CF Elite Tracker
TopExploreDivisionsLearnPracticeUser solvedHelp
HelpLog inSign up

Top rated · Stats

xvzhiming

Open on Codeforces · Unique solved

Rating2154· 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
68
Unique solved
3,095
Submissions (all)
7,737
Years with activity
2021–2025

Solved by problem rating

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

  • Unrated23
  • 800–899139
  • 900–99927
  • 1000–109933
  • 1100–119957
  • 1200–129956
  • 1300–139974

Solved by topic

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

  • greedy976
  • dp971
  • math933
  • constructive algorithms677
  • data structures664
  • implementation579

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
2025-08-07 17:35Atto Round 1 (Codeforces Round 1041, Div. 1 + Div. 2)959-402154
2025-07-19 16:50Order Capital Round 1 (Codeforces Round 1038, Div. 1 + Div. 2)593+212194
2025-05-31 16:35Codeforces Round 1028 (Div. 1)371+322173
2025-04-26 11:35Codeforces Round 1021 (Div. 1)388-282141
2025-04-21 16:35Codeforces Round 1019 (Div. 2)
1400–1499
68
  • 1500–1599118
  • 1600–1699161
  • 1700–1799188
  • 1800–1899278
  • 1900–1999278
  • 2000–2099249
  • 2100–2199257
  • 2200–2299233
  • 2300–2399193
  • 2400–2499203
  • 2500–2599136
  • 2600–2699117
  • 2700–279985
  • 2800–289956
  • 2900–299937
  • 3000–309913
  • 3100–31997
  • 3200–32994
  • 3300–33993
  • 3400–34992
  • brute force
    516
  • graphs485
  • dfs and similar441
  • binary search408
  • sortings379
  • trees368
  • combinatorics300
  • number theory269
  • bitmasks232
  • strings219
  • two pointers200
  • dsu174
  • games134
  • shortest paths117
  • divide and conquer112
  • probabilities111
  • geometry98
  • hashing94
  • interactive68
  • flows61
  • matrices50
  • string suffix structures38
  • Other (9 tags)136
  • 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.

    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.

    May
    Jun
    Jul
    Aug
    Sep
    Oct
    Nov
    Dec

    LessMore (max 15/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 19/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 58/day in 2023)

    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 51/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 59/day in 2025)

    69
    +73
    2169
    2025-04-19 16:35Neowise Labs Contest 1 (Codeforces Round 1018, Div. 1 + Div. 2)3294-1622096
    2025-04-05 17:35Teza Round 1 (Codeforces Round 1015, Div. 1 + Div. 2)513-62258
    2024-10-14 16:35Educational Codeforces Round 170 (Rated for Div. 2)2+3152264
    2024-10-06 08:05Codeforces Round 977 (Div. 2, based on COMPFEST 16 - Final Round)454+271949
    2024-09-27 16:05Codeforces Round 975 (Div. 1)808+21922
    2024-09-20 16:35Codeforces Round 973 (Div. 2)2553-1031920
    2024-09-14 16:35Codeforces Round 972 (Div. 2)531-12023