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Top rated · Stats

Olja

Open on Codeforces · Unique solved

Rating2204· 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
29
Unique solved
167
Submissions (all)
304
Years with activity
2010–2015

Solved by problem rating

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

  • Unrated13
  • 800–8995
  • 900–9992
  • 1000–10993
  • 1100–11999
  • 1200–12992
  • 1300–139911

Solved by topic

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

  • implementation41
  • greedy34
  • math31
  • dp30
  • brute force22
  • *special20
  • constructive algorithms

Rating changes

2010

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

Jan
Feb
Mar
Apr
May

Submission volume

Download all years PNG

2010

Download PNG

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

Jan
Feb
Mar
Apr

Recent rated rounds

When (UTC)ContestRankΔNew
2015-05-03 18:30VK Cup 2015 - Раунд 382-492204
2015-04-17 18:30VK Cup 2015 - Round 226+722253
2015-02-02 18:35Codeforces Round 290 (Div. 1)579-1112181
2013-06-12 17:00ABBYY Cup 3.072+352292
2013-06-07 17:30Codeforces Round 187 (Div. 1)29+83
1400–1499
9
  • 1500–159911
  • 1600–169919
  • 1700–179911
  • 1800–189917
  • 1900–199911
  • 2000–209918
  • 2100–21996
  • 2200–22998
  • 2300–23996
  • 2400–24993
  • 2500–25991
  • 2800–28991
  • 2900–29991
  • 18
  • dfs and similar16
  • sortings15
  • data structures14
  • graphs13
  • binary search12
  • strings10
  • number theory8
  • trees7
  • combinatorics6
  • two pointers6
  • geometry5
  • dsu4
  • probabilities4
  • games4
  • flows3
  • graph matchings3
  • bitmasks3
  • hashing2
  • shortest paths2
  • ternary search1
  • divide and conquer1
  • Other (1 tag)1
  • 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.

    2011

    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.

    2012

    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.

    2013

    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.

    2015

    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 2/day in 2010)

    2011

    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 12/day in 2011)

    2012

    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 24/day in 2012)

    2013

    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 20/day in 2013)

    2015

    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 2015)

    2257
    2013-02-28 17:30Codeforces Round 170 (Div. 1)148-572174
    2013-02-13 17:30Codeforces Round 167 (Div. 1)59+242231
    2013-02-01 17:30Codeforces Round 165 (Div. 1)107-342207
    2013-01-13 17:30Codeforces Round 160 (Div. 1)44+352241
    2012-12-22 17:30Codeforces Round 157 (Div. 1)49+592206
    2012-12-16 17:30Codeforces Round 156 (Div. 1)63+372147
    2012-12-06 17:30Codeforces Round 153 (Div. 1)107-412110