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phattd

Open on Codeforces · Unique solved

Rating2135· 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
8
Unique solved
253
Submissions (all)
851
Years with activity
2020–2023

Solved by problem rating

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

  • 800–89921
  • 900–9994
  • 1000–10996
  • 1100–11995
  • 1200–12995
  • 1300–13999
  • 1400–149923

Solved by topic

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

  • greedy101
  • math82
  • data structures76
  • dp73
  • implementation65
  • constructive algorithms63
  • brute force

Rating changes

2020

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

Jan
Feb
Mar
Apr
May

Submission volume

Download all years PNG

2020

Download PNG

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

Jan
Feb
Mar
Apr

Recent rated rounds

When (UTC)ContestRankΔNew
2021-04-12 16:35Educational Codeforces Round 107 (Rated for Div. 2)47+1042135
2021-04-11 16:35Divide by Zero 2021 and Codeforces Round 714 (Div. 2)180+492031
2021-01-29 16:35Educational Codeforces Round 103 (Rated for Div. 2)649+501982
2020-12-20 17:05Codeforces Round 692 (Div. 2, based on Technocup 2021 Elimination Round 3)315+941932
2020-12-15 16:35
1500–1599
7
  • 1600–169912
  • 1700–179913
  • 1800–18991
  • 1900–199913
  • 2000–209928
  • 2100–219913
  • 2200–229924
  • 2300–239944
  • 2400–249914
  • 2500–25997
  • 2600–26991
  • 2700–27992
  • 2800–28991
  • 50
  • sortings33
  • graphs31
  • trees30
  • number theory28
  • dfs and similar27
  • combinatorics26
  • binary search23
  • two pointers21
  • strings20
  • bitmasks20
  • dsu14
  • shortest paths10
  • interactive9
  • geometry9
  • hashing8
  • divide and conquer8
  • probabilities5
  • games4
  • chinese remainder theorem3
  • matrices3
  • meet-in-the-middle2
  • Other (4 tags)7
  • 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.

    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
    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 28/day in 2020)

    2021

    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 43/day in 2021)

    2022

    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 39/day in 2022)

    2023

    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 2023)

    Codeforces Round 690 (Div. 3)
    29
    +245
    1838
    2020-11-24 16:35Codeforces Round 686 (Div. 3)13+4491593
    2020-10-20 16:35Codeforces Round 677 (Div. 3)84+5001144
    2020-06-16 16:35Codeforces Round 650 (Div. 3)325+644644