132143
    2022-01-22 16:35Codeforces Round 767 (Div. 1)297+332256
    2021-11-28 17:05Deltix Round, Autumn 2021 (open for everyone, rated, Div. 1 + Div. 2)348+402223