CF Elite Tracker
TopExploreDivisionsLearnPracticeUser solvedHelp
HelpLog inSign up

Top rated · Stats

ZCETHAN

Open on Codeforces · Unique solved

Rating2260· 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
11
Unique solved
344
Submissions (all)
795
Years with activity
2021–2026

Solved by problem rating

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

  • Unrated19
  • 800–89925
  • 900–9994
  • 1000–10998
  • 1100–11998
  • 1200–12999
  • 1300–139913

Solved by topic

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

  • math107
  • greedy106
  • dp104
  • data structures92
  • constructive algorithms81
  • implementation62
  • brute force

Rating changes

2021

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

Jan
Feb
Mar
Apr
May

Submission volume

Download all years PNG

2021

Download PNG

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

Jan
Feb
Mar
Apr

Recent rated rounds

When (UTC)ContestRankΔNew
2022-11-06 17:05CodeTON Round 3 (Div. 1 + Div. 2, Rated, Prizes!)304+352260
2022-07-31 16:35CodeTON Round 2 (Div. 1 + Div. 2, Rated, Prizes!)497+122225
2022-04-19 16:35Codeforces Round 783 (Div. 1)184+1062213
2022-03-04 17:35Codeforces Round 774 (Div. 2)14+1862107
2022-02-23 12:10Codeforces Round 773 (Div. 1)
1400–1499
11
  • 1500–15998
  • 1600–16997
  • 1700–17999
  • 1800–189910
  • 1900–199917
  • 2000–209931
  • 2100–219913
  • 2200–229939
  • 2300–239917
  • 2400–249922
  • 2500–259916
  • 2600–269918
  • 2700–279911
  • 2800–28996
  • 2900–29996
  • 3000–309910
  • 3100–31994
  • 3200–32992
  • 3300–33991
  • 55
  • dfs and similar49
  • trees48
  • graphs45
  • binary search36
  • sortings35
  • bitmasks34
  • number theory28
  • combinatorics28
  • strings23
  • dsu20
  • two pointers17
  • divide and conquer16
  • shortest paths13
  • probabilities11
  • games9
  • flows9
  • string suffix structures8
  • interactive7
  • hashing7
  • geometry6
  • fft4
  • Other (5 tags)10
  • 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.

    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 16/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 30/day in 2022)

    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 10/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 15/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 17/day in 2026)

    623
    +17
    1921
    2022-01-30 16:35Codeforces Round 769 (Div. 2)582+751904
    2021-11-12 16:35Codeforces Round 754 (Div. 2)206+1991829
    2021-10-29 16:35Educational Codeforces Round 116 (Rated for Div. 2)351+2561630
    2021-10-25 08:35Codeforces Round 751 (Div. 2)455+2961374
    2021-10-17 13:20Codeforces Round 749 (Div. 1 + Div. 2, based on Technocup 2022 Elimination Round 1)1114+4431078
    2021-10-10 11:05Educational Codeforces Round 115 (Rated for Div. 2)549+635635