CF Elite Tracker
TopExploreDivisionsLearnPracticeUser solvedHelp
HelpLog inSign up

Top rated · Stats

rolandpetrean

Open on Codeforces · Unique solved

Rating2503· Grandmaster

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
97
Unique solved
1,153
Submissions (all)
3,168
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.

  • Unrated44
  • 800–899220
  • 900–99947
  • 1000–109949
  • 1100–119960
  • 1200–129955
  • 1300–139954

Solved by topic

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

  • greedy518
  • math438
  • implementation335
  • constructive algorithms313
  • brute force245
  • dp235
  • data structures

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
2026-02-23 17:05Codeforces Round 1082 (Div. 1)136+112503
2026-01-07 17:35Hello 2026213+162492
2025-12-27 17:35Good Bye 2025171+532476
2025-12-19 17:05Codeforces Global Round 31 (Div. 1 + Div. 2)276+72423
2025-11-23 12:35Codeforces Round 1066 (Div. 1 + Div. 2)349
1400–1499
56
  • 1500–159949
  • 1600–169955
  • 1700–179967
  • 1800–189939
  • 1900–199962
  • 2000–209954
  • 2100–219952
  • 2200–229937
  • 2300–239938
  • 2400–249935
  • 2500–259923
  • 2600–269915
  • 2700–279911
  • 2800–289910
  • 2900–299910
  • 3000–30992
  • 3100–31992
  • 3200–32994
  • 3300–33992
  • 3400–34991
  • 214
  • sortings175
  • binary search166
  • number theory102
  • dfs and similar100
  • bitmasks99
  • graphs99
  • strings92
  • two pointers90
  • trees89
  • combinatorics83
  • dsu44
  • games43
  • interactive42
  • divide and conquer37
  • geometry27
  • probabilities20
  • shortest paths19
  • hashing17
  • *special10
  • flows9
  • matrices9
  • Other (10 tags)38
  • 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 18/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 33/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 36/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 49/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 19/day in 2026)

    -30
    2416
    2025-11-16 16:35Codeforces Round 1064 (Div. 1)242-212446
    2025-10-30 19:35Pinely Round 5 (Div. 1 + Div. 2)132+102467
    2025-10-12 17:05Codeforces Round 1058 (Div. 1)116+612457
    2025-10-03 17:35Squarepoint Challenge (Codeforces Round 1055, Div. 1 + Div. 2)84+1442396
    2025-09-20 17:35Codeforces Global Round 29 (Div. 1 + Div. 2)447+262252
    2025-08-28 17:35Codeforces Round 1046 (Div. 1)786-1072226
    2025-04-26 11:35Codeforces Round 1021 (Div. 1)205+42333