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KhaleD_

Open on Codeforces · Unique solved

Rating2143· 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
28
Unique solved
1,524
Submissions (all)
4,254
Years with activity
2015–2021

Solved by problem rating

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

  • Unrated587
  • 800–89952
  • 900–99921
  • 1000–109930
  • 1100–119939
  • 1200–129936
  • 1300–139934

Solved by topic

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

  • implementation281
  • dp223
  • math222
  • greedy203
  • data structures180
  • brute force144
  • graphs

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
2018-06-27 16:35Educational Codeforces Round 46 (Rated for Div. 2)23+1132143
2018-06-18 18:35Codeforces Round 489 (Div. 2)172+182030
2018-06-16 19:05Codeforces Round 488 by NEAR (Div. 1)209+282012
2018-05-21 16:45Educational Codeforces Round 44 (Rated for Div. 2)305-51984
2018-01-31 15:05Codeforces Round 460 (Div. 2)
1400–1499
37
  • 1500–159946
  • 1600–169976
  • 1700–179959
  • 1800–189966
  • 1900–199978
  • 2000–209977
  • 2100–219974
  • 2200–229959
  • 2300–239950
  • 2400–249946
  • 2500–259930
  • 2600–269912
  • 2700–27997
  • 2800–28992
  • 2900–29992
  • 3000–30991
  • 3100–31992
  • 3200–32991
  • 114
  • dfs and similar110
  • constructive algorithms109
  • binary search108
  • trees88
  • sortings79
  • strings79
  • number theory77
  • combinatorics59
  • bitmasks47
  • two pointers43
  • dsu39
  • geometry30
  • hashing28
  • shortest paths26
  • probabilities25
  • divide and conquer23
  • games15
  • flows12
  • string suffix structures11
  • interactive9
  • *special8
  • Other (9 tags)39
  • 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.

    2019

    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.

    2021

    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
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    Dec

    LessMore (max 23/day in 2015)

    2016

    Download PNG

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

    Jan
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    LessMore (max 29/day in 2016)

    2017

    Download PNG

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

    Jan
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    Jun
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    LessMore (max 32/day in 2017)

    2018

    Download PNG

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

    Jan
    Feb
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    May
    Jun
    Jul
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    LessMore (max 58/day in 2018)

    2019

    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 12/day in 2019)

    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 2/day in 2020)

    2021

    Download PNG

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

    Jan
    Feb
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    May
    Jun
    Jul
    Aug
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    LessMore (max 23/day in 2021)

    43
    +99
    1989
    2018-01-29 16:35Codeforces Round 459 (Div. 1)307-231890
    2017-08-29 17:05Codeforces Round 430 (Div. 2)98+811913
    2017-08-18 17:05Codeforces Round 429 (Div. 2)360+101832
    2017-08-12 16:35Codeforces Round 428 (Div. 2)339+251822
    2017-07-31 16:35Codeforces Round 427 (Div. 2)347+261797
    2017-07-24 16:35Codeforces Round 425 (Div. 2)989-371771
    2017-07-02 18:05Codeforces Round 422 (Div. 2)90+1021808