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ODT

Open on Codeforces · Unique solved

Rating2188· 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
20
Unique solved
209
Submissions (all)
439
Years with activity
2016–2024

Solved by problem rating

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

  • Unrated1
  • 800–89914
  • 900–9998
  • 1000–109913
  • 1100–119912
  • 1200–12997
  • 1300–13998

Solved by topic

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

  • implementation77
  • math48
  • dp43
  • greedy42
  • data structures34
  • constructive algorithms33
  • brute force

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
2017-05-04 16:50Codeforces Round 411 (Div. 1)274-392188
2017-04-23 18:45Tinkoff Challenge - Elimination Round230-92227
2017-04-16 17:35Codeforces Round 409 (rated, Div. 1, based on VK Cup 2017 Round 2)37+1372236
2016-12-30 16:45Good Bye 20161453-962099
2016-12-17 18:35Codeforces Round 385 (Div. 1)224
1400–1499
15
  • 1500–159918
  • 1600–169913
  • 1700–17994
  • 1800–189912
  • 1900–19999
  • 2000–20999
  • 2100–21997
  • 2200–22998
  • 2300–239915
  • 2400–24995
  • 2500–25997
  • 2600–269910
  • 2700–27994
  • 2800–28995
  • 2900–29993
  • 3000–30991
  • 3200–32991
  • 31
  • graphs21
  • binary search20
  • dfs and similar19
  • trees16
  • strings15
  • number theory15
  • sortings13
  • geometry11
  • dsu9
  • bitmasks9
  • shortest paths8
  • two pointers7
  • combinatorics6
  • divide and conquer5
  • probabilities4
  • interactive3
  • hashing3
  • string suffix structures2
  • matrices2
  • flows1
  • games1
  • Other (4 tags)4
  • 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.

    2024

    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 22/day in 2016)

    2017

    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 19/day in 2017)

    2024

    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 3/day in 2024)

    -23
    2195
    2016-10-08 15:15Intel Code Challenge Final Round (Div. 1 + Div. 2, Combined)36+1802218
    2016-09-17 15:45Codeforces Round 372 (Div. 1)406-642038
    2016-08-24 18:35AIM Tech Round 3 (Div. 1)210+302102
    2016-08-07 16:05Codeforces Round 366 (Div. 2)4+2232072
    2016-07-22 18:35Codeforces Round 364 (Div. 1)337-631849
    2016-07-19 15:20Codeforces Round 363 (Div. 2)119+641912
    2016-06-08 18:35Codeforces Round 356 (Div. 1)537-871848