CF Elite Tracker
TopExploreDivisionsLearnPracticeUser solvedHelp
HelpLog inSign up

Top rated · Stats

DFZ

Open on Codeforces · Unique solved

Rating2116· 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
16
Unique solved
197
Submissions (all)
516
Years with activity
2018–2026

Solved by problem rating

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

  • 800–89982
  • 900–99922
  • 1000–109929
  • 1100–119920
  • 1200–129910
  • 1300–13998
  • 1400–14995

Solved by topic

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

  • implementation126
  • math56
  • greedy51
  • brute force36
  • dp23
  • constructive algorithms22
  • strings

Rating changes

2018

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

Jan
Feb
Mar
Apr
May

Submission volume

Download all years PNG

2018

Download PNG

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

Jan
Feb
Mar
Apr

Recent rated rounds

When (UTC)ContestRankΔNew
2024-06-06 16:35Codeforces Round 951 (Div. 2)97+732116
2024-05-26 16:35Codeforces Round 948 (Div. 2)20+2132043
2024-05-17 16:35Codeforces Round 945 (Div. 2)820+161830
2024-04-30 17:05Codeforces Round 942 (Div. 2)138+1311814
2024-04-29 16:35Educational Codeforces Round 165 (Rated for Div. 2)
1500–1599
3
  • 1600–16993
  • 1700–17993
  • 1800–18992
  • 1900–19994
  • 2200–22992
  • 2300–23991
  • 2400–24992
  • 2600–26991
  • 22
  • sortings21
  • number theory15
  • binary search12
  • bitmasks10
  • data structures9
  • two pointers6
  • geometry5
  • combinatorics5
  • graphs5
  • dfs and similar4
  • hashing3
  • games3
  • shortest paths3
  • trees2
  • graph matchings2
  • *special2
  • interactive1
  • 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.

    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.

    2025

    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.

    2026

    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 40/day in 2018)

    2020

    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 2020)

    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 8/day in 2024)

    2025

    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 2025)

    2026

    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 7/day in 2026)

    288
    +177
    1683
    2024-04-27 16:35Codeforces Round 941 (Div. 2)188+2571506
    2024-04-21 16:50Codeforces Round 940 (Div. 2) and CodeCraft-23669+3251249
    2018-10-14 12:05Codeforces Round 516 (Div. 2, by Moscow Team Olympiad)3493-16924
    2018-10-05 16:35Codeforces Round 514 (Div. 2)4091-94940
    2018-10-04 09:35Codeforces Round 513 by Barcelona Bootcamp (rated, Div. 1 + Div. 2)3206-391034
    2018-09-23 15:05Codeforces Round 512 (Div. 2, based on Technocup 2019 Elimination Round 1)3421-461073
    2018-09-21 16:35Codeforces Round 511 (Div. 2)4869-1141119