CF Elite Tracker
TopExploreDivisionsLearnPracticeUser solvedHelp
HelpLog inSign up

Top rated · Stats

Chris_Black

Open on Codeforces · Unique solved

Rating2217· 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
30
Unique solved
896
Submissions (all)
2,495
Years with activity
2022–2026

Solved by problem rating

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

  • Unrated33
  • 800–899151
  • 900–99929
  • 1000–109929
  • 1100–119943
  • 1200–129936
  • 1300–139944

Solved by topic

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

  • greedy375
  • math334
  • dp242
  • data structures237
  • implementation204
  • brute force200
  • constructive algorithms

Rating changes

2022

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

Jan
Feb
Mar
Apr
May

Submission volume

Download all years PNG

2022

Download PNG

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

Jan
Feb
Mar
Apr

Recent rated rounds

When (UTC)ContestRankΔNew
2025-10-12 17:05Codeforces Round 1058 (Div. 1)214+832217
2025-09-24 14:50Codeforces Round 1053 (Div. 1)472+112134
2025-08-24 16:35Codeforces Round 1044 (Div. 2)156+402123
2025-07-22 16:35Educational Codeforces Round 181 (Rated for Div. 2)240+252083
2025-06-23 16:35Educational Codeforces Round 180 (Rated for Div. 2)
1400–1499
48
  • 1500–159918
  • 1600–169931
  • 1700–179937
  • 1800–189943
  • 1900–199959
  • 2000–209945
  • 2100–219943
  • 2200–229947
  • 2300–239940
  • 2400–249944
  • 2500–259937
  • 2600–269918
  • 2700–27999
  • 2800–28994
  • 2900–29994
  • 3000–30993
  • 3100–31991
  • 192
  • binary search136
  • sortings117
  • dfs and similar105
  • trees97
  • number theory96
  • graphs90
  • combinatorics84
  • bitmasks79
  • two pointers76
  • strings74
  • dsu47
  • divide and conquer40
  • games31
  • hashing30
  • geometry28
  • shortest paths24
  • probabilities14
  • matrices14
  • interactive14
  • flows9
  • graph matchings8
  • Other (9 tags)39
  • 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.

    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 3/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 22/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 37/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 37/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 20/day in 2026)

    354
    -2
    2058
    2025-06-03 16:35Educational Codeforces Round 179 (Rated for Div. 2)329+02060
    2025-04-21 16:35Codeforces Round 1019 (Div. 2)131+672060
    2025-03-22 16:35Codeforces Round 1011 (Div. 2)636-151993
    2025-03-17 16:35Educational Codeforces Round 176 (Rated for Div. 2)189+752008
    2024-12-02 16:35Educational Codeforces Round 172 (Rated for Div. 2)225+741933
    2024-11-30 17:35Rayan Programming Contest 2024 - Selection (Codeforces Round 989, Div. 1 + Div. 2)2468-761859
    2024-09-20 16:35Codeforces Round 973 (Div. 2)221+871935